CN106952737A - A kind of preparation method of tungsten disulfide flake nano material - Google Patents
A kind of preparation method of tungsten disulfide flake nano material Download PDFInfo
- Publication number
- CN106952737A CN106952737A CN201710120600.5A CN201710120600A CN106952737A CN 106952737 A CN106952737 A CN 106952737A CN 201710120600 A CN201710120600 A CN 201710120600A CN 106952737 A CN106952737 A CN 106952737A
- Authority
- CN
- China
- Prior art keywords
- preparation
- tungsten
- sulfosalt
- nano material
- hydro
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H01G11/84—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
Mixed the invention discloses a kind of preparation method of tungsten disulfide flake nano material, including by sulfosalt, tungsten salt and water, 12 ~ 24h is reacted under hydrothermal condition, filtered, cleaned, drying obtains tungsten disulfide flake nano material；The temperature of the hydro-thermal reaction is 180 ~ 250 DEG C, and the mol ratio of the tungsten salt and sulfosalt is 1：（4.5~5.5）, the concentration of the sulfosalt is 0.3 ~ 0.4mol/L.The WS for the sheet that the present invention is obtained2The area specific capacitance value of material is 171.819 mF/cm2（100mv/s）, quality is than capacitance 38.873F/g（100mv/s）, the preparation method energy consumption that provides of the present invention is low, and raw material simplicity easily takes, simple to operate, it is easy to accomplish, the flexible sheet WS prepared2Material, specific surface area is high, considerably increases the avtive spot of electrode surface, increases the capacitive property of electrode material.Further, since the exclusive property of two dimension shape nano material, electric transmission and ion diffusion road strength are shorter, be conducive to the expression of capacitive property, it is thus possible to effective storage is carried out to the energy.
Description
Technical field
The invention belongs to energy storage material preparing technical field, more particularly, to a kind of tungsten disulfide flake nano material
Preparation method.
Background technology
Along with electrochemical energy storing device in portable type electronic product, mixed power electric car and large scale industry scale
Application in electric power and energy management, design synthesizes structure novel, and the advanced nano-electrode material of superior performance seems to pass
It is important, it is that a kind of performance is new between battery and traditional capacitor as a member ultracapacitor in electrochemical device
Type, energy storing device efficiently, practical, with charge/discharge rates are fast, power density is high, long service life, temperature in use window
The wide, advantages of environment protection of mouth, in recent years, due to the unique advantage of flexible ultracapacitor, has attracted increasing pass
Note, for example, flexibility, various shapes are lightweight etc., and these characteristics are applied portable, flexibly, or even wearable electronic,
Including soft electronic products, the display and wearable device that can be rolled.In recent years, about play-by-play based on carbon materials
Material and substantial amounts of composite ultracapacitor and flexible miniature ultracapacitor, achieve good achievement.
Although such as Tsing-Hua University of recent year R＆D institution, PLA's chemical defence etc. also begun to grinding in terms of ultracapacitor
Study carefully work and occur in that the specialized vendor such as Shanghai prestige difficult to understand of a collection of production ultracapacitor, Beijing collection star science and technology, Jinzhou brocade holds
Deng company, but China's aggregate level also lags significantly behind advanced international standard, therefore, with the depth studied ultracapacitor
Enter, researchers have had a profound understanding of the performance of ultracapacitor to be improved, key is to find high performance energy storage electrode material
Material.
Conventional electrode material has porous carbon materials, transistion metal compound and conduction based on activated carbon to gather at present
Compound etc..Commercial capacitor is main based on carbon material, but the low shortcoming of carbon material generally existing capacitance.Therefore, closely
Several years many scientific research emphasis are all concentrated on the transition metal oxide with higher theoretical capacity.
In various metal oxides, ruthenium-oxide and its hydrate are acknowledged as optimal electrochemical capacitance material, still
Due to its scarcity of resources and the expensive application that significantly limit it.Searching is cheap, environment-friendly, capacitive property is good,
The metal oxide that ruthenic oxide can be replaced is current study hotspot.
The metal oxide of the transition such as chemical property such as manganese dioxide, nickel oxide, iron oxide is good, theoretical specific capacitance is big,
Electrochemical window is wide, aboundresources, cheap, and environment is friendly the candidate electrode material for developing the great potentiality of ultracapacitor
Material, causes extensive research interest.
