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Pd/ZnO catalysts with different origins for high chemoselectivity in acetylene semi-hydrogenation
Zhou, Huiran1,2; Yang, Xiaofeng1; Wang, Aiqin1; Miao, Shu1; Liu, Xiaoyan1; Pan, Xiaoli1; Su, Yang1; Li, Lin1; Tan, Yuan1; Zhang, Tao1
KeywordSingle Atom Catalyst Acetylene Semi-hydrogenation Chemoselectivity Palladium Zinc Oxide
Source PublicationCHINESE JOURNAL OF CATALYSIS
2016-05-01
ISSN0253-9837
DOI10.1016/S1872-2067(15)61090-7
Volume37Issue:5Pages:692-699
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordSINGLE-ATOM CATALYSTS ; ETHENE-RICH STREAMS ; SELECTIVE HYDROGENATION ; PALLADIUM CATALYSTS ; ROOM-TEMPERATURE ; CO OXIDATION ; PD ; METHANOL ; ZNO ; ALLOY
AbstractThe heterogeneity of active sites is the main obstacle for selectivity control in heterogeneous catalysis. Single atom catalysts (SACS) with homogeneous isolated active sites are highly desired in chemoselective transformations. In this work, a Pd-1/ZnO catalyst with single-atom dispersion of Pd active sites was achieved by decreasing the Pd loading and reducing the sample at a relatively low temperature. The Pd-1/ZnO SAC exhibited excellent catalytic performance in the chemoselective hydrogenation of acetylene with comparable chemoselectivity to that of PdZn intermetallic catalysts and a greatly enhanced utilization of Pd metal. Such unusual behaviors of the Pd-1/ZnO SAC in acetylene semi-hydrogenation were ascribed to the high-valent single Pd active sites, which could promote electrostatic interactions with acetylene but restrain undesired ethylene hydrogenation via the spatial restrictions of o-chemical bonding toward ethylene. (C) 2016, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000376334500005
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/170921
Collection中国科学院大连化学物理研究所
Corresponding AuthorYang, Xiaofeng; Wang, Aiqin
Affiliation1.Chinese Acad Sci, iChEM Collaborat Innovat Ctr Chem Energy Mat, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Huiran,Yang, Xiaofeng,Wang, Aiqin,et al. Pd/ZnO catalysts with different origins for high chemoselectivity in acetylene semi-hydrogenation[J]. CHINESE JOURNAL OF CATALYSIS,2016,37(5):692-699.
APA Zhou, Huiran.,Yang, Xiaofeng.,Wang, Aiqin.,Miao, Shu.,Liu, Xiaoyan.,...&Zhang, Tao.(2016).Pd/ZnO catalysts with different origins for high chemoselectivity in acetylene semi-hydrogenation.CHINESE JOURNAL OF CATALYSIS,37(5),692-699.
MLA Zhou, Huiran,et al."Pd/ZnO catalysts with different origins for high chemoselectivity in acetylene semi-hydrogenation".CHINESE JOURNAL OF CATALYSIS 37.5(2016):692-699.
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