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Different behaviors on the external and inner surface of hollow CdS/VS-MoS2 heterojunctions in photoelectrocatalytic CO2 reduction via SH-assisted mechanism
Liu, Chunyan1; Xiao, Yejun3; Wan, Wenrui1; Wei, Yan1; Cao, Youzhi1; Hong, Lin1; Wang, Yingqi1; Chen, Jiazang2; Zhang, QL(张巧兰)1; Jing, HW(景欢旺)1,2
2023-05-15
Source PublicationApplied Catalysis B: Environmental
ISSN0926-3373
Volume325
AbstractThe photoelectrocatalytic reduction of CO2 to value-added chemicals is a promising methodology to address both environmental and energy issues on the earth. Herein, a hollow heterojunction of CdS/VS-MoS2 rich in S-vacancies (VS) was designed, synthesized and applied to the photoelectrocatalytic reduction of CO2. The different selectivity for products between inner and external surfaces of hollow catalysts were carefully investigated. The selectivity for C2 chemicals on the inner surfaces is up to 67.0% due to the increased collision probability of the intermediates in the confined cavity. Therefore, the morphology is important to the selectivity of products in photoelectrocatalytic reduction of CO2. A new mechanism of SH-assisted CO2 reduction was proven by DFT calculation and the important active species such as *OCHO, *CO2−, SH (active hydrogen atom trapped by S atom) were verified obviously by the operando IR spectra on a self-installed instrument. © 2023 Elsevier B.V.
KeywordAtoms Cadmium sulfide Carbon dioxide Catalyst selectivity Heterojunctions II-VI semiconductors Molybdenum compounds Morphology Nanotechnology CO 2 reduction External surfaces Inner surfaces Operando IR Photo-electrocatalysis Photoelectrocatalysis Photoelectrocatalytic Sustainable chemistry Value-added chemicals
PublisherElsevier B.V.
DOI10.1016/j.apcatb.2023.122394
Indexed ByEI
Language英语
EI Accession Number20230213381013
EI KeywordsSustainable chemistry
EI Classification Number712.1 Semiconducting Materials ; 714.2 Semiconductor Devices and Integrated Circuits ; 761 Nanotechnology ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.2 Inorganic Compounds ; 931.2 Physical Properties of Gases, Liquids and Solids ; 931.3 Atomic and Molecular Physics ; 951 Materials Science
Original Document TypeJournal article (JA)
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/500495
Collection化学化工学院
Corresponding AuthorZhang, Qiaolan; Jing, Huanwang
Affiliation1.State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou; 730000, China;
2.State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan; 030001, China;
3.State Key Laboratory of Molecular Reaction Dynamics and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian; 116023, China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Liu, Chunyan,Xiao, Yejun,Wan, Wenrui,et al. Different behaviors on the external and inner surface of hollow CdS/VS-MoS2 heterojunctions in photoelectrocatalytic CO2 reduction via SH-assisted mechanism[J]. Applied Catalysis B: Environmental,2023,325.
APA Liu, Chunyan.,Xiao, Yejun.,Wan, Wenrui.,Wei, Yan.,Cao, Youzhi.,...&Jing, Huanwang.(2023).Different behaviors on the external and inner surface of hollow CdS/VS-MoS2 heterojunctions in photoelectrocatalytic CO2 reduction via SH-assisted mechanism.Applied Catalysis B: Environmental,325.
MLA Liu, Chunyan,et al."Different behaviors on the external and inner surface of hollow CdS/VS-MoS2 heterojunctions in photoelectrocatalytic CO2 reduction via SH-assisted mechanism".Applied Catalysis B: Environmental 325(2023).
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