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Preparation method of flexible flaky MoPCoP array electrolyzed water catalyst composite material

A composite material and water electrolysis technology, which is used in the preparation of flexible sheet-like MoPCoP array catalyst composite materials for water electrolysis, can solve the problems of HER catalytic activity and stability that cannot meet actual needs, and achieve excellent catalytic performance, large active area, The effect of improving conductivity

Pending Publication Date: 2022-02-11
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a method for preparing a flexible sheet-like MoPCoP array electrolytic water catalyst composite to solve the problem that the HER catalytic activity and stability of the existing electrolytic water hydrogen evolution catalyst cannot meet the actual needs

Method used

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  • Preparation method of flexible flaky MoPCoP array electrolyzed water catalyst composite material
  • Preparation method of flexible flaky MoPCoP array electrolyzed water catalyst composite material
  • Preparation method of flexible flaky MoPCoP array electrolyzed water catalyst composite material

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Embodiment 1

[0033] This embodiment provides a preparation method of a flexible sheet-like MoPCoP array catalyst composite material for electrolysis of water, comprising the following steps:

[0034] 1), prepare Co(NO according to 3mmol:2mmmol molar volume ratio 3 ) 2 ·6H 2 O, CH 4 N 2 O and 40ml deionized water, the Co(NO 3 ) 2 ·6H 2 O was added to deionized water and sonicated for 30 min and mixed well, then added CH 4 N 2 o Continue to sonicate for a certain period of time; put the mixed solution obtained by sonication together with the carbon cloth into the reaction kettle, keep at 100°C for 12h, and vacuum dry at 60°C for 12h after washing to obtain the carbon cloth-supported cobalt nanomaterial;

[0035] 2), the carbon cloth supported cobalt nanomaterial obtained in step 2) is placed in C 4 H 6 N 2 The solution was kept at room temperature for 24 hours, and after washing, the carbon cloth-supported nanomaterials were obtained by vacuum drying at 60 °C for 12 hours;

[003...

Embodiment 2

[0039] This embodiment provides a preparation method of a flexible sheet-like MoPCoP array catalyst composite material for electrolysis of water, comprising the following steps:

[0040] Step 1): Prepare Co(NO 3 ) 2 ·6H 2 O, CH 4 N 2 O and 40ml deionized water, the Co(NO 3 ) 2 ·6H 2 O was added to deionized water and sonicated for 30 min and mixed well, then added CH 4 N 2 o Continue to sonicate for a certain period of time; put the mixed solution obtained by sonication together with the carbon cloth into the reaction kettle, keep at 90°C for 12h, and vacuum dry at 60°C for 12h after washing to obtain a carbon cloth-supported cobalt nanomaterial;

[0041] Step 2): place the carbon cloth-supported cobalt nanomaterial obtained in step 1) in C 4 H 6 N 2 The solution was kept at room temperature for 24 hours, and after washing, the carbon cloth-supported nanomaterials were obtained by vacuum drying at 60 °C for 12 hours;

[0042] Step 3): Put H 4 MoNa 2 O 6 Put it i...

Embodiment 3

[0045] This embodiment provides a preparation method of a flexible sheet-like MoPCoP array catalyst composite material for electrolysis of water, comprising the following steps:

[0046] Step 1): Prepare Co(NO 3 ) 2 ·6H 2 O, CH 4 N 2 O and 40ml deionized water, the Co(NO 3 ) 2 ·6H 2 O was added to deionized water and sonicated for 30 min and mixed well, then added CH 4 N 2 o Continue to sonicate for a certain period of time; put the mixed solution obtained by sonication together with the carbon cloth into the reaction kettle, keep at 110°C for 12h, and vacuum dry at 60°C for 12h after washing to obtain the carbon cloth-supported cobalt nanomaterial;

[0047] Step 2): place the carbon cloth-supported cobalt nanomaterial obtained in step 1) in C 4 H 6 N 2 The solution was kept at room temperature for 24 hours, and after washing, the carbon cloth-supported nanomaterials were obtained by vacuum drying at 60 °C for 12 hours;

[0048] Step 3): Put H 4 MoNa 2 O 6 Put i...

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Abstract

The invention provides a preparation method of a flexible flaky MoPCoP array electrolyzed water catalyst composite material, relates to the technical field of electrolyzed water, and solves the problem that the HER catalytic activity and stability of an existing electrolyzed water hydrogen evolution catalyst cannot meet actual requirements. The preparation method of the flexible flaky MoPCoP array electrolyzed water catalyst composite material comprises the steps of 1) preparing a carbon cloth loaded cobalt nano material, specifically, preparing Co (NO3) 2.6 H2O and CH4N2O according to a certain molar volume ratio, adding Co (NO3) 2.6 H2O into 40 ml of deionized water, carrying out ultrasonic treatment for 30 minutes, uniformly mixing, then adding CH4N2O, and continuing ultrasonic treatment for 30 minutes; and 2) putting the mixed solution obtained by ultrasonic treatment in the step 1) and carbon cloth into a reaction kettle together, and preserving heat in the reaction kettle at the heat preservation temperature of 100 DEG C for 12 hours. The prepared flexible flaky MoPCoP array electrolyzed water catalyst composite material is high in catalytic activity and good in stability, and the preparation method is simple, good in repeatability and beneficial to industrial large-scale production.

Description

technical field [0001] The invention belongs to the technical field of water electrolysis, and more particularly relates to a preparation method of a flexible sheet-shaped MoPCoP array catalyst composite material for electrolysis of water. Background technique [0002] Excessive exploitation and use of fossil energy breeds many problems that threaten human beings and other species on the earth, and how to build a low-carbon or even carbon-free new energy model is an urgent problem to be solved based on the current energy dilemma. Its high energy density and non-polluting products are regarded as an ideal clean energy. Nowadays, it is used in petrochemical, electrical, automotive and aerospace fields. Hydrogen can not only reduce the dependence on oil, but also reduce carbon emissions. Meet the characteristics of high energy. [0003] The electrolysis of water is the most effective and promising method for hydrogen evolution today, but the development of hydrogen evolution c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/065C25B11/091C25B1/04
CPCC25B11/065C25B11/091C25B1/04Y02E60/36
Inventor 魏素凤戴凌杰王国勇李恩泽
Owner CHANGCHUN UNIV OF TECH
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