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Nickel-molybdenum-copper ternary metal phosphide as well as preparation method and application thereof

A ternary metal and phosphide technology, applied in the direction of phosphides, phosphorus compounds, chemical instruments and methods, etc., can solve the problems of unpopularity, high cost, and low reserves, etc., and achieve excellent stability, low cost, and simple operation Effect

Pending Publication Date: 2021-09-24
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Platinum-based materials are by far the most effective, but cannot be widely used due to high cost and low reserves

Method used

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  • Nickel-molybdenum-copper ternary metal phosphide as well as preparation method and application thereof
  • Nickel-molybdenum-copper ternary metal phosphide as well as preparation method and application thereof
  • Nickel-molybdenum-copper ternary metal phosphide as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In this embodiment, a method for preparing a nickel-molybdenum-copper ternary metal phosphide comprises the following steps:

[0035] (1) Put nickel foam with a size of 20mm×30mm into 20mL of acetone and ultrasonically clean it for 10 minutes, then ultrasonically wash it with 20mL of 3M hydrochloric acid for 10 minutes; then use ultrapure water and absolute ethanol to clean the surface successively. The foamed nickel is placed in an oven at 60°C until dry;

[0036] (2) 8mmol urea, 6mmol NH 4 F, 1mmol Ni(NO 3 ) 2 ·6H 2 O and 1mmol Cu(NO 3 ) 2 ·3H 2 O was dissolved in 30mL deionized water; a mixed solution was obtained; the mixed solution and the nickel foam obtained in the step (1) were moved into a 50mL reaction kettle, dried in a drying oven, and kept at 120°C for 6 hours ; Then the dried material was washed three times with deionized water and ethanol respectively, and the obtained clean material was dried in a vacuum oven at 60° C. for 12 hours;

[0037] (3) ...

Embodiment 2

[0040] This embodiment is basically the same as Embodiment 1, especially in that:

[0041] In this embodiment, a method for preparing a nickel-molybdenum-copper ternary metal phosphide comprises the following steps:

[0042] (1) Put nickel foam with a size of 20mm×30mm into 20mL of acetone and ultrasonically clean it for 10 minutes, then ultrasonically wash it with 20mL of 3M hydrochloric acid for 10 minutes; then use ultrapure water and absolute ethanol to clean the surface successively. The foamed nickel is placed in an oven at 60°C until dry;

[0043] (2) 8mmol urea, 6mmol NH 4 F, 0.67mmol Ni(NO 3 ) 2 ·6H 2 O and 1.33mmol Cu(NO 3 ) 2 ·3H 2 O was dissolved in 30mL deionized water; a mixed solution was obtained; the mixed solution and the nickel foam obtained in the step (1) were moved into a 50mL reaction kettle, dried in a drying oven, and kept at 120°C for 6 hours ; Then the dried material was washed three times with deionized water and ethanol respectively, and the ...

Embodiment 3

[0047] This embodiment is basically the same as the above-mentioned embodiment, and the special features are:

[0048] In this embodiment, a method for preparing a nickel-molybdenum-copper ternary metal phosphide comprises the following steps:

[0049] (1) Put nickel foam with a size of 20mm×30mm into 20mL of acetone and ultrasonically clean it for 10 minutes, then ultrasonically wash it with 20mL of 3M hydrochloric acid for 10 minutes; then use ultrapure water and absolute ethanol to clean the surface successively. The foamed nickel is placed in an oven at 60°C until dry;

[0050] (2) 8mmol urea, 6mmol NH 4 F, 1.33mmol Ni(NO 3 ) 2 ·6H 2 O and 0.67mmol Cu(NO 3 ) 2 ·3H 2 O was dissolved in 30mL deionized water; a mixed solution was obtained; the mixed solution and the nickel foam obtained in the step (1) were moved into a 50mL reaction kettle, dried in a drying oven, and kept at 120°C for 6 hours ; Then the dried material was washed three times with deionized water and ...

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Abstract

The invention discloses a nickel-molybdenum-copper ternary metal phosphide as well as a preparation method and application thereof, and is applied to the technical field of water electrolysis hydrogen production. Metal Ni is adopted as a basis, Cu element and Mo element with good hydrogen evolution performance are selected to prepare the ternary composite metal material, and then the catalytic performance of the ternary composite metal material is further improved through phosphorization. Foamed nickel is used as a substrate, and the catalyst grows on the foamed nickel substrate in situ through a hydrothermal method, so that the catalyst has excellent conductivity. The prepared catalyst has excellent hydrogen evolution catalytic activity and stability. The raw materials are rich in reserves and low in price. Meanwhile, the synthetic method used in the invention is simple to operate and easy to control, and can realize large-scale production.

Description

technical field [0001] The invention relates to a preparation method of a novel nickel-molybdenum-copper ternary metal phosphide material, which is applied in the technical field of hydrogen production by electrolysis of water. Background technique [0002] With the development of human society, people pay more and more attention to energy issues. Among them, fossil fuels such as oil and coal are increasingly depleted as people exploit them. Rapid growth in energy consumption is driving the development of sustainable alternative energy sources. Currently used energy can be divided into three categories. The first is fossil energy, including oil, coal, and natural gas. The second is nuclear energy, which releases energy by splitting heavy atomic nuclei or fusing light atomic nuclei. The third is renewable energy, including wind energy, solar energy, hydroelectric power generation, hydrogen energy, etc. Among them, hydrogen energy has the characteristics of high energy de...

Claims

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Application Information

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IPC IPC(8): C01B25/08C25B1/04C25B11/054C25B11/061C25B11/075
CPCC01B25/088C25B1/04C25B11/054C25B11/061C25B11/075C01P2002/72C01P2004/03Y02E60/36
Inventor 杨超周尉成旦红
Owner SHANGHAI UNIV
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