CN109119258A - A kind of preparation method of electrode material - Google Patents

A kind of preparation method of electrode material Download PDF

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Publication number
CN109119258A
CN109119258A CN201810979691.2A CN201810979691A CN109119258A CN 109119258 A CN109119258 A CN 109119258A CN 201810979691 A CN201810979691 A CN 201810979691A CN 109119258 A CN109119258 A CN 109119258A
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China
Prior art keywords
nickel
nickel foam
preparation
ternary metal
ethyl alcohol
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Pending
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CN201810979691.2A
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Chinese (zh)
Inventor
胥传来
郝昌龙
匡华
徐丽广
刘丽强
吴晓玲
朱建平
宋珊珊
胡拥明
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Jiangnan University
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Jiangnan University
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Publication of CN109119258A publication Critical patent/CN109119258A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/84Processes for the manufacture of hybrid or EDL capacitors, or components thereof
    • H01G11/86Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/24Electrodes 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/30Electrodes characterised by their material
    • 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
    • Y02E60/13Energy storage using capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

A kind of preparation method of electrode material, belongs to materials chemistry and electrochemical technology field.The present invention configures the metallic ion mixed liquor of Zn, Co and Ni, and nickel foam is immersed in mixed solution and reacts by the oxide skin(coating) for the nickel surface that defoams, and the nickel foam that surface has Zn-Co-Ni ternary metal oxide nano-chip arrays is prepared;Preparation gained Zn-Co-Ni- nickel foam is reacted with vulcanized sodium, Zn-Co-Ni ternary metal sulfide nanometer sheet is made.The present invention is for traditional single metal sulfide or binary metal sulfide, ternary metal sulfide prepared by the present invention has higher electro-chemical activity, this is because the mutual synergistic effect between three metal ion species results in higher electro-chemical activity.

