CN106040277B - A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt - Google Patents

A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt Download PDF

Info

Publication number
CN106040277B
CN106040277B CN201610401904.4A CN201610401904A CN106040277B CN 106040277 B CN106040277 B CN 106040277B CN 201610401904 A CN201610401904 A CN 201610401904A CN 106040277 B CN106040277 B CN 106040277B
Authority
CN
China
Prior art keywords
vesica
string
carbon fiber
supporting
composite material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610401904.4A
Other languages
Chinese (zh)
Other versions
CN106040277A (en
Inventor
刘天西
鄢家杰
张由芳
黄云鹏
左立增
顾华昊
鲁恒毅
缪月娥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fudan University
Original Assignee
Fudan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fudan University filed Critical Fudan University
Priority to CN201610401904.4A priority Critical patent/CN106040277B/en
Publication of CN106040277A publication Critical patent/CN106040277A/en
Application granted granted Critical
Publication of CN106040277B publication Critical patent/CN106040277B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/24Nitrogen compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0225Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B01J20/205Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs
    • B01J35/58
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90Selection of catalytic material
    • H01M4/92Metals of platinum group
    • H01M4/925Metals of platinum group supported on carriers, e.g. powder carriers
    • H01M4/926Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Abstract

The invention belongs to nano-fiber composite material technical field, the preparation method of " vesica string " structural carbon fiber composite material of specially a kind of supporting Pt.The method of the present invention includes:By spinnability high molecular material spinning solution, nanofiber is obtained by electrostatic spinning technique;By water-bath or hydro-thermal iron oxide hydroxide fusiform nanometer rods are uniformly uploaded in nanofiber surface;The tunica fibrosa that iron oxide hydroxide is modified is soaked in dopamine solution, poly-dopamine clad is prepared;It is handled by high temperature cabonization, realizes the carbonization of fiber;" vesica string " structural carbon fiber material is obtained using acid soak removal ferroso-ferric oxide, Pt nano particle particle is uniformly uploaded to by carbon material surface by infusion process, finally obtains the new structure carbon fibre composite of supporting Pt.The method of the present invention safety and environmental protection, the compound carbon fiber prepared have many advantages, such as that catalytic activity height, large specific surface area, conductivity are high and physical and chemical performance is stablized, can play a significant role in the energy devices such as fuel cell, water-splitting.

