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Preparation method of transition metal sulfide for supercapacitor electrode material

A technology of supercapacitors and transition metals, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of complicated operation steps, difficult control of components, low capacitance, etc., and achieves controllable preparation conditions, The effect of mild reaction, non-toxicity and low internal resistance

Pending Publication Date: 2022-05-31
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a preparation method of transition metal sulfides for supercapacitor electrode materials. Difficult to control, complex and cumbersome operation steps, environmental pollution and other issues

Method used

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  • Preparation method of transition metal sulfide for supercapacitor electrode material
  • Preparation method of transition metal sulfide for supercapacitor electrode material
  • Preparation method of transition metal sulfide for supercapacitor electrode material

Examples

Experimental program
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Effect test

Embodiment 1

[0031] (1) The reactant precursor 2mmol CuCl 2 2H 2 O, 1mmol MnCl 2 4H 2 O, 1mmol SnCl 4 4H 2 0, 4mmol L-cysteine ​​were added to the polytetrafluoroethylene lining of the reaction kettle in turn, and then 100mL N,N-dimethylformamide was added to it to prepare a precursor solution, and magnetically stirred at a speed of 1500r / min Precursor solution for 30 minutes to fully dissolve it. Then seal the polytetrafluoroethylene liner containing the uniformly mixed precursor solution into the supporting reaction kettle, and put the reaction kettle into a 200°C oven for 18 hours;

[0032] (2) Take out the reaction kettle after the reaction of the materials in the reaction kettle is completed, discard the upper layer liquid after natural cooling to room temperature, and collect the black target product at the bottom of the reaction kettle;

[0033] (3) The target product is alternately washed with deionized water and absolute ethanol for 3 times, and the supernatant is discarded ...

Embodiment 2

[0051] (1) The reactant precursor 1.8mmol CuCl 2 2H 2 O, 0.8mmol MnCl 2 4H 2 O, 0.8mmolSnCl 4 4H 2 O, 3.8mmol L-cysteine ​​were added to the polytetrafluoroethylene lining of the reactor in turn, and then 100mL N,N-dimethylformamide was added to it to prepare a precursor solution, and magnetically stirred at a speed of 800r / min The precursor solution was allowed to fully dissolve for 50 minutes. Finally, seal the polytetrafluoroethylene liner containing the uniformly mixed precursor solution and put it into the supporting reaction kettle, and put the reaction kettle into a 200°C oven for 24 hours;

[0052] (2) Take out the reaction kettle after the reaction of the materials in the reaction kettle is completed, discard the upper layer liquid after natural cooling to room temperature, and collect the black target product at the bottom of the reaction kettle;

[0053] (3) The target product is alternately washed with deionized water and absolute ethanol for 3 times, and the...

Embodiment 3

[0056] (1) The reactant precursor 2.2mmol CuCl 2 2H 2 O, 1.2mmol MnCl 2 4H 2 O, 1.2mmolSnCl 4 4H 2 O and 4.2mmol L-cysteine ​​were added to the polytetrafluoroethylene lining of the reaction kettle in turn, and then 100mL N,N-dimethylformamide was added to it to prepare a precursor solution, and magnetically stirred at a speed of 1200r / min The precursor solution was allowed to fully dissolve for 40 minutes. Finally, seal the polytetrafluoroethylene liner containing the uniformly mixed precursor solution and put it into the matching reaction kettle, and put the reaction kettle into a 200°C oven for 30 hours;

[0057] (2) Take out the reaction kettle after the reaction of the materials in the reaction kettle is completed, discard the upper layer liquid after natural cooling to room temperature, and collect the black target product at the bottom of the reaction kettle;

[0058] (3) The target product is alternately washed with deionized water and dehydrated ethanol 3 times ...

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Abstract

A preparation method of a transition metal sulfide for a supercapacitor electrode material comprises the following specific steps: taking copper chloride dehydrate, manganese chloride tetrahydrate, tin chloride pentahydrate and sulfide as reactant precursors, adding an organic solvent into the reactant precursors, fully dissolving, putting into a reaction kettle, carrying out high-temperature solvothermal reaction for a certain time, filtering, washing, and drying to obtain the transition metal sulfide. And after the materials in the reaction kettle react, naturally cooling to room temperature, discarding supernatant, collecting a target product at the bottom of the reaction kettle, washing with deionized water and absolute ethyl alcohol for multiple times, centrifuging, and drying in vacuum to obtain the transition metal sulfide Cu2MnSnS4 material. The one-step solvothermal method is simple, convenient, economical and environment-friendly, and the prepared transition metal sulfide Cu2MnSnS4 material has a unique microstructure structure and excellent electrochemical performance, can be used as an optimal economical and efficient electrode material for energy storage devices such as supercapacitors and the like, and has huge development prospects and application potential.

Description

technical field [0001] The invention relates to a preparation method of a transition metal sulfide used as an electrode material for a supercapacitor. Background technique [0002] In recent years, with the excessive consumption of fossil fuels and the increasingly urgent demand for energy, the slow regeneration of traditional energy sources has been unable to meet human needs. Therefore, the development of new environmentally friendly and efficient energy sources has been regarded as an important solution. Supercapacitors have been regarded as a reliable energy storage device with research prospects due to their excellent charge storage performance, long cycle life, low cost, and low pollution. Among the previous electrode materials, transition metal oxides / hydroxides have the problems of low conductivity and poor stability. However, transition metal sulfides not only have abundant transition states, low resistivity, but also have excellent ion transport properties and suf...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/86
CPCH01G11/24H01G11/30H01G11/86Y02E60/13
Inventor 李现府胡露露高建纲吴问睿孟轩昂蒋潘博忻志凯凌远志
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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