Correlation between Microstructure Evolution of a Well-Defined Cubic Palladium Catalyst and Selectivity during Acetylene Hydrogenation

IMR OpenIR

	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
发表期刊	WILEY-V C H VERLAG GMBH
ISSN	1867-3880
卷号	9 期号:18 页码:3435-3439
摘要	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.; 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.
部门归属	[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
关键词	Electron Microscopy Facets Hydrogenation Palladium Surface Structure Evolution
学科领域	Chemistry, Physical
资助者	National 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
收录类别	SCI
语种	英语
WOS记录号	WOS:000411499300001
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79087
专题	中国科学院金属研究所
通讯作者	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.
推荐引用方式 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.