Ni_(3)B modified BiVO_(4) photoanodes for enhanced photoelectrochemical water splitting:The key role of Ni_(3)B on reducing the water oxidation barrier

作     者：Kehui Xue Haifeng Zhu Xingyu Zhao Liana Alvares Rodrigues D.Amaranatha Reddy Yaping Zhang Lianqing Yu Kehui Xue;Haifeng Zhu;Xingyu Zhao;Liana Alvares Rodrigues;D.Amaranatha Reddy;Yaping Zhang;Lianqing Yu

作者机构：School of Materials Science and EngineeringChina University of Petroleum(East China)QingDao 266580China College of ScienceChina University of Petroleum(East China)QingDao 266580China Engineering School of LorenaUniversity of São PauloCEP 12602-810São PauloBrazil Indian Institute of Information Technology Design and ManufacturingKurnool 518007India 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第10期

页      面：12043-12049页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the Natural Science Foundation of Shandong Province(No.ZR2019EMQ001) Technology Project of Qingdao(No.22-3-7-cspz-9-nsh) the National Natural Science Foundation of China(No.21476262)is gratefully acknowledged 

主　　题：photoelectrochemical water splitting BiVO_(4) Ni_(3)B 

摘      要：Bismuth vanadate(BiVO_(4),BVO)as a promising photoelectrode has been received great attention for photoelectrochemical(PEC)water ***,the slow oxidation kinetics on the surface of BiVO_(4)limited the PEC water splitting ***,nickel boride(Ni_(3)B,NB)nanoparticles,generally used in electrocatalytic field material,were modified on the surface of BiVO_(4)photoelectrode as an efficient cocatalyst to accelerate the oxygen evolution *** as-prepared BVO-NB-5P photoelectrode exhibits a remarkable photocurrent density of 1.47 mA·cm^(−2)at 1.23 V versus the reversible hydrogen electrode(RHE)under air mass(AM)1.5 G illumination,which is about 2.8 times higher than the bare BiVO_(4)photoelectrode,and its water splitting rate is 11.3 times higher than bare BiVO_(4).The PEC studies reveal that the spin coated Ni_(3)B crystal cocatalyst could effectively reduce the water oxidation barrier,and improve the surface charge injection efficiency to 94%,which could boost the photogenerated holes reaction to enhance the PEC performance of BiVO_(4)photoelectrode.