CN105513819A - Ni-Co double metal hydroxide nanometer sheet / N-doped carbon fiber hybrid material and preparation method thereof - Google Patents
Ni-Co double metal hydroxide nanometer sheet / N-doped carbon fiber hybrid material and preparation method thereof Download PDFInfo
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- CN105513819A CN105513819A CN201610000351.1A CN201610000351A CN105513819A CN 105513819 A CN105513819 A CN 105513819A CN 201610000351 A CN201610000351 A CN 201610000351A CN 105513819 A CN105513819 A CN 105513819A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/40—Fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention belongs to the energy storage material technical field, concretely a Ni-Co double metal hydroxide nanometer sheet / N-doped carbon fiber hybrid material and a preparation method thereof. The hybrid material employs nickel salt, cobalt salt and hexamine as a precursor, and is obtained by in situ growing a Ni-Co double metal hydroxide nanometer sheet on the surface of an N-doped carbon fiber with a three-dimensional network structure. The preparation method comprises: preparing an N-doped carbon fiber through in situ oxidation reduction reaction, freeze drying and high temperature carbonization; and in situ growing a Ni-Co double metal hydroxide nanometer sheet on the surface of an N-doped carbon fiber in a solution deposition method. The prepared N-doped carbon fiber greatly increases the electrochemical active sites of a material, improves the electrochemical activity of the material, provides a good template for the efficient deposition of a Ni-Co double metal hydroxide nanometer sheet, and greatly widens the application scope of the material. The hybrid material can be used in the supercapacitor filed as an ideal high-performance energy storage material.
Description
Technical field
The invention belongs to novel energy-storing field of material technology, be specifically related to a kind of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material and preparation method thereof.
Background technology
Ultracapacitor is the class novel energy-storing device be widely studied at present, the outstanding advantages such as it has fast charging and discharging, have extended cycle life.Different according to energy storage mechnism, ultracapacitor mainly can be divided into two large classes: double electric layers supercapacitor and fake capacitance ultracapacitor, wherein the former is mainly electrode material with material with carbon element, and the latter is electrode material mainly with metal oxide/hydroxide/conducting polymer.But along with people's improving constantly energy storage device energy-storage property demand, the material of these one-components above-mentioned often can not satisfy the demands well, thus the exploitation next generation to have multi-functional hybridization electrode imperative.
Nickel cobalt dual-metal hydroxide is a kind of typical fake capacitance material, it has very excellent specific capacity, but due to metal hydroxides be easy to reunite in cyclic process, structural instability, thus the multiplying power stability of electrode and cyclical stability are had a greatly reduced quality, be extremely unfavorable for large-scale commercial applications.Along with going deep into of research, it is found that this class material is attached to the carbon material surface with high magnification stability and high cyclical stability can avoid the problems referred to above well.Bacteria cellulose is a recent domestic research class natural organic high-molecular material more widely, because of its rich reserves, with low cost, becomes one of important raw and processed materials preparing carbon nano-fiber gradually.Research finds, in order to amplitude peak promote the chemical property of bacteria cellulose base carbon fibre, carrying out Heteroatom doping at fiber surface is a very convenient and approach efficiently.The carbon fiber having Heteroatom doping can not only provide more electro-chemical activity site and then promote the specific capacity of material self, the introducing of rough surface then makes it more be conducive to the deposition of nickel cobalt dual-metal hydroxide, prepares the more equally distributed combination electrode material of nickel cobalt dual-metal hydroxide.
Therefore the present invention is intended to make its coated nitrogenous source layer by carrying out preliminary treatment in early stage to bacteria cellulose, and then high temperature cabonization obtains the carbon fiber of N doping, with this nitrogen-doped carbon fiber for obtaining nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material after template growth in situ nickel cobalt dual-metal hydroxide rice sheet.
Summary of the invention
Nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material that the object of the present invention is to provide a kind of preparation process easy, with low cost and preparation method thereof.
Nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material provided by the invention, be presoma by nickel salt, cobalt salt and hexa, obtain at the nitrogen-doped carbon fiber surface growth in situ nickel cobalt dual-metal hydroxide nano sheet with three-dimensional net structure.
