Stable Potential Windows for Long-Term Electrocatalysis by Manganese Oxides Under Acidic Conditions

doi:10.1002/anie.201813361

	Stable Potential Windows for Long-Term Electrocatalysis by Manganese Oxides Under Acidic Conditions
	Sun, Yimeng 1,2,3; Jiang, Qike 2,3; Han, Hongxian 2,3,6; Li, Can 2,3; Nakamura, Ryuhei 4,7; Li, Ailong 1,2,3,4; Ooka, Hideshi 4; Bonnet, Nadege 4; Hayashi, Toru 4,5
刊名	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
	2019-04-01
卷号	58 期号:15 页码:5054-5058
关键词	acidic conditions manganese oxide proton-exchange membrane electrolyzer stable potential windows water oxidation
ISSN号	1433-7851
DOI	10.1002/anie.201813361
通讯作者	Han, Hongxian(hxhan@dicp.ac.cn) ; Nakamura, Ryuhei(ryuhei.nakamura@riken.jp)
英文摘要	Efficient, earth-abundant, and acid-stable catalysts for the oxygen evolution reaction (OER) are missing pieces for the production of hydrogen via water electrolysis. Here, we report how the limitations on the stability of 3d-metal materials can be overcome by the spectroscopic identification of stable potential windows in which the OER can be catalyzed efficiently while simultaneously suppressing deactivation pathways. We demonstrate the benefits of this approach using gamma manganese oxide (gamma-MnO2), which shows no signs of deactivation even after 8000h of electrolysis at a pH of 2. This stability is vastly superior to existing acid-stable 3d-metal OER catalysts, but cannot be realized if there is a deviation as small as 50-mV from the stable potential window. A stable voltage efficiency of over 70% in a polymer-electrolyte membrane (PEM) electrolyzer further verifies the availability of this approach and showcases how materials previously perceived to be unstable may have potential application for water electrolysis in an acidic environment.
资助项目	JSPS[18H02070] ; PhD fellowship International Program Associate of RIKEN, Japan ; National Key R&D Program of China[2017YFA0204804] ; National Natural Science Foundation of China[21761142018] ; National Natural Science Foundation of China[21473189] ; 973 National Basic Research Program of the Ministry of Science and Technology[2014CB239401]
WOS关键词	WATER OXIDATION ; OXYGEN EVOLUTION ; HYDROGEN ; GAMMA-MNO2 ; CATALYST ; STABILITY ; EFFICIENT ; MNO2 ; ELECTROLYSIS ; CHALLENGES
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000463739900046
资助机构	JSPS ; JSPS ; PhD fellowship International Program Associate of RIKEN, Japan ; PhD fellowship International Program Associate of RIKEN, Japan ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 National Basic Research Program of the Ministry of Science and Technology ; 973 National Basic Research Program of the Ministry of Science and Technology ; JSPS ; JSPS ; PhD fellowship International Program Associate of RIKEN, Japan ; PhD fellowship International Program Associate of RIKEN, Japan ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 National Basic Research Program of the Ministry of Science and Technology ; 973 National Basic Research Program of the Ministry of Science and Technology ; JSPS ; JSPS ; PhD fellowship International Program Associate of RIKEN, Japan ; PhD fellowship International Program Associate of RIKEN, Japan ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 National Basic Research Program of the Ministry of Science and Technology ; 973 National Basic Research Program of the Ministry of Science and Technology ; JSPS ; JSPS ; PhD fellowship International Program Associate of RIKEN, Japan ; PhD fellowship International Program Associate of RIKEN, Japan ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 973 National Basic Research Program of the Ministry of Science and Technology ; 973 National Basic Research Program of the Ministry of Science and Technology
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/165600]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Han, Hongxian; Nakamura, Ryuhei
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Solar Energy, Dalian 116023, Peoples R China 4.RIKEN, CSRS, Biofunct Catalyst Res Team, 2-1 Hirosawa, Wako, Saitama 3510198, Japan 5.Univ Tokyo, Dept Appl Chem, Sch Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan 6.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China 7.Tokyo Inst Technol, ELSI, Meguro Ku, 2-12-1-17E Ookayama, Tokyo 1528550, Japan
推荐引用方式 GB/T 7714	Sun, Yimeng,Jiang, Qike,Han, Hongxian,et al. Stable Potential Windows for Long-Term Electrocatalysis by Manganese Oxides Under Acidic Conditions[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2019,58(15):5054-5058.
APA	Sun, Yimeng.,Jiang, Qike.,Han, Hongxian.,Li, Can.,Nakamura, Ryuhei.,...&Hayashi, Toru.(2019).Stable Potential Windows for Long-Term Electrocatalysis by Manganese Oxides Under Acidic Conditions.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,58(15),5054-5058.
MLA	Sun, Yimeng,et al."Stable Potential Windows for Long-Term Electrocatalysis by Manganese Oxides Under Acidic Conditions".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 58.15(2019):5054-5058.