Description

A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt
Technical field
The invention belongs to nano-fiber composite material technical fields, and in particular to a kind of " vesica string " structural carbon of supporting Pt Fibrous composite and preparation method thereof.
Background technology
Nanofiber is the Typical Representative of monodimension nanometer material, and electrostatic spinning technique directly can continuously be made as one kind The method of standby polymer nanofiber, is widely noticed all the time.The nano fibrous membrane being prepared because it is good with stability, It the advantages that porosity height, large specific surface area, conductivity height and more substance and electron-transport duct, can be widely applied to be catalyzed The electrode material etc. of agent carrier, hydrogen storage material, sorbing material and ultracapacitor or lithium ion battery, advantageously accounts for current society The energy crisis and problem of environmental pollution of meeting.
Traditional electrostatic spinning nano fiber surface is smooth, and structure is single, it is difficult to meet the needs of practical application.Multistage " capsule The introducing of bubble " structure, not only increases the roughness of fiber and the surface area of fibrous material, and is conducive to improve material Surface-active.Present invention firstly provides the preparation methods of " vesica string " structural carbon fiber material, it is intended to novel have by this The preparation of the fibrous material of multi-stage pore structure can make up the deficiency of traditional fibre material, to be answered in more areas With.
As modernization development is skyrocketed through energy demand, the limited deposit of traditional fossil energy is in huge consumption Increasingly deficient under rate, the utilization of new energy become the intractable project of world community facing.Currently, the platinum of high activity Carbon(Pt/C)Catalyst is energy field master catalyst to be used, and the expensive cost of noble metal platinum and not good enough stability Limit its further extensive use.Therefore, the Pt supported catalysts that utilization rate is high, stability is good become new energy in recent years One of goal in research of source domain.It is controllably coated on iron oxide hydroxide table by the present invention using the self-polymeric reaction of poly-dopamine Face, then the carbon coating iron oxide of nucleocapsid is obtained by high temperature cabonization, it finally removes iron oxide and is prepared with novel " capsule The high-specific surface area carbon fibre material of bubble string " structure, " vesica string " structural carbon fiber of supporting Pt is prepared as matrix Composite material.
Invention content
The purpose of the present invention is to provide " vesica string " structural carbon fibers of the simple novel load Pt of preparation process a kind of Composite material and preparation method.
" vesica string " structural carbon fiber composite material of supporting Pt provided by the present invention, preparing raw material composition includes: Macromolecule, molysite, dopamine, ammonium hydroxide, chloroplatinic acid can be spun.
" vesica string " structural carbon fiber composite material of supporting Pt provided by the present invention selects " vesica string " structure carbon fiber Dimension material is substrate, and Pt nano particle particle is uniformly uploaded to vesicle surface by infusion process and is prepared.
The present invention is to provide a kind of high-specific surface area, high porosity, " vesicas " being carbonized by poly-dopamine shell Uniformly upload the multilevel hierarchy carbon fibre composite of Pt nano particle particle.
" vesica string " structural carbon fiber composite material of supporting Pt provided by the present invention, preparation process include:Pass through Electrostatic spinning apparatus obtains nano fibrous membrane;By immersion method iron oxide hydroxide fusiform nanometer rods are realized in nanofiber surface Uniformly upload and the controllable cladding of poly-dopamine;It is handled by high temperature cabonization, a step realizes the carbonization of fiber, hydroxide oxygen Conversion of the iron to ferroso-ferric oxide and poly-dopamine to nitrogen-doped carbon material;Pass through four oxidations three in hydrochloric acid removal system Iron prepares the carbon nano-fiber materials with unique " vesica string " structure;Pt nano particle particle is uniformly uploaded by infusion process " vesica string " structural carbon fiber composite material of supporting Pt is prepared to vesicle surface.It is as follows:
(1)By spinnability macromolecule dissolution in solution, it is configured to spinning solution, is prepared by single needle electrostatic spinning technique Obtain nano fibrous membrane;
(2)Above-mentioned nano fibrous membrane is placed in convection oven and is dried, and carries out pre-oxidation treatment;