The preparation method of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material provided by the invention, concrete steps are as follows:
(1) prepare the bacteria cellulose of N doping presoma polyaniline-coated, prior art can be adopted to prepare (as patent CN102212210A), and the bacteria cellulose of obtained polyaniline-coated is designated as BC/PANI;
(2) bacterial fibers of the polyaniline-coated prepared by step (1) is put into tube furnace high temperature cabonization, prior art can be adopted to prepare (as patent CN201510442267.0), obtain the carbon fiber of N doping, be designated as CBC-N;
(3) take the nitrogen-doped carbon fiber of certain mass, nickel salt, cobalt salt and hexa, put into the solvent of a certain amount of (as 25ml-45ml), stirring and dissolving;
(4) dispersion liquid containing nitrogen-doped carbon fiber, nickel salt, cobalt salt and hexa step (3) prepared is transferred in flask, hydro-thermal reaction 4-10h at 60-90 DEG C; The black precipitate deionized water of the nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material obtained is washed 3-5 time repeatedly, dry, for subsequent use.
Nickel salt described in step of the present invention (3) comprises nickel nitrate or nickel chloride; Described cobalt salt comprises cobalt nitrate or cobalt chloride.
Nitrogen-doped carbon fiber, nickel salt, cobalt salt and hexa solvent used is disperseed to comprise deionized water, ethanol, deionized water/alcohol mixed solution described in step of the present invention (3), preferred deionized water/alcohol mixed solution.
The mass ratio of the nitrogen-doped carbon fiber described in step of the present invention (3) and molybdenum salt is 1:1-1:9, preferred proportion is 1:(4-6), the mol ratio of described nickel salt, cobalt salt and hexa is 1:(1.8-2.2): (9-11), preferred molar ratio is 1:2:10.
Use scanning electron microscopy (SEM), X-ray diffractometer (XRD), electrochemical workstation characterize the structure and morphology of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material that the present invention obtains and are used as the energy-storage property of electrode material for super capacitor, its result is as follows:
(1) test result of SEM shows: when nickel salt, cobalt salt and hexa consumption are less, gained sample CBC-NLDH-0.1 surface does not have the growth (shown in accompanying drawing 2a) of nickel cobalt dual-metal hydroxide nano sheet substantially, this is because too low concentration is not enough to make nickel cobalt dual-metal hydroxide nano sheet be coated on the surface of nitrogen-doped carbon fiber equably; After nickel salt, cobalt salt and hexa consumption improve a little, gained sample CBC-NLDH-0.4 uniformly covers one deck nickel cobalt dual-metal hydroxide nano sheet (shown in accompanying drawing 2b), fibre diameter is also increased to 600 ran thereupon, and the three-dimensional net structure of nitrogen-doped carbon fiber have also been obtained good maintenance, this improves the specific area of material greatly, provides possibility for realizing efficient Ion transfer; But, when nickel salt, cobalt salt and hexa consumption are too high, due to the over-deposit of nickel cobalt dual-metal hydroxide nano sheet, the three-dimensional structure of nitrogen-doped carbon fiber is seriously damaged (shown in accompanying drawing 2c), is unfavorable for the realization of material monolithic chemical property;
(2) XRD test result shows, prepared nitrogen-doped carbon fiber has typical material with carbon element diffraction maximum, wide diffraction maximum near 2 θ=26 ° corresponds to (002) crystal face, diffraction maximum near 2 θ=44 ° corresponds to (100) crystal face, can find out that the degree of crystallinity of nitrogen-doped carbon fiber is lower from this XRD curve; Because the XRD diffracted intensity of nickel cobalt dual-metal hydroxide nano sheet is apparently higher than nitrogen-doped carbon fiber, therefore in three kinds of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid materials (comprising CBC-NLDH-0.1, CBC-NLDH-0.4, CBC-NLDH-0.7), the diffraction maximum of nitrogen-doped carbon fiber is capped, and only shows the diffraction maximum of nickel cobalt dual-metal hydroxide nano sheet; Nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material is in 2 θ=11.7 °, 23.3 °, 35.0 ° and 39.4 ° all have stronger diffraction maximum, correspond respectively to (003), (006), (009) and (015) crystal face of nickel cobalt dual-metal hydroxide nano sheet, demonstrate the successful preparation of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material;
(3) Electrochemical results shows, prepared nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material has excellent electrochemical energy storage performance, and it is 1Ag at discharge current density
-1under most high specific capacitance be 1949.5Fg
-1, and have excellent multiplying power stability and cyclical stability.
