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Cobalt Covalent Doping in MoS2 to Induce Bifunctionality of Overall Water Splitting
Xiong, QZ; Wang, Y; Liu, PF; Zheng, LR; Wang, GZ; Yang, HG; Wong, PK; Zhang, HM; Zhao, HJ; Zheng LR(郑黎荣)
2018
Source PublicationADVANCED MATERIALS
ISSN0935-9648
EISSN1521-4095
Volume30Issue:29Pages:1801450
SubtypeArticle
AbstractThe layer-structured MoS2 is a typical hydrogen evolution reaction (HER) electrocatalyst but it possesses poor activity for the oxygen evolution reaction (OER). In this work, a cobalt covalent doping approach capable of inducing HER and OER bifunctionality into MoS2 for efficient overall water splitting is reported. The results demonstrate that covalently doping cobalt into MoS2 can lead to dramatically enhanced HER activity while simultaneously inducing remarkable OER activity. The catalyst with optimal cobalt doping density can readily achieve HER and OER onset potentials of -0.02 and 1.45 V (vs reversible hydrogen electrode (RHE)) in 1.0 m KOH. Importantly, it can deliver high current densities of 10, 100, and 200 mA cm(-2) at low HER and OER overpotentials of 48, 132, 165 mV and 260, 350, 390 mV, respectively. The reported catalyst activation approach can be adapted for bifunctionalization of other transition metal dichalcogenides.
Keywordbifunctional electrocatalysts cobalt covalent doping MoS2 overall water splitting vapor-phase hydrothermal method
DOI10.1002/adma.201801450
WOS KeywordELECTROCATALYTIC HYDROGEN EVOLUTION ; LITHIUM-ION BATTERIES ; MOLYBDENUM-CARBIDE ; ULTRATHIN NANOSHEETS ; PHASE-TRANSFORMATION ; NEUTRAL CONDITIONS ; NICKEL FOAM ; EFFICIENT ; CATALYSTS ; OXYGEN
Indexed BySCI ; EI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000438709400027
EI Accession Number20182305270464
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286118
Collection多学科研究中心
中国科学院高能物理研究所_中国散裂中子源
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Xiong, QZ,Wang, Y,Liu, PF,et al. Cobalt Covalent Doping in MoS2 to Induce Bifunctionality of Overall Water Splitting[J]. ADVANCED MATERIALS,2018,30(29):1801450.
APA Xiong, QZ.,Wang, Y.,Liu, PF.,Zheng, LR.,Wang, GZ.,...&郑黎荣.(2018).Cobalt Covalent Doping in MoS2 to Induce Bifunctionality of Overall Water Splitting.ADVANCED MATERIALS,30(29),1801450.
MLA Xiong, QZ,et al."Cobalt Covalent Doping in MoS2 to Induce Bifunctionality of Overall Water Splitting".ADVANCED MATERIALS 30.29(2018):1801450.
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