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Micron nickel phosphide electro-catalytic material used for hydrogen evolution/oxygen evolution double functions

A catalytic material and dual-function technology, applied in physical/chemical process catalysts, chemical instruments and methods, circuits, etc., can solve environmental pollution and other problems, and achieve the effect of controlling the release rate

Inactive Publication Date: 2016-08-17
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of these preparation methods need to be carried out under high temperature and high pressure, requiring strict experimental conditions and equipment, and the selected phosphorus source is highly toxic, causing serious pollution to the environment

Method used

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  • Micron nickel phosphide electro-catalytic material used for hydrogen evolution/oxygen evolution double functions
  • Micron nickel phosphide electro-catalytic material used for hydrogen evolution/oxygen evolution double functions
  • Micron nickel phosphide electro-catalytic material used for hydrogen evolution/oxygen evolution double functions

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Embodiment 1

[0022] (1) Add nickel acetate tetrahydrate (0.13g, 0.5mmol), pyromellitic acid (0.13g, 0.5mmol), NaOH (0.04g, 1.0mmol) into 8.0mL deionized water, stir well and place in the reaction The kettle was sealed, hydrothermally reacted at 160°C for 6 days, cooled naturally to room temperature, filtered, washed with water, and dried to obtain 0.62 g of green powder, which was the precursor of the nickel complex.

[0023] (2) Under nitrogen protection, weigh 0.5g (2.33mmol) of nickel complex as a precursor, 2.68g (10.65mmol) of octadecene as a surfactant, and take oleylamine (7.0mL, 21.3mmol) as a high boiling point The solvent was placed in a four-cornered flask, and the temperature was raised to 120°C under stirring. Continue to blow nitrogen and stir for 30 minutes to remove the oxygen in the solvent. Quickly inject 2mL of trioctylphosphine through a syringe, control the reaction temperature at 220°C, and keep warm for 110°C. minute. Then it was lowered to room temperature, and the...

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Abstract

The invention provides a micron nickel phosphide electro-catalytic material used for hydrogen evolution / oxygen evolution double functions and belongs to the technical field of novel materials. A nickel compound is used as a precursor and a high-boiling-point organic matter is used as a solvent; the material has the characteristics of controlling the synthesis of micron nickel phosphide materials on a microcosmic level and the like; preparation conditions are rapid and moderate; a generated compound of Ni2P and Ni5P4 is of micron-grade nickel phosphide particles and the grain diameter is 5-10 microns; the prepared material can be used for electro-catalytic hydrogen evolution and oxygen evolution double functions and has a good electro-catalytic property; and the material has important meanings on industrial production of the micron-scale nickel phosphide material and application and development of the material, and has a relatively wide application range.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a micron nickel phosphide electrocatalytic material for hydrogen evolution / oxygen evolution dual functions and a preparation method thereof. Background technique [0002] The development of new energy is currently a research hotspot for scientists. Hydrogen energy is a highly efficient and clean renewable energy. The only product after combustion is water. It is considered to be the most potential energy carrier in the future and the best substitute for traditional fossil energy. The development and use of water electrolysis to produce hydrogen and fuel cells has been the focus of many researchers [W.T.Hong, M.Risch, K.A.Stoerzinger, A.Grimaud, J.Suntivich and Y.Shao-Horn, Toward the rational design of non-precious transition metal oxides for oxygen electrocatalysis, Energy Environ. Sci., 2015, 8, 1404-1427]. Hydrogen production by water splitting has become a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/185H01M4/90
CPCB01J27/1853H01M4/90Y02E60/50
Inventor 袁雪林欢范卫东辛雪莲董斌张亮亮其他发明人请求不公开姓名
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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