Compared with other materials, two dimension（2D）Transient metal sulfide（TMDs）Because having layer structure and big surface
Product, is very promising capacitance material.WS2It is typical transition-metal sulphides, with the layer structure similar to graphite,
It is worth noting that, WS2Interlamellar spacing（0.64nm）Compare graphite（0.34nm）It is much bigger, it can be ensured that the diffusion road of negative ions
Footpath, is remarkably improved electrochemical reaction efficiency and the utilization rate of active material, and then improve its energy density and functional density；
This structure causes WS2With performances such as special Guang ﹑ electricity ﹑ catalysis, it is widely used in the fields, WS such as Cuiization ﹑ hydrogen storages storage lithium 2No
But there is higher theoretical electric capacity and suitable negative potential operation interval, and aboundresources, it is cheap, it is environment-friendly, because
But a kind of extremely potential high-performance negative material.Discovery and sign with graphene, equally as typical lamellar
The Transition-metal dichalcogenide of structure（TMDCs）, such as WS2,MoS2, individual layer or few Rotating fields are stripped into ultracapacitor
Research in terms of achieve good progress.In TMDC, two layers of element sulphur atomic layer, in sandwich metal atomic layer, is one
Individual similar sandwich S-M-S structure.Transition-metal dichalcogenide have semiconductor feature and obviously it is each to
The opposite sex.And the feature that each layer all shows two-dimensional material is stopped to current position, on preparing WS2Method seldom, therefore greatly
Amount production is still limited.
The content of the invention
It is an object of the invention to according to deficiency of the prior art, there is provided a kind of tungsten disulfide flake nano material
Preparation method.
The purpose of the present invention is achieved through the following technical solutions：
The invention provides a kind of preparation method of tungsten disulfide flake nano material, sulfosalt, tungsten salt and water are mixed, hydro-thermal bar
12 ~ 24h is reacted under part, is filtered, is cleaned, drying obtains tungsten disulfide flake nano material；The temperature of the hydro-thermal reaction is
180 ~ 250 DEG C, the mol ratio of the tungsten salt and sulfosalt is 1：（4.5~5）, the concentration of the sulfosalt is 0.15 ~ 0.2mol/L.
Preferably, the tungsten salt and the mixing mol ratio of sulfosalt are 1：5, the temperature of described hydro-thermal reaction is 250 DEG C, institute
The hydro-thermal reaction time stated is 12h, and described sulfosalt concentration is 0.2mol/L.
Preferably, the tungsten salt tungsten chloride, the ammonium salt is thioacetamide.
Preferably, the tungsten salt is tungsten hexachloride.
Preferably, described hydro-thermal reaction is carried out in a kettle..
Preferably, the preparation method specifically includes following steps：
S1. sulfosalt is configured to the aqueous solution, then adds tungsten salt, stirred, obtain mixed aqueous solution；
S2. mixed aqueous solution in S1 is placed in reactor, added after carbon cloth, be put into baking oven heating, after the completion of reaction, filtering,
Cleaning, drying, obtains the tungsten disulfide flake nano material.
In technical scheme, by adjusting hydrothermal reaction time and hydrothermal temperature, so that in flexible carbon cloth
One layer of uniform WS is grown in substrate2Nanometer film；By setting suitable calcining heat, a kind of high crystalline, property are obtained
The excellent WS of energy2Electrode material.
Compared with prior art, the present invention has advantages below and beneficial effect：
WS has directly been synthesized on flexible carrier in the present invention2Nano-electrode material, not only increases the ratio surface of electrode material
Product, so as to be effectively increased the performance of the negative pole of ultracapacitor, can be applied to flexible WS2/MnO2Asymmetric super capacitor
Device is assembled.
Brief description of the drawings
Fig. 1：（a）For the sheet WS in embodiment 12Low range ESEM（SEM）Picture,（b）For in embodiment 1
Sheet WS2 high power ESEM（SEM）Picture；
Fig. 2：Sheet WS in embodiment 12Transmission electron microscope（TEM）Picture.
Fig. 3：For the sheet WS in embodiment 12X-ray diffraction pattern（XRD）Spectrogram.
Fig. 4：For the sheet WS in embodiment 12In 100mV/s cyclic voltammetry curve.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiments and the drawings, but embodiment does not do any to the present invention
The restriction of form.Unless stated otherwise, the reagent of the invention used, method and apparatus is the art conventional reagent, methods
And equipment.
Unless stated otherwise, agents useful for same and material of the present invention are purchased in market.
Embodiment 1：
WS2Be synthesized by the step of hydro-thermal method one realization, specific steps:
（1）0.5635g thioacetamides are weighed in beaker, 20 milliliters of water are added, stirring and dissolving is standby.
