Non-noble metal amorphous water electrolysis anode material and in-situ growth preparation method thereof

A technology of anode material and non-precious metal, which is applied in the field of electrolyzed water anode material and its preparation, can solve the problems of reduced catalytic performance, reduced lifespan, and easy separation, and achieves low preparation cost, good conductivity, and is conducive to catalyzing water The effect of oxidation

Pending Publication Date: 2020-04-21
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrode materials obtained by these methods have obvious interfaces between the substrate and the surface, and are prone to separation during use, resulting in a decrease in catalytic performance and a decrease in service life.

Method used

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  • Non-noble metal amorphous water electrolysis anode material and in-situ growth preparation method thereof
  • Non-noble metal amorphous water electrolysis anode material and in-situ growth preparation method thereof
  • Non-noble metal amorphous water electrolysis anode material and in-situ growth preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] an amorphous Ni 40 Fe 40 B 20 Water electrolysis anode material

[0057] 1), according to Ni 40 Fe 40 B 20 The nominal composition is to weigh Fe, Co, Ni, and B elements respectively. The mass percentage purity of Fe and Ni elements is not less than 99.95%, and the mass percentage purity of B element is not less than 99.9%;

[0058] 2), melting alloy ingot;

[0059] Put the weighed Fe, Ni, and B elements into a vacuum arc melting furnace for melting to obtain Ni 40 Fe 40 B 20 alloy ingot.

[0060] Melting parameters: before smelting, fill with 0.04Mpa mass percentage 99.999% argon as a protective atmosphere;

[0061] The required vacuum is 3.5×10 -3 Pa;

[0062] The melting current is 150A;

[0063] Melting time: 2-3 minutes for each smelting, 5-10 times of smelting;

[0064] 3), the single-roll quenching method prepares the amorphous strip;

[0065] The alloy ingot is mechanically broken into small pieces with a diameter of no more than 1cm, put into a q...

Embodiment 2

[0083] an amorphous Ni 60 Fe 20 B 20 Water electrolysis anode material

[0084] 1), according to Ni 60 Fe 20 B 20 The nominal composition is to weigh Fe, Ni, and B elements respectively. The mass percentage purity of Fe and Ni elements is not less than 99.95%, and the mass percentage purity of B element is not less than 99.9%;

[0085] 2), melting alloy ingot;

[0086] Put the weighed Fe, Ni, and B elements into a vacuum arc melting furnace for melting to obtain Ni 60 Fe 20 B 20 alloy ingot.

[0087] Melting parameters: before smelting, fill with 0.04Mpa mass percentage 99.999% argon as a protective atmosphere;

[0088] The required vacuum degree is 3.3×10 -3 Pa;

[0089] The melting current is 130A;

[0090] Melting time: 2-3 minutes for each smelting, 5-10 times of smelting;

[0091] 3), the single-roll quenching method prepares the amorphous strip;

[0092] The alloy ingot is mechanically broken into small pieces with a diameter of no more than 1cm, put into ...

Embodiment 3

[0110] An amorphous (NiFeCo) 80 B 20 Water electrolysis anode material

[0111] 1), according to (NiFeCo) 80 B 20 The nominal composition is to weigh Fe, Ni, Co, and B elements respectively. The mass percentage purity of Fe, Ni, and Co elements is not less than 99.95%, and the mass percentage purity of B element is not less than 99.9%;

[0112] 2), melting alloy ingot;

[0113] Put the weighed Fe, Ni, and B elements into a vacuum arc melting furnace for smelting to obtain (NiFeCo) 80 B 20 alloy ingot.

[0114] Melting parameters: before smelting, fill with 0.04Mpa mass percentage 99.999% argon as a protective atmosphere;

[0115] The required vacuum degree is 3.2×10 -3 Pa;

[0116] The melting current is 140A;

[0117] Melting time: 2-3 minutes for each smelting, 5-10 times of smelting;

[0118] 3), the single-roll quenching method prepares the amorphous strip;

[0119] The alloy ingot is mechanically broken into small pieces with a diameter of no more than 1 cm, p...

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Abstract

The invention discloses a non-noble metal amorphous water electrolysis anode material and an in-situ growth preparation method thereof. The non-noble metal water electrolysis anode material is (FeaCobNic)xMy, the atomic percent of a+b+c is equal to 1, 0.1<=a<=0.9, 0<=b<=0.9, 0.1<=c<=0.9, 80<=x<=90, 10<=y<=20, and M is one or more of B, S, P and Si, the (FeaCobNic)xMy water electrolysis anode material is an amorphous alloy thin strip prepared by adopting electric arc melting and vacuum induction melting melt-spinning, and the amorphous alloy thin strip is used as a precursor and an electrochemical cyclic voltammetry is adopted to perform in-situ growth on surface metal to obtain a nickel-iron-cobalt oxide state substance, thereby preparing an efficient in-situ growth non-noble metal water electrolysis catalyst. The method is simple in process, low in preparation cost, easy to operate, stable in performance and convenient for large-scale production.

Description

technical field [0001] The invention provides an electrolyzed water anode material and a preparation method thereof, in particular a non-precious metal Fe a co b Ni c ) x m y The invention relates to an amorphous alloy electrolyzed water anode material and an in-situ growth preparation method to obtain high catalytic performance and apply it to electrolyzed water. Background technique [0002] Energy and the environment are the most important issues of our time. The global demand for energy has been growing rapidly and is expected to triple within the next 15 years. But so far, most of the energy consumed comes from fossil fuels with limited and unsustainable reserves. In the development of many renewable and clean energy sources, including wind energy, geothermal energy, solar energy, etc., it has been favored by people. Hydrogen energy is recognized as an excellent renewable and clean energy by human beings, and it can achieve efficient mutual conversion with electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/04C25D7/06C25D11/34B22D11/06C25B1/04
CPCB22D11/0611C25B1/04C25D7/0614C25D11/34C25B11/051C25B11/061C25B11/091Y02E60/36
Inventor 朱正旺李海龙张海峰付华萌张宏伟李宏王爱民李正坤张龙
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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