Wafer-level GaN-based nanowires photocatalyst for water splitting  

作　　者：Kun Wang Jiaxuan Qiu Zefei Wu Yang Liu Yongqi Liu Xiangpeng Chen Bao Zang Jianmei Chen Yunchao Lei Longlu Wang Qiang Zhao 

机构地区：[1]College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology),Nanjing University of Posts&Telecommunications(NJUPT),Nanjing 210023,China

出　　处：《Chinese Chemical Letters》2025年第3期27-36,共10页中国化学快报(英文版)

基　　金：supported by the Natural Science Foundation of China(No.51902101,22479079);Innovation Support Programme(Soft Science Research)Project Achievements of Jiangsu Province(BK20231514);the Youth Natural Science Foundation of Hunan Province(No.2021JJ40044);Natural Science Foundation of Jiangsu Province(No.BK20201381);Science Foundation of Nanjing University of Posts and Telecommunications(Nos.NY219144,NY221046);the National College Student Innovation and Entrepre-neurship Training Program(No.202210293083Y).

摘　　要：In recent years,the development of wafer-level GaN nanowires photocatalyst loaded onto silicon substrates has progressed rapidly depending on its simplicity of instrumentation,collection and separation from the water.Accordingly,the wafer-level GaN-based nanowires(GaN NWs)photocatalyst can be a fabulous candidate for the application in the field of photocatalytic hydrogen evolution reaction(PHER)and provides a novel route to address the environmental and energy crisis.Herein,a range of innovative strategies to improve the performance of GaN NWs photocatalyst are systematically summarized.Then,the solar-to-hydrogen conversion efficiency,the characteristics of GaN NWs system,the cost of the origin material required,as well as the stability,activity and the corrosion resistance to seawater are discussed in detail as some of the essential conditions for advancing its large-scale industry-friendly application.Last but not least,we provide the potential application of this system for splitting seawater to produce hydrogen and point out the direction for overcoming the barriers to future industrial-scale implementation.

关 键 词：Wafer-level GaN-based nanowires PHOTOCATALYST Photocatalytic hydrogen evolution reaction Solar-to-hydrogen conversion efficiency Large-scale industry-friendly application Seawater splitting 

分 类 号：O643.3[理学—物理化学] O643.36[理学—化学]