(3)Nano fibrous membrane through pre-oxidation treatment is placed in iron salt solutions, hydro-thermal is carried out(Bath)Reaction, obtains hydrogen-oxygen Change the nano fibrous membrane of oxygen iron modification;
(4)The nano fibrous membrane that iron oxide hydroxide is modified is placed in dopamine solution and is reacted, the packet of poly-dopamine is obtained Coating;
(5)The nano fibrous membrane of the iron oxide hydroxide modification of poly-dopamine cladding is subjected to high temperature cabonization, is obtained in vesica " vesica string " nanofiber containing ferroso-ferric oxide, is denoted as CNF@Fe3O4@NC;
(6)By CNF@Fe3O4@NC are soaked in acid solution, and the ferriferous oxide in removal system is obtained with vesica string structure Pure carbon fiber, be denoted as CNF@NC;
(7)The CNF@NC of certain mass are placed in platinum acid chloride solution, excessive ammonia is added dropwise and carries out Pt reduction;
(8)It takes out tunica fibrosa obtained above to be washed repeatedly with deionized water, and dry, obtains the CNF NC of supporting Pt, It is denoted as CNF@NC@Pt.
In the present invention, step(1)Described in spinnability macromolecule be selected from polyacrylonitrile(PAN), polyamic acid(PAA), Polyamide(PA)And polystyrene(PS), preferably PAN.The spinning solution range of solid content separately configured is 8% ~ 20%, preferably 10- 12%。
In the present invention, step(2)Described in the pre-oxidation treatment program of nanofiber be:(1)It slowly rises in air To 200-300 DEG C, heating rate controls within the scope of 2 ~ 10 DEG C/min temperature;(2)1-3 h are kept at such a temperature.
In the present invention, step(3)Described in molysite be selected from iron chloride, ferric nitrate, ferric sulfate and ferric acetate, preferably chlorine Change iron.The concentration of iron salt solutions is controlled in 10 ~ 50 mg/mL, preferably 25 mg/mL.Hydro-thermal(Bath)Reaction temperature control 60 ~ 120℃(It is preferred that 80 DEG C), the reaction time is 6-12 h.
In the present invention, step(4)Described in dopamine solution concentration range be 0.5 ~ 3 mg/mL, wherein use pH Buffer solution Tris/TrisHCl, a concentration of 10 mM/L;Reaction temperature is 55-65 DEG C(It is preferred that 60 DEG C), reaction time 3- 12 h(It is preferred that 3-6 h).
In the present invention, step(5)Described in high temperature cabonization, process is:The hydrogen that obtained poly-dopamine is coated Oxidation oxygen iron modification nano fibrous membrane be placed in tube furnace, temperature programming is controlled in nitrogen atmosphere, i.e., from room temperature to 400-500 DEG C of heating, time are 1-2 h, heat preservation 0.5-1 h;Then it is warming up to 600-800 DEG C again, the heating-up time is 1-3 h, 1-2 h are kept the temperature, preferably carburizing temperature is 700 DEG C ~ 800 DEG C.
In the present invention, step(6)Described in removal system in ferriferous oxide acid solution, selected from hydrochloric acid, nitric acid, sulfuric acid, Or their mixtures for centainly matching.Preferred concentration is 8-15% hydrochloric acid solutions.
In the present invention, step(7)Described in a concentration of 1 ~ 30 mg/mL of platinum acid chloride solution, ammonium hydroxide is added dropwise to slightly mistake Amount.
In the present invention, step(7)The CNF@NC are placed in platinum acid chloride solution, and soaking time is 3-12 h.
Use SEM(Scanning electron microscope), X-ray diffraction analysis, electrochemical workstation come characterize the present invention obtained Supporting Pt " vesica string " structural carbon fiber composite material structure and morphology and chemical property as electrochemical catalyst, Its result is as follows:
(1)The test result of SEM shows:Polyacrylonitrile(PAN)With excellent spinnability.By to concentration of dope, The optimization of the various aspects condition such as electrospinning processes, the PAN fiber surface that the present invention is prepared is smooth, and diameter is more uniform It is distributed between 300-400 nm.In addition, PAN fiber is in random distribution, higher porosity is shown, is follow-up FeOOH particles Growth with vesica provides space.PAN nanofiber membrane is immersed in iron salt solutions, FeOOH fusiform nano particles are in It is radial to be grown in fiber surface, almost cover entire fiber surface.Further upload poly-dopamine(PDA)Afterwards, FeOOH receives Rice grain surface forms one layer of uniform PDA clad.One step of high temperature cabonization realizes the carbonization of fiber, iron oxide hydroxide to Ferroso-ferric oxide and poly-dopamine form the carbon fibre material of multilevel hierarchy to the conversion process of nitrogen-doped carbon material, referring to Attached drawing 1.Further by the ferroso-ferric oxide in hydrochloric acid removal system, that is, prepares the carbon with unique " vesica string " structure and receive Rice fibrous material, referring to attached drawing 2." vesica string " structural carbon fiber composite material of supporting Pt is prepared by the precipitation method, joins See attached drawing 3;