（2）Weigh the addition of 0.5950g tungsten hexachlorides solid above-mentioned（1）Solution in, continue stir insert 25ml within one hour
Pyroreaction kettle in, add the commercial carbon cloth of (2cm × 3cm) cleaned up, 12h reacted in an oven, reaction temperature is
250 DEG C, take out.
Wherein, commercial carbon cloth is first pre-processed, and pretreatment operation is：
Ultrasonic cleaning 15min first is carried out with ethanol, 2ml is added after being then dissolved in 12ml 3M hydrochloric acid with 0.759g sodium tungstates
30% hydrogen peroxide is stirred to clarify as seed liquor.The commercial carbon cloth cleaned is immersed in above-mentioned seed liquor, and in heating plate
The temperature growth nucleus of upper 350 DEG C of use.
（3）Carbon cloth is taken out, successively with deionized water, washes of absolute alcohol in the baking oven for being then placed in 60 DEG C, dries 2 small
When, obtain tungsten disulfide flake nano material.
Embodiment 2-7：
Based on the scheme of embodiment 1, the different reaction condition by regulating and controlling influences WS2Growth, condition is as shown in table 1.
WS in the embodiment 1 ~ 7 of table 1.2The adjusting and controlling growth condition of sheet
Other preparation condition be the same as Examples 1 in comparative example 1 and 2, different conditions and result is as shown in table 2：
Table 2
Comparative example 3：Sodium tungstate 1mmol L-1, sodium thiosulfate 4mmol L-1, 200 DEG C of temperature, time 24h,
Other be the same as Examples 1, result is to be grown on carbon cloth without tungsten disulfide.
Comparative example 4：Other equal be the same as Examples 1, the difference is that the substrate used is nickel foam, result is without two in nickel foam
Tungsten sulfide grows.
From embodiment 1 ~ 7 and comparative example 1 ~ 4, it can be seen that the selection of tungsten salt and sulfosalt and concentration, hydro-thermal time, water
The selection of hot temperature, even substrate is to growth WS2Have significant effect.
Fig. 1 a are the sheet WS in embodiment 12Low range scanning electron microscopic picture, Fig. 1 b be embodiment 1 in sheet
WS2 high power scanning electron microscopic picture；Fig. 2 is the sheet WS in embodiment 12Transmission electron microscope picture.Fig. 3 is in embodiment 1
Sheet WS2X-ray diffracting spectrum figure.
This curve approximation rectangle is can be seen that from Fig. 4 cyclic voltammetry curves, shows the WS of this sheet2Material has
Good invertibity and capacitance characteristic.By calculating, the WS of this sheet2The area specific capacitance value of material is 171.819 mF/
cm2, quality is than capacitance 38.873F/g（100mv/s）Show its good electrochemical capacitance performance.
Claims (9)
1. a kind of preparation method of tungsten disulfide flake nano material, it is characterised in that mix sulfosalt, tungsten salt and water, hydro-thermal
Under the conditions of react 12 ~ 24h, filter, clean, drying, obtain tungsten disulfide flake nano material；The temperature of the hydro-thermal reaction is
180 ~ 250 DEG C, the mol ratio of the tungsten salt and sulfosalt is 1：（4.5~5.5）, the concentration of the sulfosalt is 0.3 ~ 0.4mol/L.
2. preparation method according to claim 1, it is characterised in that the tungsten salt and the mixing mol ratio of sulfosalt are 1：5,
The temperature of described hydro-thermal reaction is 250 DEG C, and described the hydro-thermal reaction time is 12h, and described sulfosalt concentration is 0.375mol/
L。
3. preparation method according to claim 1, it is characterised in that the tungsten salt tungsten chloride, the ammonium salt is thio second
Acid amides.
4. preparation method according to claim 1, it is characterised in that the tungsten salt is tungsten hexachloride.
5. preparation method according to claim 1, it is characterised in that described hydro-thermal reaction is carried out in a kettle..
6. preparation method according to claim 1, it is characterised in that the preparation method specifically includes following steps：
S1. sulfosalt is configured to the aqueous solution, then adds tungsten salt, stirred, obtain mixed aqueous solution；
S2. mixed aqueous solution in S1 is placed in reactor, added after carbon cloth, be put into baking oven heating, after the completion of reaction, filtering,
Cleaning, drying, obtains the tungsten disulfide flake nano material.
7. preparation method according to claim 6, it is characterised in that carbon cloth is pre-processed, pretreatment operation is first to use
EtOH Sonicate cleans 15min, and 12ml 3M hydrochloric acid is then dissolved in 0.759g sodium tungstates, then adds the hydrogen peroxide of 2ml 30%
As seed liquor, the carbon cloth cleaned is immersed in above-mentioned seed liquor, and carried out in advance using 350 DEG C of temperature on hot plate
Processing.
