中文版 | English
Title

Strong phosphide-metaphosphate interaction in RuP/CoNiP4O12 for enhanced electrocatalytic water splitting

Author
Publication Years
2023-07-05
DOI
Source Title
ISSN
0926-3373
Volume328
Abstract
Strong metal-support interaction (SMSI) is a crucial concept in heterogeneous catalysis, which has been utilized to design efficient catalysts for electrocatalytic overall water splitting. Herein, a novel strong phosphide-metaphosphate interaction (SPmPI) is discovered in the RuP/CoNiPO catalyst for the first time. The SPmPI leads to efficient electron transfer from RuP to CoNiPO support, endowing the catalyst with a unique coordination environment of Ru-P and Ru-O, which is demonstrated to greatly facilitate the rate-determining water dissociation step. As a result, the RuP/CoNiPO catalyst with proper Ru-P and Ru-O coordination numbers requires an ultralow overpotential of 27 mV to deliver a current density of 10 mA cm for hydrogen evolution reaction (HER) in alkaline media. Moreover, the catalyst inherits the remarkable catalytic activity from the CoNiPO support for oxygen evolution reaction (OER), and therefore is also effective for overall water splitting (requiring 1.56 V to achieve 10 mA cm current density). This work not only reports a highly efficient catalyst for electrocatalytic overall water splitting, but also provides a novel concept of SPmPI for designing supported catalyst in heterogeneous catalysis.
Keywords
URL[Source Record]
Language
English
SUSTech Authorship
Others
ESI Research Field
CHEMISTRY
Scopus EID
2-s2.0-85148632710
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/497222
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.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
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.School of Physics and Astronomy,University of Birmingham,Birmingham,Edgbaston,B152TT,United Kingdom
4.National Key Laboratory of Science and Technology on Advanced Composites in Special Environments,Harbin Institute of Technology,Harbin,150001,China
5.Institute of Industrial Catalysis,School of Chemical Engineering and Technology,Xi'an Jiaotong University,Xi'an,710049,China
Recommended Citation
GB/T 7714
Zhao,Jianying,Zhang,Yuanyuan,Xia,Yu,et al. Strong phosphide-metaphosphate interaction in RuP/CoNiP4O12 for enhanced electrocatalytic water splitting[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2023,328.
APA
Zhao,Jianying.,Zhang,Yuanyuan.,Xia,Yu.,Zhang,Bin.,Du,Yunchen.,...&Xu,Ping.(2023).Strong phosphide-metaphosphate interaction in RuP/CoNiP4O12 for enhanced electrocatalytic water splitting.APPLIED CATALYSIS B-ENVIRONMENTAL,328.
MLA
Zhao,Jianying,et al."Strong phosphide-metaphosphate interaction in RuP/CoNiP4O12 for enhanced electrocatalytic water splitting".APPLIED CATALYSIS B-ENVIRONMENTAL 328(2023).
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