(2)X-ray diffraction characterization result shows:" vesica string " carbon nano-fiber preparation-obtained in the present invention is shown There is the diffraction pattern of platinum after supporting Pt, referring to attached drawing 4 on collection of illustrative plates in the diffraction curve of pure carbon material;
(3)Hydrogen reduction Electrochemical results show:" vesica string " carbon Nanowire of prepared supporting Pt in the present invention Dimension composite material is a kind of good oxygen reduction catalyst, and take-off potential is down to 100 mV (Vs. RHE) and is catalyzed participation and is The reaction process of four electronics.Separately in terms of cyclical stability, prepared supporting Pt " vesica string " carbon nano-fiber in the present invention Also clear superiority is shown, referring to attached drawing 5, Fig. 6;
(4)Liberation of hydrogen Electrochemical results show:" vesica string " carbon nano-fiber of prepared supporting Pt in the present invention Composite material is also a kind of good liberation of hydrogen catalyst, its Hydrogen Evolution Performance is better than business platinum carbon, take-off potential after supporting Pt Down to 30 mV (Vs. RHE), referring to attached drawing 7.
The present invention relates to four basic principles:
(1)Contain a large amount of cyano on polyacrylonitrile nanofiber, hydroxyl, carboxyl isoreactivity are introduced by preoxidation process Functional group.These functional groups can be used as active site, be sent out under certain conditions with macromolecular, small molecule, ion, nano particle etc. Raw further reaction.In the present invention in a heated condition, iron ion has an effect with polyacrylonitrile surface group and generates hydroxide Oxygen iron particle realizes the specific surface area of fusiform FeOOH particles being uniformly distributed and composite material has also been significantly greatly increased;
(2)Dopamine is amino-containing pyrocatechol small molecule, can aoxidize autohemagglutination in a mild condition substantially any Material surface forms a strata dopamine modified membrane.Poly-dopamine has certain reactivity, with reducing metal ion or can connect Other active groups of branch.The oxidation self-polymeric reaction that dopamine is utilized in the present invention realizes poly-dopamine in fusiform FeOOH particles The controllable cladding on surface is the committed step of " vesica string " carbon nano-fiber preparation process;
(3)It prepares poly-dopamine cladding FeOOH and uploads PAN by high temperature cabonization, a step realizes the carbonization of fiber, hydrogen Oxygen iron is aoxidized to ferroso-ferric oxide and poly-dopamine to the conversion process of nitrogen-doped carbon material, forms the carbon fiber of multilevel hierarchy Material;
(4)Successfully solves the group of Pt nano particles using " vesica string " carbon nano-fiber being prepared as matrix supporting Pt Poly- problem gives full play to its catalytic activity;The carbon nano vesicle obtained after poly-dopamine carbonization has the atom knot of class graphene Structure, the high doped of electroactive N atoms make the conductive energy that there is " vesica " carbon lower impedance therefore to enhance carbon fibre material Power.
The present invention supporting Pt " vesica string " structural carbon fiber composite material, can be used as catalyst carrier, hydrogen storage material, The application of the electrode material of sorbing material and ultracapacitor or lithium ion battery.
The present invention remarkable advantage be:
(1)Preparation process is mild, environmentally friendly, easily operated, is a kind of Green Chemistry preparation method;
(2)Mentality of designing is ingenious:It is logical as substrate using the pre-oxidized acrylonitrile polymer fiber for containing abundant oxygen-containing functional group The multilevel hierarchy nanofiber that FeOOH modifications are prepared in ion-exchange is crossed, the property of dopamine is further utilized, it is real Controllable cladding of the existing poly-dopamine in fusiform FeOOH particle surfaces.Poly-dopamine after carbonization still keeps fusoid structure, The carbon nano-fiber of this novel " vesica string " structure is prepared in the oxides-containing iron that its cladding is removed by ion exchange; The agglomeration traits for successfully solving Pt nano particles as matrix supporting Pt give full play to its catalytic activity, height are prepared The composite material of catalytic activity.
Description of the drawings
After Fig. 1 is pure PAN fiber prepared in the present invention, PAN@FeOOH, PAN@FeOOH@PDA and carbonization CNF@Fe3O4@NC。
Fig. 2 is prepared " vesica string " structure pure carbon fiber in the present invention.
