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题名: Enhancement of Acetylene Hydrogenation Activity Over Ni-Zn Bimetallic Catalyst by Doping with Au
作者: Xu, Jinghua1, 2;  Huang, Yanqiang2;  Yang, Xiaofeng2;  He, Lei2;  Zhou, Huiran2;  Lin, Qingquan2;  Zhang, Tao2;  Geng, Haoran1
关键词: Ni-Zn Al Hydrotalcite ;  Au ;  Hydrogenation ;  Acetylene ;  Activity
刊名: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
发表日期: 2014-09-01
DOI: 10.1166/jnn.2014.8955
卷: 14, 期:9, 页:6894-6899
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Multidisciplinary ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied ;  Physics, Condensed Matter
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: A series of modified Ni-Zn bimetallic catalysts were prepared by depositing different kinds of 4 wt% metals (Ir, Pt, Au, Cu, Ag) on the Ni-Zn-Al hydrotalcite (NZAH) and tested in the selective hydrogenation of acetylene. The activity was enhanced by 3-fold over the 4 wt% Au/NZAH, meanwhile, the yield of C2H4 was also increased more than 4 times compared with the NZAH. Characterization by means of H-2-TPR, XRD, SEM, and TEM revealed that Au was highly dispersed on the catalyst, and the ternary Au-Ni-Zn alloy was formed during the H-2 reduction at 500 degrees C. Doping Au in Ni-Zn bimetallic catalyst weakens the adsorption of acetylene and also hinders the coke deposition on the catalyst, which leads to the enhanced activity in acetylene hydrogenation.
关键词[WOS]: LAYERED DOUBLE HYDROXIDES ;  ETHENE-RICH STREAMS ;  SELECTIVE HYDROGENATION ;  PALLADIUM CATALYSTS ;  CARBON-MONOXIDE ;  HYDROTALCITE ;  KINETICS ;  ETHYLENE ;  ETHYNE ;  CO
语种: 英语
WOS记录号: WOS:000335873900055
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145903
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shan Dong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Xu, Jinghua,Huang, Yanqiang,Yang, Xiaofeng,et al. Enhancement of Acetylene Hydrogenation Activity Over Ni-Zn Bimetallic Catalyst by Doping with Au[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2014,14(9):6894-6899.
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