Selective Se doping of NiFe_(2)O_(4) on an active NiOOH scaffold for efficient and robust water oxidation

作     者：Yuan Huang Jian-Jun Wang Yang Zou Li-Wen Jiang Xiao-Long Liu Wen-Jie Jiang Hong Liu Jin-Song Hu 黄远;王建军;邹杨;蒋立文;刘晓龙;江文杰;刘宏;胡劲松

作者机构：State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100ShandongChina Shenzhen Research Institute of Shandong UniversityShenzhen 518057GuangdongChina Institute for Advanced Interdisciplinary Research(IAIR)University of JinanJinan 250022ShandongChina Beijing National Laboratory for Molecular Sciences(BNLMS)CAS Key Laboratory of Molecular Nanostructure and NanotechnologyInstitute of ChemistryChinese Academy of ScienceBeijing 100190China 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2021年第42卷第8期

页      面：1395-1403页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：国家自然科学基金(21802086,51732007,21902162) 山东省自然科学基金(ZR2019MB048) 山东大学齐鲁青年学者项目 北京分子科学国家研究中心课题(BNLMS201802) 深圳市科技创新委员会基础研究计划(JCYJ20190807093411445) 山东省高校生物诊断与治疗技术与设备协同创新中心 

主　　题：Water oxidation Selective selenization NiFe2O4 NiOOH Heterostructure 

摘      要：There remains a challenge in designing electrocatalysts for water oxidation to create highly efficient catalytic sites for the oxygen evolution reaction(OER)while maintaining their robustness at large ***,an etching-assisted synthesis approach was developed to integrate highly active NiFe2O4 nanoparticles with a robust and active NiOOH scaffold directly on commercial stainless steel.A precise selenization strategy was then introduced to achieve selective Se doping of NiFe2O4 to further enhance its intrinsic OER activity while maintaining a three-dimensional NiOOH nanosheet array as a robust scaffold for prompt mass transfer and gas *** resulting NiFe2O4-xSex/NiOOH electrode exhibited superior electrocatalytic activity with low overpotentials of 153 and 259 mV to deliver benchmark current densities of 10 and 500 mA cm^(−2),*** importantly,the catalyst exhibited remarkable durability at a stable current output of 100 mA cm^(−2)for hundreds of *** findings may open up opportunities for exploring efficient and robust electrocatalysts for scalable hydrogen production with practical materials.