Fig. 3 is the CNF@NC@Pt of different Pt load capacity prepared in the present invention.
Fig. 4 is the XRD diagram of material prepared in the present invention, corresponds respectively to pure PAN, PAN@FeOOH, PAN@FeOOH@ CNF@Fe after PDA, carbonization3O4The@NC and CNF@NC and CNF@NC@Pt for removing iron oxide.
Fig. 5 is the hydrogen reduction LSV curves of CNF@NC@Pt prepared in the present invention.
Fig. 6 is the stable circulation performance comparison diagram of CNF@NC@Pt and business Pt/C prepared in the present invention.
Fig. 7 is the liberation of hydrogen LSV curves of pure CNF@NC prepared in the present invention, CNF@NC@Pt and business Pt/C.
Specific implementation mode
With reference to specific example, the present invention is further explained, it should be appreciated that these embodiments be merely to illustrate the present invention and It is not used in and limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art Various changes or modification can be made to the present invention, such equivalent forms are equally fallen within defined by the application the appended claims Range.
Embodiment 1
The present embodiment includes the following steps:
(1)Polyacrylonitrile is dissolved in dimethylformamide and is configured to spinning solution, passes through single needle electrostatic spinning technique Polyacrylonitrile nanofiber film is prepared;
(2)Polyacrylonitrile fibre membrane is placed in convection oven and is pre-oxidized;
(3)Polyacrylonitrile after pre-oxidation is placed in 25mg/mL FeCl3·6H2Iron oxide hydroxide modification is obtained in O salting liquids Polyacrylonitrile fibre, be denoted as PAN@FeOOH;
(4)PAN@FeOOH are placed in 3 h in 1mg/mL dopamine solutions and obtain the clad of poly-dopamine, are denoted as PAN@ FeOOH@PDA;
(5)PAN FeOOH PDA are subjected to high temperature cabonization, obtain " vesica string " nanometer containing ferroso-ferric oxide in vesica Fiber is denoted as CNF@Fe3O4@NC;
(6)By CNF@Fe3O4@NC are soaked in acid solution, and the ferriferous oxide in removal system obtains having vesica string structure Pure carbon fiber is denoted as CNF@NC;
(7)The CNF@NC of certain mass are placed in 5 mg/mL platinum acid chloride solutions, excessive ammonia is added dropwise and carries out Pt reduction;
(8)Tunica fibrosa is taken out after a certain period of time and washs simultaneously drying for standby repeatedly with deionized water, obtains the CNF of supporting Pt NC is denoted as CNF@NC@Pt-5.
Embodiment 2
Platinum acid chloride solution solubility in embodiment 1 is become into 10 mg/mL, remaining with embodiment 1, is finally obtained Composite material is denoted as CNF@NC@Pt-10, which also shows good oxygen reduction catalytic activity, and take-off potential is down to 100 MV (Vs. RHE), steady-state current density reach 12.3 mA cm-2
Embodiment 3
Platinum acid chloride solution solubility in embodiment 1 is become into 20 mg/mL, remaining with embodiment 1, is finally obtained Composite material is denoted as CNF@NC@Pt-20, which also shows good oxygen reduction catalytic activity, and take-off potential is down to 100 MV (Vs. RHE), steady-state current density reach 17.8 mA cm-2
Embodiment 4
Platinum acid chloride solution solubility in embodiment 1 is become into 30 mg/mL, remaining with embodiment 1, is finally obtained Composite material is denoted as CNF@NC@Pt-30, which shows slightly to be inferior to CNF@NC@Pt-10's due to the reunion of Pt nano particles Oxygen reduction catalytic activity, take-off potential reach 8.2 mA cm down to 100 mV (Vs. RHE), steady-state current density-2
In electro-chemical test, using three electrode test systems, it is with the platinum carbon electrode that prepared hybrid material is modified Working electrode, Ag/AgCl electrodes are reference electrode, and graphite rod is to electrode.Before testing, in advance by electrolyte lead to nitrogen or 30 min of oxygen.Using cyclic voltammetry curve(CV)And linear sweep voltammetry(LSV)Prepared hydridization in the research present invention The electrocatalytic oxidation reduction reaction activity of material.Relevant technological parameter is as follows in above-mentioned electrochemical test method:
(1)The pretreatment of platinum carbon electrode:Platinum carbon electrode is polished with 1.0,0.3,0.05 microns of alumina powder successively, is made At minute surface.It is cleaned, is then dried up with nitrogen spare with deionized water and EtOH Sonicate after polishing every time;
(2)The preparation of modified electrode:Using direct drop-coating in the surface present invention by pretreated platinum carbon electrode Prepared hybrid material is modified.It is 1 that prepared hybrid material, which is specially dispersed in deionized water and ethyl alcohol ratio,:1 Solvent in, be made the solution of 2 mg/mL, after being ultrasonically treated 1 h, take 5 microlitres of solution to drop on platinum carbon electrode, in 70 DEG C of baking Dry 0.5 h in case.

