封面图片
2015年, 第9卷 第4期
(Xinxiang Cao, Arash Mirjalili, James Wheeler, Wentao Xie, Ben W.-L. Jang, pp. 422-449)
Alumina supported Cu-Pd single atom alloy catalysts have been synthesized using galvanic replacement and simple traditional incipient wetness techniques. The single atom alloy structure is evidenced by the HAADF-STEM and H2-chemsorption results. These two techniques can be further used as complimentary methods to confirm the formation of other single atom alloys on common industrial supports. The Cu-Pd catalysts synthesized show excellent selectivity and good activity for the selective hydrogenation of acetylene in ethylene due to the unique function of alloyed single Pd atoms to dissociate hydrogen molecules and transferthem to the neighboring Cu atoms for selective hydrogenation.On the other hand, the overall performance, including catalytic stability,of Cu-Pd catalysts is strongly tied to the synthesis procedure dictating how single atom alloy structure is formed.
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ISSN 2095-0179 (Print)
ISSN 2095-0187 (Online)
CN 11-5981/TQ
Postal Subscription Code 80-969 Formerly Known as Frontiers of Chemical Science and Engineering in China 2018 Impact Factor: 2.809