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A preparation method of ag-supported quasi-three-dimensional structure embedded flexible electrode material

A flexible electrode and embedded technology, applied in the field of preparation of Ag-supported quasi-three-dimensional embedded flexible electrode materials, can solve problems such as hindering large-scale application, high cost and scarcity, and achieve novel morphology, simple preparation process, The effect of large specific surface area

Active Publication Date: 2020-07-10
东北大学秦皇岛分校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Ru / Ir oxides are known to be effective catalysts for OER, their high cost and scarcity hinder their large-scale application

Method used

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  • A preparation method of ag-supported quasi-three-dimensional structure embedded flexible electrode material
  • A preparation method of ag-supported quasi-three-dimensional structure embedded flexible electrode material
  • A preparation method of ag-supported quasi-three-dimensional structure embedded flexible electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Dissolve 1 mmol of silver nitrate in 10 mmol of deionized water, stir magnetically for 30 min at a stirring speed of 700 r / min, and mix well to obtain solution A.

[0034] (2) Dissolve 1 mmol of ammonia water in 20 mmol of deionized water, stir magnetically for 30 min at a stirring speed of 700 r / min, and mix well to prepare solution B.

[0035] (3) Dissolve 0.5 mmol of dodecylamine in 5 mmol of ethanol solution, and after it is completely dissolved, add 0.3 mmol of sodium dodecyl sulfate and 0.2 mmol of polyvinylpyrrolidone to prepare solution C. Mix A and B, slowly pour into solution C, and ultrasonically treat for 30 minutes; let stand to obtain solution D.

[0036] (4) 20mmol of NiCl 2 ·6H 2 O was dissolved in 40 mmol of deionized water, and 1.2 times NiCl was added 2 ·6H 2 The thiourea of ​​0 molar quantity, magnetic stirring, after mixing uniformly, makes solution E.

[0037] (5) Carbon cloth (1cm×1cm) was used as the working electrode, the Pt electrode w...

Embodiment 2

[0040] (1) Dissolve 1 mmol of silver nitrate in 20 mmol of deionized water, stir magnetically for 60 min at a stirring speed of 800 r / min, and mix well to obtain solution A.

[0041] (2) Dissolve 3 mmol of ammonia water in 20 mmol of deionized water, stir magnetically for 60 min at a stirring speed of 800 r / min, and mix well to prepare solution B.

[0042] (3) Take 1 mmol of dodecylamine and dissolve it in 5 mmol of methanol solution. After it is completely dissolved, add 0.5 mmol of sodium dodecyl sulfate and 0.5 mmol of polyvinylpyrrolidone to prepare solution C. Mix A and B, slowly pour into solution C, and ultrasonically treat for 30 minutes; let stand to obtain solution D.

[0043] (4) 50mmol of NiCl 2 ·6H 2 O was dissolved in 40 mmol of deionized water, and 1.2 times NiCl was added 2 ·6H 2 The thiourea of ​​0 molar quantity, magnetic stirring, after mixing uniformly, makes solution E.

[0044] (5) Carbon cloth (1cm×1cm) was used as the working electrode, the Pt elec...

Embodiment 3

[0048] (1) Dissolve 1 mmol of silver nitrate in 20 mmol of deionized water, stir magnetically for 30 min at a stirring speed of 800 r / min, and mix well to obtain solution A.

[0049] (2) Dissolve 2 mmol of ammonia water in 20 mmol of deionized water, stir magnetically for 30 min at a stirring speed of 800 r / min, and mix well to prepare solution B.

[0050] (3) Dissolve 0.8 mmol of dodecylamine in 5 mmol of butanol solution, and after it is completely dissolved, add 0.4 mmol of sodium dodecyl sulfate and 0.4 mmol of polyvinylpyrrolidone to prepare solution C. Mix A and B, slowly pour into solution C, and ultrasonically treat for 30 minutes; let stand to obtain solution D.

[0051] (4) 30mmol of NiCl 2 ·6H 2 O was dissolved in 40 mmol of deionized water, and 1.2 times NiCl was added 2 ·6H 2 The thiourea of ​​0 molar quantity, magnetic stirring, after mixing uniformly, makes solution E.

[0052] (5) Carbon cloth (1cm×1cm) was used as the working electrode, the Pt electrode w...

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Abstract

The invention belongs to the field of energy materials, and specifically relates to an electrochemical preparation method of an Ag-supported quasi-three-dimensional structure embedded flexible electrode material, through the control of electrodeposition time and times, forming single-layer and multi-layer Ag / Ni 3 S 2 Structure, so that it can produce the desired catalytic effect, specific surface area, and capacitance. The preparation process of the present invention is simple, and the prepared material has porous pores, large specific surface area, and novel appearance. Through the adjustment of positive and negative voltages, catalytic materials with different nanometer scales, appearances, and catalytic properties can be prepared. The catalytic material with quasi-three-dimensional scale superstructure links, and the electrode is made of carbon cloth that can be folded many times, which can be promoted as a flexible and wearable electrode material, and is widely used in energy conversion and storage, catalysis and other fields.

Description

technical field [0001] The invention belongs to the field of energy materials, and in particular relates to a preparation method of an Ag-supported quasi-three-dimensional structure embedded flexible electrode material. Background technique [0002] Finding new sustainable and clean energy is one of the important development trends in the world today. In recent years, the electrochemical oxygen evolution reaction (OER), as an important and clean route to obtain renewable energy through the water overflow process, has been one of the concerns of the scientific community. OER is the H that determines the electrolysis of water 2 and O 2 The main controlling step of , the OER becomes an obstacle to the overall reaction due to the high overpotential caused by the complex transfer process of four electrons. Although Ru / Ir oxides are known to be effective catalysts for OER, their high cost and scarcity hinder their large-scale application. Therefore, the synthesis of efficient ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/06C25B1/04C25D3/46C25D5/54C25D9/04B01J27/043
CPCC25B1/04C25D3/46C25D5/54C25D9/04B01J27/043C25B11/091B01J35/33Y02E60/36
Inventor 郭瑞刘宣文罗绍华苏娜王仁超
Owner 东北大学秦皇岛分校