Claims (10)

1. a kind of preparation method of " vesica string " structural carbon fiber composite material of supporting Pt, which is characterized in that with " vesica string " Structural carbon fiber be load matrix, using infusion process on carbon skeleton growth in situ Pt nano-particles;It prepares raw material:One Kind or a variety of spinnability high molecular materials, dopamine, molysite, ammonium hydroxide, chloroplatinic acid;It is as follows:
(1)By spinnability macromolecule dissolution in solution, it is configured to spinning solution, is prepared by single needle electrostatic spinning technique Nano fibrous membrane;
(2)Nano fibrous membrane is placed in convection oven and is dried, and carries out pre-oxidation treatment;
(3)Nano fibrous membrane is placed in iron salt solutions, hydro-thermal reaction is carried out, obtains the nanofiber of iron oxide hydroxide modification Film;
(4)The nano fibrous membrane that iron oxide hydroxide is modified is placed in dopamine solution and is reacted, the clad of poly-dopamine is obtained;
(5)The nano fibrous membrane of the iron oxide hydroxide modification of poly-dopamine cladding is subjected to high temperature cabonization, obtains containing in vesica " vesica string " nanofiber of ferroso-ferric oxide, is denoted as CNF@Fe3O4@NC;
(6)By CNF@Fe3O4@NC are soaked in acid solution, the ferriferous oxide in removal system, obtain having the pure of vesica string structure Carbon fiber is denoted as CNF@NC;
(7)The CNF@NC of certain mass are placed in platinum acid chloride solution, excessive ammonia is added dropwise and carries out Pt reduction;
(8)Tunica fibrosa is taken out, is washed repeatedly with deionized water, and is dry, the CNF NC of supporting Pt is obtained, is denoted as CNF NC Pt;
Step(1)Described in spinnability macromolecule be selected from polyacrylonitrile, polyamic acid, polyamide and polystyrene.
2. the preparation method of " vesica string " structural carbon fiber composite material of supporting Pt according to claim 1, feature It is, step(1)Described in spinnability macromolecule configuration spinning solution range of solid content be 8% ~ 20%.
3. the preparation method of " vesica string " structural carbon fiber composite material of supporting Pt according to claim 1 or 2, special Sign is, step(2)Described in nanofiber pre-oxidation treatment, program is:(a)It is to slowly warm up to 200- in air 300 DEG C, heating rate controls within the scope of 2 ~ 10 DEG C/min;(b)1-3 h are kept at such a temperature.
4. the preparation method of " vesica string " structural carbon fiber composite material of supporting Pt according to claim 3, feature It is, step(3)Described in molysite be selected from iron chloride, ferric nitrate, ferric sulfate and ferric acetate;The concentration of iron salt solutions controls In 10 ~ 50 mg/mL;At 60 ~ 120 DEG C, the reaction time is 6-12 h for hydrothermal temperature control.
5. the preparation method of " vesica string " structural carbon fiber composite material of supporting Pt according to claim 1,2 or 4, It is characterized in that, step(4)Described in dopamine solution a concentration of 0.5 ~ 3 mg/mL, wherein use pH buffer solutions Tris/ TrisHCl, a concentration of 10 mM;Reaction temperature is 55-65 DEG C, and the reaction time is 3-12 h.
6. the preparation method of " vesica string " structural carbon fiber composite material of supporting Pt according to claim 5, feature It is, step(5)Described in high temperature cabonization, process is:The iron oxide hydroxide modification that obtained poly-dopamine is coated Nano fibrous membrane be placed in tube furnace, temperature programming is controlled in nitrogen atmosphere, i.e., from room temperature to 400-500 DEG C, is risen The warm time is 1-2 h, heat preservation 0.5-1 h;Then it is warming up to 600-800 DEG C again, the heating-up time is 1-3 h, heat preservation 1-2 h.
7. the preparation method of " vesica string " structural carbon fiber composite material of the supporting Pt according to claim 1,2,4 or 6, It is characterized in that, step(6)The acid solution is selected from hydrochloric acid, nitric acid, sulfuric acid or mixture that they centainly match.
8. the preparation method of " vesica string " structural carbon fiber composite material of supporting Pt according to claim 7, feature It is, step(7)Described in a concentration of 1 ~ 30 mg/mL of platinum acid chloride solution, ammonium hydroxide is added dropwise to slightly excessive;CNF@NC are set In platinum acid chloride solution, soaking time is 3-12 h.
9. " vesica string " the structural carbon fiber composite wood for the supporting Pt that preparation method as described in one of claim 1-8 obtains Material.
10. " vesica string " structural carbon fiber composite material of supporting Pt as claimed in claim 9 is as catalyst carrier, hydrogen storage The application of the electrode material of material, sorbing material and ultracapacitor or lithium ion battery.
CN201610401904.4A 2016-06-08 2016-06-08 A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt Expired - Fee Related CN106040277B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610401904.4A CN106040277B (en) 2016-06-08 2016-06-08 A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610401904.4A CN106040277B (en) 2016-06-08 2016-06-08 A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt

