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Preparation method of Co/Ni-MoO2 composite electrolyzed water catalyst

A technology for catalyst and water electrolysis, which is applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of low catalyst yield and complex catalyst preparation methods, and achieve the effect of simple and easy-to-operate preparation methods.

Inactive Publication Date: 2018-09-04
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although there have been many papers on MoO by doping transition metals 2 There are reports on the preparation of electrolytic water catalysts with excellent performance, but the preparation methods of related catalysts are often complicated and the catalyst yields are often low.

Method used

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  • Preparation method of Co/Ni-MoO2 composite electrolyzed water catalyst
  • Preparation method of Co/Ni-MoO2 composite electrolyzed water catalyst
  • Preparation method of Co/Ni-MoO2 composite electrolyzed water catalyst

Examples

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Effect test

Embodiment 1

[0019] Firstly, 2.0 mmol each of cobalt nitrate, nickel nitrate, ammonium molybdate, and F127 were weighed in a mortar, mixed and ground for 20 minutes at room temperature to obtain a dough-like precursor. The above precursor was transferred to a muffle furnace, heated at 70 degrees Celsius for 5 hours in an air atmosphere, then raised to 300 degrees Celsius for 1 hour, and then cooled to room temperature naturally to obtain Co / Ni-MoO 2 Composite water electrolysis hydrogen production catalyst.

Embodiment 2

[0021] Firstly, 2.0 mmol each of cobalt nitrate, nickel nitrate, ammonium molybdate, and F127 were weighed in a mortar, mixed and ground for 20 minutes at room temperature to obtain a dough-like precursor. Transfer the above precursor to a muffle furnace, and heat it at 80 degrees Celsius for 8 hours in an air atmosphere, then raise the temperature to 300 degrees Celsius for 1 hour and then cool it down to room temperature naturally to obtain Co / Ni-MoO 2 Composite water electrolysis hydrogen production catalyst.

Embodiment 3

[0023] Firstly, 3.0 mmol each of cobalt nitrate, nickel nitrate, ammonium molybdate and F127 were weighed in a mortar, mixed and ground at room temperature for 20 minutes to prepare a dough-like precursor. The above precursor was transferred to a muffle furnace, heated at 70 degrees Celsius for 8 hours in an air atmosphere, then raised to 300 degrees Celsius for 1 hour and then cooled to room temperature naturally to obtain Co / Ni-MoO 2 Composite water electrolysis hydrogen production catalyst.

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Abstract

The invention relates to a Co / Ni-MoO2 composite electrolyzed water catalyst and a preparation method thereof, which belong to the technical field of preparation of an inorganic nano-material. According to the invention, four substances such as cobalt nitrate, nickel nitrate, ammonium molybdate and F127 are taken as precursors, the substances are ground, mixed and heated to prepare the Co / Ni-MoO2 catalyst. The preparation method comprises the following steps: taking cobalt nitrate, nickel nitrate, ammonium molybdate and F127 as reactants, and the reactants are subjected to mixing and grinding to obtain the dough-state precursor; and the precursor is respectively and successively heated at the temperature of 70 DEG C and 300 DEG C to obtain the Co / Ni-MoO2 composite catalyst.

Description

technical field [0001] The present invention relates to a kind of Co / Ni-MoO 2 A composite electrolyzed water hydrogen production catalyst and a preparation method thereof belong to the technical field of inorganic nanometer materials. Background technique [0002] With the continuous consumption of traditional fossil fuels and the increasing environmental pollution, renewable clean energy has received more and more attention. Hydrogen energy has the characteristics of high energy density, cleanness and environmental protection, and is considered to be an excellent substitute for fossil fuels. Hydrogen can be conveniently prepared by electrolyzing water to meet the needs of practical applications. However, since the water splitting reaction is a non-spontaneous reaction, its Gibbs free energy becomes as high as 237kJ / mol, which leads to a large power consumption in the process of electrolyzing water. Platinum group metals are often used as catalysts for water electrolysis ...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J35/00B01J37/04B01J37/08C25B1/04C25B11/06
CPCC25B1/04B01J23/883B01J37/04B01J37/082C25B11/073B01J35/33Y02E60/36
Inventor 陈志明杨晓东王晓梅徐波李村成
Owner UNIV OF JINAN
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