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Fiber-bundle-shaped nickel-iron-sulfur-selenium compound and preparation method thereof

A technology of selenium compounds and fiber bundles, which can be used in electrodes, electrolysis processes, electrolysis components, etc., and can solve problems such as mediocre morphology and weak activity.

Active Publication Date: 2022-04-15
TAIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has a certain catalytic activity for hydrogen evolution reaction, its activity is weak and its shape is mediocre. The catalytic activity needs to be further improved to meet the requirements of production.

Method used

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  • Fiber-bundle-shaped nickel-iron-sulfur-selenium compound and preparation method thereof
  • Fiber-bundle-shaped nickel-iron-sulfur-selenium compound and preparation method thereof
  • Fiber-bundle-shaped nickel-iron-sulfur-selenium compound and preparation method thereof

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Embodiment Construction

[0015] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0016] The specific steps of the present embodiment are as follows: intercept a piece of nickel foam with a size of 2 times 2 square centimeters; immerse the cut nickel foam in 12 moles per liter of concentrated hydrochloric acid for ultrasonic cleaning for ten minutes, then immerse in acetone for five minutes, Then immerse in ethanol and ultrasonically clean for five minutes; put the foamed nickel after cleaning into a vacuum drying oven and dry for 30 minutes at a temperature of 40 degrees Celsius; weigh 0.2 millimoles of selenium powder, 3.8 millimoles of sulfur powder, and 10 milliliters of hydrated Put hydrazine into a beaker, and use a temperature-controllable magnetic stirrer to control the temperature at 40 degrees Celsius and stir until the powder dissolves; add 20 ml of N,N-dimethylformamide to the beaker, add 0.3 mmol of iron powder, Stir ...

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Abstract

The invention discloses a nickel-iron-sulfur-selenium compound which has a fiber bundle shape, the diameter of a nanofiber is 200-500 nanometers, and the nickel-iron-sulfur-selenium compound has excellent electro-catalytic hydrogen evolution performance. The invention further discloses a method for preparing the fiber bundle-shaped nickel-iron-sulfur-selenium compound. The method comprises the steps of foamed nickel interception, cleaning and drying, doping treatment, hydrothermal reaction and the like.

Description

technical field [0001] The invention relates to an electrocatalyst, in particular to a fiber-bundled nickel-iron-sulfur-selenide compound and a preparation method thereof. [0002] technical background [0003] Hydrogen is an ideal clean energy, which has the advantages of high combustion calorific value and non-polluting products. Major countries and regions in the world have designated supporting policies for the development of hydrogen energy, including hydrogen production, storage, application and other related industries. [0004] Electrocatalytic water splitting is considered to be one of the most efficient ways to generate hydrogen. It alleviates discontinuities in natural energy sources such as solar, wind and tidal power. The water electrolysis reaction can be divided into two half-reactions, the hydrogen evolution reaction at the cathode and the oxygen evolution reaction at the anode. The hydrogen evolution reaction involves electron-proton coupling mass transfer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/075C25B1/04
CPCY02E60/36
Inventor 林志萍钟文武申士杰王宗鹏张欢欢陈基根
Owner TAIZHOU UNIV