Publications (2)

Publication Number Publication Date
CN106040277A CN106040277A (en) 2016-10-26
CN106040277B true CN106040277B (en) 2018-10-26

Family

ID=57170771

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610401904.4A Expired - Fee Related CN106040277B (en) 2016-06-08 2016-06-08 A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt

Country Status (1)

Country Link
CN (1) CN106040277B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107354406B (en) * 2017-06-18 2018-12-11 泰安天成复合材料有限公司 A kind of preparation method of metal-based carbon fiber composite material
CN107574510A (en) * 2017-09-18 2018-01-12 扬州大学 A kind of preparation method of the composite nano fiber of the ferroso-ferric oxide for carrying space and carbon
CN108914253B (en) * 2018-05-31 2023-09-29 海南师范大学 Method for preparing carbon nanofiber and modifying electrode thereof based on electrostatic spinning and high-temperature carbonization
CN108808022B (en) * 2018-06-14 2021-05-28 南京大学 Mesostructure-based high-performance low-platinum fuel cell catalyst and preparation method thereof
CN109097978B (en) * 2018-08-03 2021-08-27 武汉纺织大学 Conductive nanofiber porous membrane material with surface loaded with nano metal particles and preparation method thereof
CN109904428B (en) * 2019-03-05 2020-09-18 蒙娜丽莎集团股份有限公司 Preparation method of iron selenide/carbon composite material
CN110624492B (en) * 2019-08-21 2020-11-20 北京化工大学 Device and method for preparing vesicle by using carbon fiber
CN110813350B (en) * 2019-10-25 2022-11-18 江苏大学 Carbon-based composite electrocatalyst and preparation method and application thereof
CN112436138A (en) * 2020-10-26 2021-03-02 福建海峡石墨烯产业技术研究院有限公司 Ligustrum-derived binderless self-standing carbon foam negative electrode material and preparation method thereof
CN112206824A (en) * 2020-10-30 2021-01-12 江西维邦生物科技有限公司 Preparation method of polydopamine-mediated magnetic bimetallic nanoenzyme
CN113235300B (en) * 2021-05-06 2022-07-26 甘肃省民翔新能源科技有限公司 Preparation method of high-temperature-resistant lithium ion battery composite diaphragm
CN113751014B (en) * 2021-09-16 2023-12-01 福州大学 Monodisperse spindle-shaped monoatomic catalyst for denitration and sulfur resistance and preparation method thereof
CN114672845A (en) * 2022-04-27 2022-06-28 桂林电子科技大学 Carbon nanofiber-based metal sulfide self-supporting composite material and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011112822A3 (en) * 2010-03-10 2012-01-19 University Of Florida Research Foundation. Inc. Implantable therapeutic device and methods of making
CN105056983A (en) * 2015-07-25 2015-11-18 复旦大学 Molybdenum disulfide nanosheet/nitrogen-doped carbon fiber hybrid material and preparation method therefor
CN105280896A (en) * 2015-09-12 2016-01-27 复旦大学 Cobalt-nickel sulfide/carbon nanofiber composite material and preparation method and application thereof
CN105734725A (en) * 2016-03-02 2016-07-06 复旦大学 Pure carbon fiber material adopting 'vesical string' structure and preparation method of pure carbon fiber material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9340426B2 (en) * 2012-02-21 2016-05-17 North Carolina State University High value lignin derivatives, polymers, and copolymers and use thereof in thermoplastic, thermoset, composite, and carbon fiber applications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011112822A3 (en) * 2010-03-10 2012-01-19 University Of Florida Research Foundation. Inc. Implantable therapeutic device and methods of making
CN105056983A (en) * 2015-07-25 2015-11-18 复旦大学 Molybdenum disulfide nanosheet/nitrogen-doped carbon fiber hybrid material and preparation method therefor
CN105280896A (en) * 2015-09-12 2016-01-27 复旦大学 Cobalt-nickel sulfide/carbon nanofiber composite material and preparation method and application thereof
CN105734725A (en) * 2016-03-02 2016-07-06 复旦大学 Pure carbon fiber material adopting 'vesical string' structure and preparation method of pure carbon fiber material

