Preparation method of pre-alloyed porous nickel-based electrolytic hydrogen evolution cathode material

A pre-alloyed, porous cathode technology, applied in the direction of electrodes, electrolytic processes, electrolytic components, etc., can solve the problems of poor corrosion resistance, high electrocatalytic activity, and low catalytic efficiency, and achieve short sintering cycle and electrocatalytic activity. Large, large specific surface area effect

Inactive Publication Date: 2019-01-25
XIANGTAN UNIV +1
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Problems solved by technology

The preparation process of the present invention is simple and environmentally friendly, the sintering cycle is short, the pores are easy to control, the physical and chemical properties of the porous material are stable, the specific surface area is large, and the electrocatalytic activity is large, which solves the problems of low catalytic efficiency and corrosion resistance in the hydrogen production technology by electrolysis of water. Not good, unstable hydrogen evolution and high production cost

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  • Preparation method of pre-alloyed porous nickel-based electrolytic hydrogen evolution cathode material
  • Preparation method of pre-alloyed porous nickel-based electrolytic hydrogen evolution cathode material

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Embodiment Construction

[0020] The preparation method and process performance of the present invention are illustrated by specific specific examples below, and those skilled in the art can fully understand other advantages and functions of the present invention from the content disclosed in this specification.

[0021] 1. Composition design of pre-alloyed Ni-Fe-Mo-Mn porous electrode materials

[0022] This embodiment is a kind of nickel powder, ferromolybdenum (FeMo70) powder block, ferromanganese (FeMn90) powder block is 15% of ferromolybdenum, 15% of ferromanganese, 8% of iron powder and nickel powder as the balance.

[0023] 2. Preparation of pre-alloyed Ni-Fe-Mo-Mn porous electrode material

[0024] (1) Powder preparation process: Mix nickel powder, ferromolybdenum (FeMo70), and ferromanganese (FeMn90) powders according to the mass percentage of ferromolybdenum 15%, ferromanganese 15%, iron powder 8%, and nickel powder as the balance. uniform.

[0025] (2) Atomized pulverization: ①Put the allo...

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Abstract

The invention provides a Ni-Fe-Mo-Mn porous material. The Ni-Fe-Mo-Mn porous material is prepared by the steps of accurately weighing 15 to 21 percent of ferro-molybdenum, 11 to 16 percent of ferro-manganese, 7 to 9 percent of iron powder the balance of nickel, preparing pre-alloyed powder by adopting an atomization technology and sintering in vacuum. The porous material prepared by the inventionhas abundant, uniform and controllable pores and has the advantages of large specific surface area, low hydrogen evolution overpotential, good catalytic performance, good corrosion resistance, stableworking performance, simple and environment-friendly preparation technology and the like; the preparation cost is low and the technology is simple and easy to realize. The porous material prepared bythe invention can be used as the electrolytic hydrogen evolution cathode material.

Description

technical field [0001] The invention relates to a method for preparing a porous nickel-based electrolytic hydrogen cathode material by using pre-alloyed powder, in particular to a method for preparing a pre-alloyed Ni-Fe-Mo-Mn porous nickel-based electrolytic hydrogen material. Background technique [0002] Porous materials are an emerging material system. In recent years, the development of porous materials has achieved rapid development. Its most notable feature is its regular arrangement and adjustable pore structure. , biomedicine and other fields are developing rapidly. [0003] The most common method for preparing porous materials is powder metallurgy. The porous nickel-based material manufactured by powder metallurgy has a large specific surface area, and the large surface roughness and porosity inside the electrode can greatly reduce the real current density of the electrode during the hydrogen evolution electrolysis process and reduce the energy consumption of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/03C25B11/06C22C19/03C22C1/08B22F3/11
CPCB22F3/11C22C19/03C25B1/04C25B11/031C25B11/061Y02E60/36
Inventor 肖逸锋刘文吴靓许艳飞钱锦文张乾坤杨格段震贾友禄叶明强曾毅夫
Owner XIANGTAN UNIV
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