8. the tungsten disulfide flake nano material that a kind of any described preparation method of claim 1 to 7 is prepared.
9. application of the tungsten disulfide flake nano material in energy storage material is prepared described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120600.5A CN106952737A (en) | 2017-03-02 | 2017-03-02 | A kind of preparation method of tungsten disulfide flake nano material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120600.5A CN106952737A (en) | 2017-03-02 | 2017-03-02 | A kind of preparation method of tungsten disulfide flake nano material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106952737A true CN106952737A (en) | 2017-07-14 |
Family
ID=59468172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710120600.5A Pending CN106952737A (en) | 2017-03-02 | 2017-03-02 | A kind of preparation method of tungsten disulfide flake nano material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106952737A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108039289A (en) * | 2017-12-15 | 2018-05-15 | 陕西科技大学 | A kind of WS of macroreticular structure2Preparation method of nano material |
| CN109181638A (en) * | 2018-09-05 | 2019-01-11 | 南京理工大学 | A kind of tungsten disulfide-redox graphene three-dimensional self-assembled structures absorbing material |
| CN109309224A (en) * | 2018-10-30 | 2019-02-05 | 陕西科技大学 | A kind of preparation method of tungsten disulfide/CFC@C multiphase composite electrode material |
| CN109647440A (en) * | 2019-01-24 | 2019-04-19 | 青岛科技大学 | A kind of utilization method of stalk |
| CN110373718A (en) * | 2019-05-30 | 2019-10-25 | 杭州电子科技大学 | A kind of preparation method of two dimension tungsten disulfide film |
| CN110542710A (en) * | 2019-09-16 | 2019-12-06 | 中国石油大学(华东) | Preparation method of tungsten disulfide-based formaldehyde gas sensor and application of gas sensor in vehicle-mounted microenvironment detection |
| CN111463443A (en) * | 2020-03-28 | 2020-07-28 | 旌德君创科技发展有限公司 | Pt-WS2@ carbon cloth composite catalyst and preparation method thereof |
| CN112811469A (en) * | 2021-03-15 | 2021-05-18 | 陕西科技大学 | Preparation method of single-layer or few-layer tungsten disulfide nano material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509635A (en) * | 2011-10-31 | 2012-06-20 | 华中科技大学 | Preparation method of flexible super capacitor based on carbon cloth |
| CN103426648A (en) * | 2013-07-30 | 2013-12-04 | 中山大学 | MOS2 (molybdenum disulfide) and TiO2 (titanium dioxide) nanocomposites and production method thereof |
| CN104876282A (en) * | 2015-04-27 | 2015-09-02 | 浙江大学 | CoSx nanomaterial used as super capacitor electrode and preparation method of CoSx nanomaterial |
| CN105826082A (en) * | 2015-01-08 | 2016-08-03 | 广东工业大学 | Integrated super capacitor electrode material preparation method and applications thereof |
-
2017
- 2017-03-02 CN CN201710120600.5A patent/CN106952737A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509635A (en) * | 2011-10-31 | 2012-06-20 | 华中科技大学 | Preparation method of flexible super capacitor based on carbon cloth |
| CN103426648A (en) * | 2013-07-30 | 2013-12-04 | 中山大学 | MOS2 (molybdenum disulfide) and TiO2 (titanium dioxide) nanocomposites and production method thereof |
| CN105826082A (en) * | 2015-01-08 | 2016-08-03 | 广东工业大学 | Integrated super capacitor electrode material preparation method and applications thereof |
| CN104876282A (en) * | 2015-04-27 | 2015-09-02 | 浙江大学 | CoSx nanomaterial used as super capacitor electrode and preparation method of CoSx nanomaterial |
Non-Patent Citations (2)
| Title |
|---|
| XIAO SHANG: "《Carbon fiber cloth supported interwoven WS2nanosplates with highly enhanced performances for super capacitors》", 《APPLIED SURFACE SCIENCE》 * |
| 陈亚玲等: "《水热合成二硫化钨/石墨烯复合材料及其氧还原性能》", 《无机化学学报》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108039289A (en) * | 2017-12-15 | 2018-05-15 | 陕西科技大学 | A kind of WS of macroreticular structure2Preparation method of nano material |
| CN109181638A (en) * | 2018-09-05 | 2019-01-11 | 南京理工大学 | A kind of tungsten disulfide-redox graphene three-dimensional self-assembled structures absorbing material |
| CN109309224A (en) * | 2018-10-30 | 2019-02-05 | 陕西科技大学 | A kind of preparation method of tungsten disulfide/CFC@C multiphase composite electrode material |