Description

A kind of preparation method of electrode material
Technical field
The present invention relates to a kind of preparation methods of electrode material, belong to materials chemistry and electrochemical technology field.
Background technique
Green energy resource is one of the important leverage that human society is capable of sustainable development, and energy storage device is green energy resource One important component.Supercapacitor is as a kind of novel green energy storage device, in new energy technology, electric car etc. There is very important broad prospect of application in field.Determine the often electrode material of performance of the supercapacitor.According to energy storage machine Supercapacitor can be divided into double layer capacitor and Faraday pseudo-capacitance device by the difference of reason.The appearance of double layer capacitor Relatively early, usually using the carbon material of high specific area and high conductivity as electrode material, and Faraday pseudo-capacitance device is due to existing Abundant reversible faraday's redox reaction, usually have the specific capacitance higher than double layer capacitor, therefore attracted more Carry out more research interests.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, provides a kind of preparation method of electrode material.
According to technical solution provided by the invention, a kind of preparation method of electrode material, steps are as follows: configuration Zn, Co and Nickel foam is immersed in mixed solution and carries out instead by the metallic ion mixed liquor of Ni, the oxide skin(coating) for the nickel surface that defoams It answers, the nickel foam that surface has Zn-Co-Ni ternary metal oxide nano-chip arrays is prepared;It will preparation gained Zn-Co- Ni- nickel foam is reacted with vulcanized sodium, and Zn-Co-Ni ternary metal sulfide nanometer sheet is made.
The preparation method of the electrode material, the specific steps are as follows:
(1) preparation of ternary metal oxide nano-chip arrays:
A, nickel foam is taken, handles 10min in the ultra sonic bath of the 40KHz of 5M aqueous hydrochloric acid solution, the surface oxidation for the nickel that defoams Nitride layer, and respectively rinsed three times with ethyl alcohol and water;
B, at room temperature, by six chloride hydrate zinc of 1mmol, 1mmol Nickel dichloride hexahydrate, 2 mmol cobalt chloride hexahydrates and 5mmol hexa is dissolved in the aqueous solution of 70mL ethyl alcohol, and stirring 30min forms clear solution;
C, step b acquired solution is transferred in the reaction kettle that volume is 100mL, is then immersed in pretreated obtained by step a Clean nickel foam;Reaction kettle is heated in an oven and in 100-150 DEG C of holding 8h;
D, after reaction kettle natural cooling, nickel foam is taken out, is rinsed with water three times, then in 70 DEG C of air drying 12h, that is, prepares The nickel foam that surface has Zn-Co-Ni ternary metal oxide nano-chip arrays is obtained;
(2) vulcanize: step (1) preparation gained surface being taken to have the foam of Zn-Co-Ni ternary metal oxide nano-chip arrays Nickel is put it into stainless steel cauldron, and 70mL is then added and contains the aqueous solution of 0.6-1.2g vulcanized sodium, by reaction kettle plus Heat is to 100-120 DEG C and maintains 10h;After cooling, with water and ethyl alcohol cleaning sample, and at 60-80 DEG C vacuum degree be less than- 0.07MPa dries 12h, and Zn-Co-Ni ternary metal sulfide nanometer sheet is made.
In step (1) b, the aqueous solution of ethyl alcohol, water: the volume ratio of ethyl alcohol is 1:1.
Beneficial effects of the present invention: the present invention relative to traditional single metal sulfide or binary metal sulfide and It says, ternary metal sulfide prepared by the present invention has higher electro-chemical activity, this is because between three metal ion species It is mutual synergistic effect result in higher electro-chemical activity.
Detailed description of the invention
Fig. 1 is the SEM figure of Zn-Co-Ni ternary metal sulfide nanometer sheet prepared by the embodiment of the present invention 1.
It (A) is the SEM figure of the foam nickel base of blank, (B-D) is Zn-Co-Ni tri- prepared by the embodiment of the present invention 1 The SEM of first nano metal sulfide chip arrays schemes.
Fig. 2 is the electrochemistry of Zn-Co-Ni ternary metal sulfide nano-chip arrays prepared by the embodiment of the present invention 1 Test result.
It (A) is cyclic voltammetry curve, (B) constant current charge/discharge curve.
Specific embodiment
Embodiment 1
(1) Zn-Co-Ni ternary metal oxide nano-chip arrays are prepared in foam nickel surface
