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Correlation between Microstructure Evolution of a Well-Defined Cubic Palladium Catalyst and Selectivity during Acetylene Hydrogenation
Niu, Yiming; Zhang, Bingsen; Luo, Jingjie; Zhang, Liyun; Chen, Cheng-Meng; Su, Dang Sheng; Zhang, BS; Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
2017-09-22
Source PublicationWILEY-V C H VERLAG GMBH
ISSN1867-3880
Volume9Issue:18Pages:3435-3439
AbstractThe varied surface structures of a Pd catalyst showed different catalytic performances in the partial hydrogenation of acetylene. The exposed Pd (100) facet is considered to be the most selective of all other facets for the formation of ethylene, but it is unstable and the fine structure needs to be revealed during the reaction. Herein, the evolution of the surface structure of cubic Pd nanoparticles, which are all bound with (100) facets, was studied by transmission electron microscopy in the partial hydrogenation of acetylene. Furthermore, the relation between the varying surface structure and the activity/selectivity was correlated. The (100) facets of Pd were transformed into stepped facets during the reaction, derived by adsorption/desorption of the reactants and energy compensation, which was the main reason for the decrease in the selectivity towards ethylene.; The varied surface structures of a Pd catalyst showed different catalytic performances in the partial hydrogenation of acetylene. The exposed Pd (100) facet is considered to be the most selective of all other facets for the formation of ethylene, but it is unstable and the fine structure needs to be revealed during the reaction. Herein, the evolution of the surface structure of cubic Pd nanoparticles, which are all bound with (100) facets, was studied by transmission electron microscopy in the partial hydrogenation of acetylene. Furthermore, the relation between the varying surface structure and the activity/selectivity was correlated. The (100) facets of Pd were transformed into stepped facets during the reaction, derived by adsorption/desorption of the reactants and energy compensation, which was the main reason for the decrease in the selectivity towards ethylene.
description.department[niu, yiming ; zhang, bingsen ; luo, jingjie ; zhang, liyun ; su, dang sheng] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china ; [niu, yiming] univ sci & technol china, dept mat sci & engn, 96 jinzhai rd, hefei 230026, peoples r china ; [chen, cheng-meng] chinese acad sci, inst coal chem, key lab carbon mat, 27 taoyuan south rd, taiyuan 030001, shanxi, peoples r china
KeywordElectron Microscopy Facets Hydrogenation Palladium Surface Structure Evolution
Subject AreaChemistry, Physical
Funding OrganizationNational Natural Science Foundation of China [91545119, 21203215]; Youth Innovation Promotion Association CAS [2015152]; Joint Foundation of Liaoning Province National Science Foundation and Shenyang National Laboratory for Materials Science [2015021011]; Chinese Academy of Sciences [XDA09030103]; CAS/SAFEA
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79087
Collection中国科学院金属研究所
Corresponding AuthorZhang, BS; Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Niu, Yiming,Zhang, Bingsen,Luo, Jingjie,et al. Correlation between Microstructure Evolution of a Well-Defined Cubic Palladium Catalyst and Selectivity during Acetylene Hydrogenation[J]. WILEY-V C H VERLAG GMBH,2017,9(18):3435-3439.
APA Niu, Yiming.,Zhang, Bingsen.,Luo, Jingjie.,Zhang, Liyun.,Chen, Cheng-Meng.,...&Su, DS .(2017).Correlation between Microstructure Evolution of a Well-Defined Cubic Palladium Catalyst and Selectivity during Acetylene Hydrogenation.WILEY-V C H VERLAG GMBH,9(18),3435-3439.
MLA Niu, Yiming,et al."Correlation between Microstructure Evolution of a Well-Defined Cubic Palladium Catalyst and Selectivity during Acetylene Hydrogenation".WILEY-V C H VERLAG GMBH 9.18(2017):3435-3439.
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