| CN109309224B (en) * | 2018-10-30 | 2021-07-27 | 陕西科技大学 | Preparation method of tungsten disulfide/CFC @ C multiphase composite electrode material |
| CN109647440A (en) * | 2019-01-24 | 2019-04-19 | 青岛科技大学 | A kind of utilization method of stalk |
| CN109647440B (en) * | 2019-01-24 | 2021-07-20 | 青岛科技大学 | Straw utilization method |
| CN110373718A (en) * | 2019-05-30 | 2019-10-25 | 杭州电子科技大学 | A kind of preparation method of two dimension tungsten disulfide film |
| CN110542710A (en) * | 2019-09-16 | 2019-12-06 | 中国石油大学(华东) | Preparation method of tungsten disulfide-based formaldehyde gas sensor and application of gas sensor in vehicle-mounted microenvironment detection |
| CN110542710B (en) * | 2019-09-16 | 2020-06-19 | 中国石油大学(华东) | Preparation method and application of tungsten disulfide-based formaldehyde gas sensor |
| CN111463443A (en) * | 2020-03-28 | 2020-07-28 | 旌德君创科技发展有限公司 | Pt-WS2@ carbon cloth composite catalyst and preparation method thereof |
| CN112811469A (en) * | 2021-03-15 | 2021-05-18 | 陕西科技大学 | Preparation method of single-layer or few-layer tungsten disulfide nano material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106952737A (en) | A kind of preparation method of tungsten disulfide flake nano material | |
| CN105720251B (en) | A kind of sodium-ion battery antimony trisulfide based composites and preparation method thereof | |
| CN105591077B (en) | A kind of preparation method of molybdenum carbide/nitrogen sulphur codope sponge graphene anode material for sodium-ion battery | |
| CN107275606B (en) | Carbon-coated spinel lithium manganate nanocomposite and preparation method and application thereof | |
| CN103326007B (en) | The preparation method of three-dimensional graphite thiazolinyl tin dioxide composite material and application thereof | |
| CN106099076B (en) | A kind of flower-shaped nitrogen-doped carbon cladding bismuth structural composite material and its preparation method and application | |
| Wen et al. | Titanium dioxide nanotrees for high-capacity lithium-ion microbatteries | |
| CN105883940B (en) | Preparation method of block NiS2 and application of block NiS2 to sodium-ion battery | |
| WO2020147294A1 (en) | Selenium-doped mxene material, preparation method therefor and use thereof | |
| WO2022032745A1 (en) | Vo2/mxene composite material, preparation method therefor and use thereof | |
| CN113249751B (en) | Two-dimensional titanium carbide supported stable two-phase molybdenum diselenide composite material and preparation method and application thereof | |
| CN105870447A (en) | Preparation method of nitrogen-doped rutile TiO2/C negative electrode material for sodium-ion battery | |
| CN107285385A (en) | A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application | |
| CN108831755A (en) | A kind of preparation method of electrode for capacitors multi-element composite material | |
| CN105161690B (en) | The method that molybdenum disulfide charge and discharge cycles ability is improved by doped graphene and titanium dioxide | |
| CN106920932B (en) | A kind of leaf of bamboo shape Co (OH)2/ graphene combination electrode material and preparation method thereof | |
| CN106981650B (en) | Preparation method of nanoscale elemental bismuth | |
| CN103972488A (en) | Method for improving conductivity of zinc oxide negative electrode material applicable to lithium ion battery | |
| CN105826547A (en) | Method for preparing graphene-doped/carbon-clad lithium titanate composite negative electrode material through three-step method | |
| CN103400980A (en) | Iron sesquioxide/nickel oxide core-shell nanorod array film as well as preparation method and application thereof | |
| CN112331845B (en) | Preparation method of cobaltosic oxide nanowire array negative electrode material | |
| CN106981626B (en) | A kind of preparation method of tungsten disulfide/Super P sodium-ion battery self-supporting cathode | |
| CN108847482A (en) | Graphene/basic carbonate cobalt nanowire three-dimensional composite material preparation method and the application in anode of lithium ion battery | |
| CN105789602A (en) | Preparation method of zinc oxide nanosheet for negative electrode of lithium-ion battery | |
| Wang et al. | Sulfur-doped carbon coating on K 2 Ti 6 O 13 nanowires as anode of sodium ion batteries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |