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题名: SiO2-supported Au-Ni bimetallic catalyst for the selective hydrogenation of acetylene
作者: Chai, Mengqian1, 2;  Liu, Xiaoyan1;  Li, Lin1;  Pei, Guangxian1, 2;  Ren, Yujing1, 2;  Su, Yang1;  Cheng, Hongkui3;  Wang, Aiqin1;  Zhang, Tao1
关键词: Gold ;  Nickel ;  Bimetallic catalyst ;  Synergistic effect ;  Acetylene hydrogenation
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2017-08-01
DOI: 10.1016/S1872-2067(17)62869-9
卷: 38, 期:8, 页:1338-1346
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Supported Au catalysts have been reported to exhibit high ethylene selectivity in the hydrogenation of acetylene, but the conversion is relatively low. Adding a second metal to Au has proven to be a promising approach to enhance its catalytic performance in acetylene hydrogenation. In this work, SiO2-supported Au-Ni bimetallic catalysts were synthesized and investigated in the selective hydrogenation of acetylene. The Au-Ni bimetallic catalysts exhibited much higher catalytic performance than that of the corresponding monometallic Au or Ni catalysts. By tuning the reduction temperature and/or Ni loading, we obtained an Au-Ni/SiO2 catalyst with optimal performance. The results of transmission electron microscopy imaging revealed that the Au-Ni bimetallic particles were highly dispersed on the SiO2 support. Meanwhile, analysis of the bimetallic catalyst by energy-dispersive X-ray spectroscopy, high-resolution transmission electron microscopy, and in situ diffuse reflectance infrared Fourier transform spectroscopy demonstrated the formation of Au-Ni alloy, which contributed to the synergistic effect between Au and Ni in the hydrogenation of acetylene. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: ETHENE-RICH STREAMS ;  CARBON-MONOXIDE ;  ALLOY CATALYSTS ;  CHEMOSELECTIVE HYDROGENATION ;  PALLADIUM CATALYSTS ;  HIGHLY EFFICIENT ;  EXCESS ETHYLENE ;  CO OXIDATION ;  GOLD ;  PD
语种: 英语
WOS记录号: WOS:000408600200006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149954
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chia Tai Energy Mat Dalian Co Ltd, Dalian 116021, Liaoning, Peoples R China

Recommended Citation:
Chai, Mengqian,Liu, Xiaoyan,Li, Lin,et al. SiO2-supported Au-Ni bimetallic catalyst for the selective hydrogenation of acetylene[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(8):1338-1346.
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