CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Interfacial electronic interaction of atomically dispersed IrClx on ultrathin Co(OH)(2)/CNTs for efficient electrocatalytic water oxidation
Huang, YW; Wei, GJ; He, J; An, CH; Hu, M; Shu, M; Zhu, JF; Yao, S; Xi, W; Si, R; Zhang, ZM; An, CH
2020
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume279Pages:-
Subtype期刊论文
AbstractThe exploration of highly-efficient oxygen evolution reaction (OER) electrocatalyst with well-defined structure to understand specific structure-performance relationship is crucial to meet the requirement of water-splitting. Herein, we firstly used atomically dispersed IrClx to uniformly decorate ultrathin Co(OH)(2) nanosheets to dramatically improve electrocatalytic activity. The synthesized IrClx-Co(OH)(2) nanosheets/carbon nanotubes (CNTs) exhibits an overpotential of 230 mV to reach 10 mA/cm(2), which was much enhanced compared to that of pristine Co(OH)(2)/CNTs (308 mV) and commercial benchmark IrO2(309 mV). X-ray absorption fine structure and density functional theory simulations demonstrate strong interfacial interaction between IrClx and Co(OH)(2) nanosheets via the Cl-Ir-O and Ir-Cl-Co bond can efficiently boost its electronic conductivity. The accelerated charge transfer promotes the formation of more positively charged O atoms around cobalt centers, which is beneficial for the deprotonation on IrClx-Co(OH)(2) and makes the catalyst facilitate OER.
KeywordLAYERED DOUBLE HYDROXIDE ACTIVE-SITES OXYGEN CATALYST SURFACE HYDROTALCITE NANOSHEETS NITRILES SUPPORT METALS
DOI10.1016/j.apcatb.2020.119398
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32949
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Tianjin Univ Technol, Tianjin Key Lab Adv Funct Porous Mat, Sch Chem & Chem Engn,Inst New Energy Mat & Low Ca, Tianjin Key Lab Organ Solar Cells & Photochem Con, Tianjin 300384, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
3.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China
Recommended Citation
GB/T 7714
Huang, YW,Wei, GJ,He, J,et al. Interfacial electronic interaction of atomically dispersed IrClx on ultrathin Co(OH)(2)/CNTs for efficient electrocatalytic water oxidation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020,279:-.
APA Huang, YW.,Wei, GJ.,He, J.,An, CH.,Hu, M.,...&An, CH.(2020).Interfacial electronic interaction of atomically dispersed IrClx on ultrathin Co(OH)(2)/CNTs for efficient electrocatalytic water oxidation.APPLIED CATALYSIS B-ENVIRONMENTAL,279,-.
MLA Huang, YW,et al."Interfacial electronic interaction of atomically dispersed IrClx on ultrathin Co(OH)(2)/CNTs for efficient electrocatalytic water oxidation".APPLIED CATALYSIS B-ENVIRONMENTAL 279(2020):-.
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