Also Published As

Publication number Publication date
CN106040277A (en) 2016-10-26

Similar Documents

Publication Publication Date Title
CN106040277B (en) A kind of " vesica string " structural carbon fiber composite material and preparation method of supporting Pt
CN105734725B (en) One kind " vesica string " structure pure carbon fiber material and preparation method thereof
CN105742074B (en) Selenizing molybdenum composite material of a kind of porous carbon fiber based on poly-dopamine/bis- and preparation method thereof
CN110052282B (en) Preparation and application of transition metal phosphide/core-shell type nitrogen-doped carbon nanofiber composite material
Zhang et al. A review: carbon nanofibers from electrospun polyacrylonitrile and their applications
CN104733700B (en) Preparation method of flexible anode of lithium-selenium battery
Yang et al. Air cathode catalysts of microbial fuel cell by nitrogen-doped carbon aerogels
CN104241661A (en) Preparation method for combination electrode for all-vanadium redox flow battery
CN104332640A (en) Preparation method of thermally-reduced graphene oxide/nano carbon fiber composite electrode for full-vanadium flow battery
CN105712303B (en) A kind of selenizing molybdenum nanometer sheet/fiber base carbon aerogel composite material and preparation method thereof
CN111841588A (en) Preparation method and application of phosphide/carbon composite porous fiber
CN106229157A (en) A kind of polyatom co-doped nano carbon fiber and one one step preparation method and purposes
CN110820005B (en) Preparation method of efficient and stable ruthenium dioxide based acidic oxygen evolution electrocatalyst
CN109616625A (en) A kind of one-dimensional porous carbon fiber of sulfur compound nano particle and preparation and application
CN112795949A (en) Preparation method and application of biomass carbon-based transition metal diatom electrocatalyst
CN110504456A (en) It is a kind of based on nitrogen oxygen doping ball/piece porous carbon materials oxygen reduction electrode and its preparation method and application
CN110526227A (en) A kind of carbon material and its preparation method and application
CN113258081B (en) Modified electrode for flow battery, preparation method of modified electrode and flow battery
CN112246261A (en) Cobalt phosphide graded porous nanowire material and preparation and application thereof
CN1667857A (en) Process for preparing nano structured super platinum film carbon electrodes
CN110289179A (en) Reactive metal oxides-carbonization bacteria cellulose electrode material preparation method
CN114447345B (en) Preparation method of composite electrode material and application of MFCs coupled denitrification filter to wastewater treatment
CN116354338A (en) Method for short-time rapid high-temperature thermal shock treatment of MOF surface growth CNTs
CN112811537B (en) Preparation method and application of iron-nitrogen doped carbon nanotube electrode
CN115548401A (en) Preparation method of asymmetric vanadium battery based on functional carbon nanofiber electrode

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181026

Termination date: 20210608

CF01 Termination of patent right due to non-payment of annual fee