Electrochemical performance of NiAl-activated cathode for green hydrogen production  

作　　者：Sofiane Latreche Naïma Boutarek-Zaourar Ismail Bencherifa Faouzi Messaoud Mohamed Trari 

机构地区：[1]Materials Technology Laboratory,Faculty of Mechanical Engineering and Process Engineering,USTHB,Algiers,Algeria [2]Department of Mechanical Engineering,University of Biskra,B.P.145,07000 Biskra,Algeria [3]Faculty of Chemistry,USTHB,BP 32,16111 Algiers,Algeria

出　　处：《Chinese Journal of Chemical Engineering》2024年第11期290-298,共9页中国化学工程学报（英文版）

摘　　要：The current study presents for the first time the preparation of a NiAl(68%(mass)Ni)intermetallic compound through the induction heating technique as a cathode for alkaline water electrolysis.The high-purity target was confirmed by X-ray diffraction and scanning electron microscopy combined with energy dispersive X-ray analysis.The chemical activation of Al from the NiAl electrode was achieved in a 25%NaOH solution at 353 K for 72 h.The performance and stability tests in a 1 mol·L^(-1)KOH solution at 298 K demonstrated that the enhancement of the hydrogen evolution reactionwas 13 times higher in the activated NiAl electrode than in the non-activated NiAl electrode.In addition,the electrochemical tests showed that the activated NiAl electrode exhibited the best hydrogen evolution reaction performance.Based on the findings,it is believed that the induction heating technique is a promising route for preparing a highly active and cost-effective NiAl electrode for green hydrogen production.

关 键 词：NiAl intermetallic compound Ni-Raney Hydrogen evolution reaction Electro-catalytic activity Water electrolysis Electrochemical impedance spectroscopy 

分 类 号：TQ116.2[化学工程—无机化工]