Preparation method based on ptaufe/c composite hydrogen evolution catalyst in sulfuric acid electrolyte

Abstract

This article discloses a method in sulfuric acid (H 2 SO 4 ) in the electrolyte, a method for preparing a PtAuFe / C composite hydrogen evolution catalyst, including the following steps: 1) Take a certain amount of chloroplatinic acid (H 2 PPML 6 ) solution, chloroauric acid (HAuCl 4 ) solution with ferrous chloride (FeCl 2 ), mix, and then add excess 0.5 mol·L ‑1 Sodium borohydride (NaBH 4 ) solution, let it stand for several hours to allow complete reaction, and prepare a PtAuFe mixed solution; 2) Ultrasonicize the mixed solution; 3) Put the mixed solution into a centrifuge tube for centrifugation; 4) Place the centrifuged product in an oven for drying Finally, PtAuFe metal powder is obtained; 5) Ultrasonically mix the PtAuFe powder and a certain amount of carbon powder in isopropyl alcohol to obtain a PtAuFe / C hydrogen evolution catalyst. The PtAuFe / C hydrogen evolution catalyst prepared by the invention has good electrochemical activity and stability, which can not only improve the efficiency of the hydrogen evolution reaction, but also greatly extend the cycle service life.

Description

technical field [0001] The present invention relates to a kind of preparation method of PtAuFe / C hydrogen evolution catalyst, particularly a kind of in sulfuric acid (H 2 SO 4 ) Preparation method of PtAuFe / C hydrogen evolution catalyst in electrolyte. Background technique [0002] As one of the three pillars of modern society, energy plays an important role in social development. However, with the development of the economy, the extensive use of fossil fuels by human beings not only results in the reduction of non-renewable energy until it is exhausted. Moreover, in the process of burning fossil fuels, a large amount of polluting gases, such as NO x , CO x , SO x The formation of acid rain and the greenhouse effect endanger the environment. Therefore, people gradually realize the importance of finding clean energy. The clean energy discovered in recent years mainly includes solar energy, hydrogen energy, wind energy, ocean energy, and geothermal energy. Among them, ...

AI Technical Summary

Problems solved by technology

However, in the process of electrolyzing water, due to the existence of overpotential, the voltage required for electrolysis will increase, which will greatly increase the required energy consumption. Therefore, it is very necessary to study high-performance catalysts that can significantly reduce overpotential.

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