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Electrode material with crystalline-amorphous concerted catalytic interface and preparation method thereof

A technology of synergistic catalysis and electrode materials, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of high activity, narrow, electrocatalyst limitation, etc., and achieve the effect of simple preparation process, convenient operation and good stability

Active Publication Date: 2021-11-19
YANAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide an electrode material with a crystalline-amorphous synergistic catalytic interface to solve the limitations of electrocatalysts used in the production of hydrogen from seawater Issues with high activity in very narrow pH ranges or in highly corrosive acidic / alkaline conditions or where large voltages are required

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  • Electrode material with crystalline-amorphous concerted catalytic interface and preparation method thereof

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Embodiment 1

[0049] A preparation method of an electrode material having a crystalline-amorphous synergistic catalytic interface of the present invention is specifically implemented according to the following steps:

[0050] Step 1. Preparation of in situ grown crystalline Ni(OH) on Ti mesh 2 Nanosheet precursor; in situ growth of crystalline Ni(OH) on titanium mesh 2 Nanosheet precursors are as follows:

[0051] Step 1.1, cut two pieces of titanium mesh and put it into a hydrochloric acid solution with a concentration of 1mol / L for ultrasonic treatment for 15 minutes, wash it with absolute ethanol and ultrapure water several times, and dry it for later use;

[0052] Step 1.2, measure Ni(NO 3 ) 2 ·6H 2 O, CO (NH 2 ) 2 and NH 4 F, and dissolve the three in ultrapure water, and carry out constant temperature magnetic stirring until light green transparent solution;

[0053] Step 1.3, transfer the light green transparent solution obtained in step 1.2 into the reaction kettle, and then...

Embodiment 2

[0058] A preparation method of an electrode material having a crystalline-amorphous synergistic catalytic interface of the present invention is specifically implemented according to the following steps:

[0059] Step 1. Preparation of in situ grown crystalline Ni(OH) on Ti mesh 2 Nanosheet precursor; in situ growth of crystalline Ni(OH) on titanium mesh 2 Nanosheet precursors are as follows:

[0060] Step 1.1, cut two pieces of titanium mesh and put it into a hydrochloric acid solution with a concentration of 3mol / L for ultrasonic treatment for 15min-30min, wash it several times with absolute ethanol and ultrapure water, and dry it for later use;

[0061] Step 1.2, measure Ni(NO 3 ) 2 ·6H 2 O, CO (NH 2 ) 2 and NH 4 F, and dissolve the three in ultrapure water, and carry out constant temperature magnetic stirring until light green transparent solution;

[0062] Step 1.3, transfer the light green transparent solution obtained in step 1.2 into the reaction kettle, and the...

Embodiment 3

[0067] A preparation method of an electrode material having a crystalline-amorphous synergistic catalytic interface of the present invention is specifically implemented according to the following steps:

[0068] Step 1. Preparation of in situ grown crystalline Ni(OH) on Ti mesh 2 Nanosheet precursor; in situ growth of crystalline Ni(OH) on titanium mesh 2 Nanosheet precursors are as follows:

[0069] Step 1.1, cut two pieces of titanium mesh and put it into a hydrochloric acid solution with a concentration of 1mol / L-5mol / L for ultrasonic treatment for 15min-30min, wash it several times with absolute ethanol and ultrapure water, and dry it for later use;

[0070] Step 1.2, measure Ni(NO 3 ) 2 ·6H 2 O, CO (NH 2 ) 2 and NH 4 F, and dissolve the three in ultrapure water, and carry out constant temperature magnetic stirring until light green transparent solution;

[0071] Step 1.3, transfer the light green transparent solution obtained in step 1.2 into the reaction kettle, ...

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Abstract

The invention discloses an electrode material with a crystalline-amorphous concerted catalytic interface. The electrode material comprises crystalline-state Ni (OH) 2 and amorphous-state NiMoS, wherein the amorphous-state NiMoS is obtained by converting Ni (OH) 2, and the concerted catalytic interface is formed between the crystalline-state Ni (OH) 2 and the amorphous-state NiMoS. The invention further discloses a preparation method of the electrode material with the crystalline-amorphous concerted catalytic interface. The preparation method is specifically implemented according to the steps of 1, preparing an in-situ growth crystalline Ni (OH) 2 nanosheet precursor on a titanium mesh; and 2, carrying out molybdenum vulcanization treatment on the crystalline Ni (OH) 2 nanosheet precursor obtained in the step 1 to prepare the crystalline Ni (OH) 2 and amorphous NiMoS electrode material with the concerted catalytic interface.

Description

technical field [0001] The invention belongs to the technical field of electrode materials and industrial catalysis, and in particular relates to an electrode material with a crystalline-amorphous synergistic catalytic interface, and also relates to a preparation method for an electrode material with a crystalline-amorphous synergistic catalytic interface. Background technique [0002] The consumption of fossil fuels has brought about serious energy and environmental crises. In order to solve this problem, people have invested a lot of research on the utilization of clean energy such as wind energy, geothermal energy, solar energy and hydrogen energy. Among them, hydrogen energy has attracted increasing attention due to its abundance and high energy density. Electrochemical water splitting is considered to be a promising hydrogen production method due to the advantages of equipment safety, environmental friendliness, and abundant raw materials. [0003] Developing highly e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/091C25B11/031C25B11/052C25B11/063C25B1/04
CPCC25B11/091C25B11/031C25B11/052C25B11/063C25B1/04Y02E60/36Y02P20/133
Inventor 杨春明周立海胡玉娟卞玉洁任宇飞张瑞娜王传涛闫挺甄延忠付峰
Owner YANAN UNIV
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