Construction of iron oxyhydroxide/nickel sulfate hydroxide hybrid electrocatalyst for efficient oxygen evolution  

作　　者：Bing-Rong Guo Meng-Xin Chen Si-Wei Li Ru-Hai Gao Bo-Han Sang Xiao-Qian Ren Zhe Liu Xun Cao Jia Liu Ya-Ni Ding Ping Xu Yao Xu 

机构地区：[1]Institute of Industrial Catalysis,School of Chemical Engineering and Technology,Xi’an Jiaotong University,Xi’an,710049,China [2]MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage,School of Chemistry and Chemical Engineering,Harbin Institute of Technology,Harbin,150001,China [3]Institute of Neuroscience,Translational Medicine Institute,Health Science Center,Xi’an Jiaotong University,Xi’an,710061,China [4]Institute of Sustainability for Chemicals,Energy and Environment(ISCE2),Agency for Science,Technology and Research(A*STAR),Jurong Island,627833,Singapore [5]Instrumental Analysis Center,Xi’an Jiaotong University,Xi’an,710049,China [6]Beijing National Laboratory for Molecular Sciences,College of Chemistry and Molecular Engineering and College of Engineering,and BIC-ESAT,Peking University,Beijing,100871,China

出　　处：《Rare Metals》2024年第12期6394-6404,共11页稀有金属(英文版)

基　　金：financially supported by the National Key R&D Program of China(No.2022YFA1504800);the National Natural Science Foundation of China(Nos.22202003 and 22209129);the High-Level Innovation and Entrepreneurship Talent Project of Qinchuangyuan(No.QCYRCXM-2022-123);the Innovation Capability Support Program of Shaanxi(No.2023-CX-TD-26);the"Young Talent Support Plan"of Xi'an Jiaotong University(No.HG6J024)。

摘　　要：Transition metal(TM)basic salts have been recognized as high-efficiency catalysts for electrocatalytic oxygen evolution reaction(OER),which is of great importance for producing clean hydrogen energy.Herein,novel OER electrocatalyst consisting of iron oxyhydroxide/nickel sulfate hydroxide nanobelts loaded on nickel foam(FeOOH/NiSH/NF)is reported,synthesized via a facile solvothermal-hydrolysis method.Impressively,the optimized FeOOH/NiSH/NF catalyst exhibits outstanding performance,requiring only a low overpotential of 265 mV to drive a current density of 50 mA·cm^(-2)for OER in alkaline media.Structure evolution of the catalysts under the OER process has been investigated through multiple characterization methods,and SO_(4)^(2-)adsorbed FeOOH/NiOOH is demonstrated to be the true active species.The essential role of incorporated FeOOH has been further elucidated by using density functional theory(DFT)calculations.This work not only reports a novel NiSH-based catalyst towards OER,but also provides insights for understanding the structure-property of TM basic saltbased hybrid OER catalysts.

关 键 词：Nickel sulfate hydroxide(NiSH) FEOOH ELECTROCATALYSIS Oxygen evolution reaction(OER) Hybrid catalyst 

分 类 号：TQ116.2[化学工程—无机化工] O643.36[理学—物理化学]