The present invention compared with prior art, it has significant advantage: (1) can obtain nitrogen-doped carbon fiber by after the bacteria cellulose carbonization of polyaniline-coated, the electro-chemical activity site not only significantly adding material makes it have higher electro-chemical activity, the high effective deposition of its three-dimensional net structure more nickel cobalt dual-metal hydroxide nano sheet provides good template, has greatly widened the range of application of such material; (2) nickel cobalt dual-metal hydroxide nano sheet homoepitaxial is in nitrogen-doped carbon fiber surface, significantly improves self agglomeration traits of nickel cobalt dual-metal hydroxide nano sheet, thus improves its electrochemical energy storage performance; (3) to adopt that cheap bacteria cellulose, preparation technology are simple, material repeats processability good for raw material, can carry out large-scale production.
Accompanying drawing explanation
Fig. 1 is the preparation process schematic diagram of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material in the present invention.
Fig. 2 is the SEM photo of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material prepared in the present invention, and wherein A, B, C correspond respectively to CBC-NLDH-0.1, CBC-NLDH-0.4, CBC-NLDH-0.7.
Fig. 3 is XRD spectra, and wherein A, B, C, D are respectively nitrogen-doped carbon fiber, CBC-NLDH-0.1, CBC-NLDH-0.4, CBC-NLDH-0.7.
Fig. 4 is the cyclic voltammetry curve figure of different component nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material prepared in the present invention, multiplying power stability diagram and cyclical stability figure.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further, should be understood that these embodiments are only not used in for illustration of the present invention and limit the scope of the invention.In addition should be understood that those skilled in the art can make various change or amendment to the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
embodiment 1,the present embodiment comprises the following steps:
(1) prepare the bacteria cellulose of N doping presoma polyaniline-coated, prior art can be adopted to prepare (as patent CN102212210A), and the bacteria cellulose of obtained polyaniline-coated is designated as BC/PANI;
(2) bacterial fibers of the polyaniline-coated prepared by step (1) is put into tube furnace high temperature cabonization, prior art can be adopted to prepare (as patent CN201510442267.0), obtain the carbon fiber of N doping, be designated as CBC-N;
(3) take 20mg nitrogen-doped carbon fiber, 20mg nickel nitrate, 40mg cobalt nitrate and 100mg hexa, put into the mixed solvent (volume ratio is 1:1) of 30ml deionized water/ethanol, stirring and dissolving;
(4) dispersion liquid containing nitrogen-doped carbon fiber, nickel salt, cobalt salt and hexa step (3) prepared is transferred in flask, hydro-thermal reaction 5h at 80 DEG C; The black precipitate deionized water of the nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material obtained is washed 3 times repeatedly, nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material can be obtained after drying, be designated as CBC-NLDH-0.1, this material is sweeping speed for 5mVs
-1when specific capacity be 860.7Fg
-1.
embodiment 2,nickel nitrate quality in embodiment 1 is become 100mg, and cobalt nitrate quality becomes 200mg, and hexa quality becomes 500mg, and all the other are all with embodiment 1, and final obtained hybrid material is designated as CBC-NLDH-0.4, and this material is sweeping speed for 5mVs
-1when specific capacity be 1335.9Fg
-1.
embodiment 3,nickel nitrate quality in embodiment 1 is become 180mg, and cobalt nitrate quality becomes 360mg, and hexa quality becomes 900mg, and all the other are all with embodiment 1, and final obtained hybrid material is designated as CBC-NLDH-0.7, and this material is sweeping speed for 5mVs
-1when specific capacity be 826.3Fg
-1.
In electro-chemical test, adopt three electrode test systems, the glass-carbon electrode modified with the hybrid material prepared is work electrode, and saturated calomel electrode is reference electrode, and platinum filament is to electrode, and electrolyte used is the KOH solution of 6M.Employing linear sweep voltammetry, constant current charging and discharging curve study the electrochemical energy storage performance of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material prepared in the present invention.
Technological parameter relevant in above-mentioned electrochemical test method is as follows: by nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material and acetylene black, PTFE emulsion (60%) 8:1:1 Homogeneous phase mixing in mass ratio, be then coated on nickel foam collector.Wherein, PTFE emulsion needs to use ethanol breakdown of emulsion.The foam nickel electrode applied is placed in the thermostatic drying chamber of 120 DEG C and is dried to constant weight, be coated in the quality of the electrode material on nickel foam collector by subtraction of poor quality.Finally by tablet press machine, prepared electrode slice is maintained 1min under the pressure of 10MPa, the electrode slice needed for test can be prepared.
