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Synthesis of polyoxometalates derived bifunctional catalyst towards efficient overall water splitting in neutral and alkaline medium
Wang, Meng1,2; Dipazir, Sobia1,2; Lu, Peilong1,2; Wang, Yu3; Yuan, Menglei1,2; Li, Shuwei1; Zhang, Guangjin1
2018-12-15
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume532Pages:774-781
Abstract

The development of efficient hydrogen evolution and oxygen evolution reactions bifunctional electrocatalyst for overall water splitting is highly desired but still a great challenge, especially under neutral condition. With the unique properties of polyoxometalate and MOFs materials as well as rich transition metal contents, herein we successfully synthesize a novel bi-phase structure of cobalt and molybdenum carbide coated with nitrogen-doped graphite (Co-Mo2C@NC) which possesses excellent activity as water splitting electrocatalyst at neutral pH. This noble metal-free, bi-phase electrocatalyst exhibits Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER) overpotentials of 260 mV and 440 mV at 10 mA cm(-2), respectively. The two-electrode system using Co-Mo2C@NC as both the anode and cathode drives 10 mA cm(-2) at a cell voltage of 1.83 V with a remarkable long-term stability. Besides, the Co-Mo2C@NC also shows promising activity in alkaline condition that reaches 10 mA cm(-2) at a cell voltage of 1.66 V. This work paves a new avenue to the design of the unique, economic and promising non-noble metal electrode materials for practical applications in the electrochemical energy storage and conversion devices. (C) 2018 Elsevier Inc. All rights reserved.

KeywordPoms Zif Water Splitting Bifunctional Catalysis Neutral Ph
DOI10.1016/j.jcis.2018.08.040
Language英语
WOS KeywordHydrogen Evolution Reactions ; Whole Ph Range ; Oxygen Evolution ; Nickel Foam ; Electrocatalysts ; Nanospheres ; Nanowires ; Nitrogen ; Oxidation ; Electrode
Funding ProjectNational Natural Science Foundation of China[91545125] ; National Natural Science Foundation of China[U1662121] ; Youth Innovation Promotion Association of CAS
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS
WOS IDWOS:000445322600081
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26010
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Guangjin
Affiliation1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
3.North Univ China, Sch Environm & Safety Engn, Taiyuan 030051, Shanxi, Peoples R China
Recommended Citation
GB/T 7714
Wang, Meng,Dipazir, Sobia,Lu, Peilong,et al. Synthesis of polyoxometalates derived bifunctional catalyst towards efficient overall water splitting in neutral and alkaline medium[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,532:774-781.
APA Wang, Meng.,Dipazir, Sobia.,Lu, Peilong.,Wang, Yu.,Yuan, Menglei.,...&Zhang, Guangjin.(2018).Synthesis of polyoxometalates derived bifunctional catalyst towards efficient overall water splitting in neutral and alkaline medium.JOURNAL OF COLLOID AND INTERFACE SCIENCE,532,774-781.
MLA Wang, Meng,et al."Synthesis of polyoxometalates derived bifunctional catalyst towards efficient overall water splitting in neutral and alkaline medium".JOURNAL OF COLLOID AND INTERFACE SCIENCE 532(2018):774-781.
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