The oxide layer that nickel foam is handled to 10min foam-expelling nickel in the ultra sonic bath of 5M aqueous hydrochloric acid solution first, is used in combination Second alcohol and water rinses for several times.Then, at room temperature, by six chloride hydrate zinc of 1mmol, 1mmol Nickel dichloride hexahydrate, 2 mmol Cobalt chloride hexahydrate and 5mmol hexa are dissolved in the mixed of 70 mL water and ethyl alcohol (the volume ratio 1:1 of water and ethyl alcohol) It closes in solution, stirring 30min forms clear solution.Transferring the solution into volume is 100mL with polytetrafluoroethyllining lining In stainless steel cauldron, it is then immersed in one piece of pretreated clean nickel foam.Then reaction kettle is heated simultaneously in an oven In 105 DEG C of holding 8h.After reaction kettle natural cooling, nickel foam is taken out, is rinsed with water for several times, then in 70 DEG C of air dryings Zn-Co-Ni ternary metal oxide nano-chip arrays have been prepared in foam nickel surface in 12h.
(2) Zn-Co-Ni ternary metal sulfide nano-chip arrays are prepared in foam nickel surface
The stainless steel that the Zn-Co-Ni ternary metal oxide nano-chip arrays prepared in step 1 are put into Teflon liner is anti- It answers in kettle, the aqueous solution that 70mL contains 0.6g vulcanized sodium is then added, reaction kettle is heated to 100 DEG C and maintains 10h.It is cooling Afterwards, with water and ethyl alcohol cleaning sample, and 12h is dried in vacuo at 60 DEG C.
Resulting Zn-Co-Ni ternary metal sulfide nano-chip arrays with field emission scanning electron microscope (FESEM, Hitachi S4800) (SEM) characterized, and photo is shown in Fig. 1.Electrochemical Characterization result is shown in Fig. 2.
Embodiment 2
The preparation method of the electrode material, the specific steps are as follows:
(1) preparation of ternary metal oxide nano-chip arrays:
A, nickel foam is taken, handles 10min in the ultra sonic bath of the 40KHz of 5M aqueous hydrochloric acid solution, the surface oxidation for the nickel that defoams Nitride layer, and three times with the rinsing of second alcohol and water;
B, at room temperature, by six chloride hydrate zinc of 1mmol, 1mmol Nickel dichloride hexahydrate, 2 mmol cobalt chloride hexahydrates and 5mmol hexa is dissolved in the aqueous solution of 70mL ethyl alcohol, and stirring 30min forms clear solution;
C, step b acquired solution is transferred in the reaction kettle that volume is 100mL, is then immersed in pretreated obtained by step a Clean nickel foam;Reaction kettle is heated in an oven and in 100 DEG C of holding 8h;
D, after reaction kettle natural cooling, nickel foam is taken out, is rinsed with water three times, then in 70 DEG C of air drying 12h, that is, is steeping Zn-Co-Ni ternary metal oxide nano-chip arrays have been prepared in foam nickel surface;
(2) vulcanize: taking nickel foam of step (1) preparation gained containing Zn-Co-Ni ternary metal oxide nano-chip arrays, it will It is put into stainless steel cauldron, and the aqueous solution that 70mL contains 0.6g vulcanized sodium is then added, autoclave is heated to 100 DEG C And maintain 10h;After cooling, with water and ethyl alcohol cleaning sample, and at 60 DEG C, vacuum degree is less than the dry 12h of -0.07MPa.
In step (1) b, the volume ratio of water and ethyl alcohol is 1:1.
Embodiment 3
The preparation method of the electrode material, the specific steps are as follows:
(1) preparation of ternary metal oxide nano-chip arrays:
A, nickel foam is taken, handles 10min in the ultra sonic bath of the 40KHz of 5M aqueous hydrochloric acid solution, the surface oxidation for the nickel that defoams Nitride layer, and three times with the rinsing of second alcohol and water;
B, at room temperature, by six chloride hydrate zinc of 1mmol, 1mmol Nickel dichloride hexahydrate, 2 mmol cobalt chloride hexahydrates and 5mmol hexa is dissolved in the aqueous solution of 70mL ethyl alcohol, and stirring 30min forms clear solution;
C, step b acquired solution is transferred in the reaction kettle that volume is 100mL, is then immersed in pretreated obtained by step a Clean nickel foam;Reaction kettle is heated in an oven and in 150 DEG C of holding 8h;
D, after reaction kettle natural cooling, nickel foam is taken out, is rinsed with water three times, then in 70 DEG C of air drying 12h, that is, is steeping Zn-Co-Ni ternary metal oxide nano-chip arrays have been prepared in foam nickel surface;
(2) vulcanize: taking nickel foam of step (1) preparation gained containing Zn-Co-Ni ternary metal oxide nano-chip arrays, it will It is put into stainless steel cauldron, and the aqueous solution that 70mL contains 1.2g vulcanized sodium is then added, reaction kettle is heated to 120 DEG C And maintain 10h;After cooling, with water and ethyl alcohol cleaning sample, and at 80 DEG C, vacuum degree is less than the dry 12h of -0.07MPa.
In step (1) b, the volume ratio of water and ethyl alcohol is 1:1.