Claims (6)
1. a preparation method for nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material, is characterized in that concrete steps are as follows:
(1) bacteria cellulose of N doping presoma polyaniline-coated is prepared; The bacteria cellulose of this polyaniline-coated is designated as BC/PANI;
(2) bacterial fibers of the polyaniline-coated prepared by step (1) is put into tube furnace carbonization, obtain nitrogen-doped carbon fiber, be designated as CBC-N;
(3) take the nitrogen-doped carbon fiber of certain mass, nickel salt, cobalt salt and hexa, put into the solvent of 25ml-45ml, stirring and dissolving;
(4) dispersion liquid containing nitrogen-doped carbon fiber, nickel salt, cobalt salt and hexa step (3) prepared is transferred in flask, hydro-thermal reaction 4-10h at 60-90 DEG C; The black precipitate deionized water of the nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material obtained is washed 3-5 time repeatedly, dry.
2. the preparation method of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material according to claim 1, is characterized in that described nickel salt comprises nickel nitrate or nickel chloride; Described cobalt salt comprises cobalt nitrate or cobalt chloride.
3. the preparation method of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material according to claim 1 and 2, is characterized in that the solvent described in step (3) is deionized water, ethanol, deionized water/alcohol mixed solution.
4. the preparation method of nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material according to claim 1 and 2, it is characterized in that the mass ratio of the nitrogen-doped carbon fiber described in step (3) and molybdenum salt is 1:1-1:9, the mol ratio of described nickel salt, cobalt salt and hexa is 1:(1.8-2.2): (9-11).
5. the nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material prepared by the preparation method described in claim 1-4.
6. nickel cobalt dual-metal hydroxide nano sheet/nitrogen-doped carbon fiber hybrid material as claimed in claim 5 is as the electrode material of high-performance super capacitor.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340399A (en) * | 2016-08-27 | 2017-01-18 | 大连理工大学 | Functionalized polydopamine derived carbon layer coated carbon substrate preparation method and application |
| CN106449127A (en) * | 2016-08-31 | 2017-02-22 | 河北工业大学 | Low-temperature synthesis method of chloride-ion-intercalated 3D nickel-cobalt double-metal-hydroxide material |
| CN106948032A (en) * | 2017-05-02 | 2017-07-14 | 中南大学 | Cellulose base Carbon fibe, preparation method and its method for preparing electrode material |
| CN106960730A (en) * | 2017-01-23 | 2017-07-18 | 四川大学 | A kind of high stability nickel cobalt double-hydroxide electrode material and preparation method thereof |
| CN107275106A (en) * | 2017-06-30 | 2017-10-20 | 湖北大学 | Ultracapacitor combination electrode and preparation method thereof |
| CN107522241A (en) * | 2017-08-20 | 2017-12-29 | 桂林理工大学 | A kind of preparation method and applications of nickel cobalt double-metal hydroxide |
| CN108118362A (en) * | 2018-01-09 | 2018-06-05 | 国家纳米科学中心 | A kind of molybdenum disulfide electro-catalysis production hydrogen electrode and its preparation method and application |
| CN109167074A (en) * | 2018-08-08 | 2019-01-08 | 东华大学 | The nitrogen-doped carbon nanocomposite of hollow additive Mn cobalt oxide nickel coated and preparation |
| CN110028113A (en) * | 2019-04-18 | 2019-07-19 | 桂林理工大学 | A kind of preparation method and applications of cobalt nickel bimetal hydroxide nano piece |
| CN110289179A (en) * | 2019-05-29 | 2019-09-27 | 南京源恒能源科技有限公司 | Reactive metal oxides-carbonization bacteria cellulose electrode material preparation method |
| CN110665527A (en) * | 2019-09-29 | 2020-01-10 | 南京理工大学 | Sea urchin shaped g-C3N4Preparation method of NiAl-LDH semiconductor heterojunction |
| CN110880424A (en) * | 2019-11-28 | 2020-03-13 | 朱旭烈 | Polybenzazole coated nickel-cobalt compound supercapacitor material and preparation method thereof |
