Citation: Mengqian Chai, Xiaoyan Liu, Lin Li, Guangxian Pei, Yujing Ren, Yang Su, Hongkui Cheng, Aiqin Wang, Tao Zhang. SiO₂-supported Au-Ni bimetallic catalyst for the selective hydrogenation of acetylene[J]. Chinese Journal of Catalysis, ;2017, 38(8): 1338-1346. shu

SiO₂-supported Au-Ni bimetallic catalyst for the selective hydrogenation of acetylene

Mengqian Chai ^a,b, ,
Xiaoyan Liu ^a ,
Lin Li ^a ,
Guangxian Pei ^a,b ,
Yujing Ren ^a,b ,
Yang Su ^a ,
Hongkui Cheng ^c ,
Aiqin Wang ^a ,
Tao Zhang ^a

a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Chia Tai Energy Materials(Dalian) Co., Ltd., Dalian 116021, Liaoning, China

Received Date: 14 April 2017
Revised Date: 6 June 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (21303194, 21476227, 21522608, 21573232, 21690084), Youth Innovation Promotion Association of the Chinese Academy of Sciences (2014163), the National Key Projects for Fundamental Research and Development of China (2016YFA0202801), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB17020100), and the Department of Science and Technology of Liaoning Province (2015020086-101).

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.
- Gold,
- Nickel,
- Bimetallic catalyst,
- Synergistic effect,
- Acetylene hydrogenation
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SiO2-supported Au-Ni bimetallic catalyst for the selective hydrogenation of acetylene

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SiO₂-supported Au-Ni bimetallic catalyst for the selective hydrogenation of acetylene