Claims (3)

1. a kind of preparation method of electrode material, it is characterized in that steps are as follows: the metal ion mixing of configuration Zn, Co and Ni are molten Liquid, the oxide skin(coating) for the nickel surface that defoams, nickel foam is immersed in mixed solution and is reacted, and surface is prepared and has The nickel foam of Zn-Co-Ni ternary metal oxide nano-chip arrays;Gained Zn-Co-Ni- nickel foam will be prepared and vulcanized sodium is anti- It answers, Zn-Co-Ni ternary metal sulfide nanometer sheet is made.
2. the preparation method of electrode material according to claim 1, it is characterized in that specific step is as follows:
(1) preparation of ternary metal oxide nano-chip arrays:
A, nickel foam is taken, handles 10min in the ultra sonic bath of the 40KHz of 5M aqueous hydrochloric acid solution, the surface oxidation for the nickel that defoams Nitride layer, and respectively rinsed three times with ethyl alcohol and water;
B, at room temperature, by six chloride hydrate zinc of 1mmol, 1mmol Nickel dichloride hexahydrate, 2 mmol cobalt chloride hexahydrates and 5mmol hexa is dissolved in the aqueous solution of 70mL ethyl alcohol, and stirring 30min forms clear solution;
C, step b acquired solution is transferred in the reaction kettle that volume is 100mL, is then immersed in pretreated obtained by step a Clean nickel foam;Reaction kettle is heated in an oven and in 100-150 DEG C of holding 8h;
D, after reaction kettle natural cooling, nickel foam is taken out, is rinsed with water three times, then in 70 DEG C of air drying 12h, that is, prepares The nickel foam that surface has Zn-Co-Ni ternary metal oxide nano-chip arrays is obtained;
(2) vulcanize: step (1) preparation gained surface being taken to have the foam of Zn-Co-Ni ternary metal oxide nano-chip arrays Nickel is put it into stainless steel cauldron, and 70mL is then added and contains the aqueous solution of 0.6-1.2g vulcanized sodium, by reaction kettle plus Heat is to 100-120 DEG C and maintains 10h;After cooling, with water and ethyl alcohol cleaning sample, and at 60-80 DEG C vacuum degree be less than- 0.07MPa dries 12h, and Zn-Co-Ni ternary metal sulfide nanometer sheet is made.
3. the preparation method of electrode material according to claim 2, it is characterized in that: in step (1) b, the aqueous solution of ethyl alcohol, Water: the volume ratio of ethyl alcohol is 1:1.
CN201810979691.2A 2018-08-27 2018-08-27 A kind of preparation method of electrode material Pending CN109119258A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110415993A (en) * 2019-07-16 2019-11-05 上海应用技术大学 A kind of preparation method and applications of Mn-Co-S/Co-MOF nano material
CN114094115A (en) * 2021-10-13 2022-02-25 中国长江三峡集团有限公司 Columnar copper array current collector and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090123851A1 (en) * 2007-11-14 2009-05-14 Sony Corporation Positive-electrode active material for lithium-ion secondary battery, positive electrode, manufacturing method thereof, and lithium-ion secondary battery
CN106920698A (en) * 2017-03-24 2017-07-04 东华大学 A kind of ultracapacitor NixCo3‑xS4/NiCo2O4Composite and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090123851A1 (en) * 2007-11-14 2009-05-14 Sony Corporation Positive-electrode active material for lithium-ion secondary battery, positive electrode, manufacturing method thereof, and lithium-ion secondary battery
CN106920698A (en) * 2017-03-24 2017-07-04 东华大学 A kind of ultracapacitor NixCo3‑xS4/NiCo2O4Composite and preparation method thereof

Non-Patent Citations (1)

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Title
V. VIGNESH ETC.: "Spherical-Like Ball-by-Ball Architecture of Ni-Co-Zn-S Electrodes for Electrochemical Energy Storage Application in Supercapacitors", 《ECS》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110415993A (en) * 2019-07-16 2019-11-05 上海应用技术大学 A kind of preparation method and applications of Mn-Co-S/Co-MOF nano material
CN110415993B (en) * 2019-07-16 2021-09-28 上海应用技术大学 Preparation method and application of Mn-Co-S/Co-MOF nano material
CN114094115A (en) * 2021-10-13 2022-02-25 中国长江三峡集团有限公司 Columnar copper array current collector and preparation method and application thereof

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Application publication date: 20190101