| CN111564318A (en) * | 2020-04-30 | 2020-08-21 | 梅火开 | Ni2CoS4Supercapacitor electrode material of graphitized porous carbon nanofiber and preparation method thereof |
| CN112614700A (en) * | 2020-11-30 | 2021-04-06 | 西安西电电力电容器有限责任公司 | Metal sulfide/nitrogen-doped carbon fiber composite nano-film, flexible self-supporting supercapacitor and preparation method |
| CN112992558A (en) * | 2021-02-07 | 2021-06-18 | 东华大学 | Preparation method of metal-based carbon fiber composite electrode, product and application thereof |
| CN113697797A (en) * | 2021-09-02 | 2021-11-26 | 河南师范大学 | N-CNTs @ NiCo-LDHs tree-like nanoflower material, preparation method and photoelectrochemical application thereof |
| CN114108005A (en) * | 2021-11-26 | 2022-03-01 | 河北农业大学 | Preparation method of nickel cobalt hydroxide nanosheet and prepared nickel cobalt hydroxide nanosheet |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106340399A (en) * | 2016-08-27 | 2017-01-18 | 大连理工大学 | Functionalized polydopamine derived carbon layer coated carbon substrate preparation method and application |
| CN106449127A (en) * | 2016-08-31 | 2017-02-22 | 河北工业大学 | Low-temperature synthesis method of chloride-ion-intercalated 3D nickel-cobalt double-metal-hydroxide material |
| CN106960730A (en) * | 2017-01-23 | 2017-07-18 | 四川大学 | A kind of high stability nickel cobalt double-hydroxide electrode material and preparation method thereof |
| CN106948032A (en) * | 2017-05-02 | 2017-07-14 | 中南大学 | Cellulose base Carbon fibe, preparation method and its method for preparing electrode material |
| CN106948032B (en) * | 2017-05-02 | 2019-05-14 | 中南大学 | Cellulose base Carbon fibe, preparation method and its method for being used to prepare electrode material |
| CN107275106A (en) * | 2017-06-30 | 2017-10-20 | 湖北大学 | Ultracapacitor combination electrode and preparation method thereof |
| CN107522241A (en) * | 2017-08-20 | 2017-12-29 | 桂林理工大学 | A kind of preparation method and applications of nickel cobalt double-metal hydroxide |
| CN108118362A (en) * | 2018-01-09 | 2018-06-05 | 国家纳米科学中心 | A kind of molybdenum disulfide electro-catalysis production hydrogen electrode and its preparation method and application |
| CN109167074A (en) * | 2018-08-08 | 2019-01-08 | 东华大学 | The nitrogen-doped carbon nanocomposite of hollow additive Mn cobalt oxide nickel coated and preparation |
| CN110028113A (en) * | 2019-04-18 | 2019-07-19 | 桂林理工大学 | A kind of preparation method and applications of cobalt nickel bimetal hydroxide nano piece |
| CN110289179A (en) * | 2019-05-29 | 2019-09-27 | 南京源恒能源科技有限公司 | Reactive metal oxides-carbonization bacteria cellulose electrode material preparation method |
| CN110665527A (en) * | 2019-09-29 | 2020-01-10 | 南京理工大学 | Sea urchin shaped g-C3N4Preparation method of NiAl-LDH semiconductor heterojunction |
| CN110665527B (en) * | 2019-09-29 | 2022-09-27 | 南京理工大学 | Sea urchin shaped g-C 3 N 4 Preparation method of NiAl-LDH semiconductor heterojunction |
| CN110880424A (en) * | 2019-11-28 | 2020-03-13 | 朱旭烈 | Polybenzazole coated nickel-cobalt compound supercapacitor material and preparation method thereof |
| CN111564318A (en) * | 2020-04-30 | 2020-08-21 | 梅火开 | Ni2CoS4Supercapacitor electrode material of graphitized porous carbon nanofiber and preparation method thereof |
| CN112614700A (en) * | 2020-11-30 | 2021-04-06 | 西安西电电力电容器有限责任公司 | Metal sulfide/nitrogen-doped carbon fiber composite nano-film, flexible self-supporting supercapacitor and preparation method |
| CN112992558A (en) * | 2021-02-07 | 2021-06-18 | 东华大学 | Preparation method of metal-based carbon fiber composite electrode, product and application thereof |
| CN113697797A (en) * | 2021-09-02 | 2021-11-26 | 河南师范大学 | N-CNTs @ NiCo-LDHs tree-like nanoflower material, preparation method and photoelectrochemical application thereof |
| CN113697797B (en) * | 2021-09-02 | 2022-11-08 | 河南师范大学 | N-CNTs @ NiCo-LDHs tree-like nano flower material, preparation method and photoelectrochemical application thereof |
| CN114108005A (en) * | 2021-11-26 | 2022-03-01 | 河北农业大学 | Preparation method of nickel cobalt hydroxide nanosheet and prepared nickel cobalt hydroxide nanosheet |
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