Synthesis and characterization of Sibunit-supported Pd–Ga, Pd–Zn, and Pd–Ag catalysts for liquid-phase acetylene hydrogenation

被引：0
|
作者：
D. V. Glyzdova
N. S. Smirnova
N. N. Leont’eva
E. Yu. Gerasimov
I. P. Prosvirin
V. I. Vershinin
D. A. Shlyapin
P. G. Tsyrul’nikov
机构：
[1] Russian Academy of Sciences,Institute of Hydrocarbons Processing, Siberian Branch
[2] Omsk State University,Boreskov Institute of Catalysis, Siberian Branch
[3] Russian Academy of Sciences,undefined
来源：
Kinetics and Catalysis | 2017年 / 58卷
关键词：
liquid-phase acetylene hydrogenation; palladium catalyst; doping of catalysts; Pd–Ga; Pd–Zn; and Pd–Ag catalysts;
D O I：
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中图分类号：
学科分类号：
摘要：
Pd/Sibunit and Pd–M/Sibunit (M = Ga, Zn, or Ag) catalysts have been synthesized, and their catalytic properties in liquid-phase acetylene hydrogenation have been investigated. Doping of the palladium catalyst with a metal M leads to the formation of the Pd2Ga, PdZn, or Pd0.46Ag0.54 bimetallic compound. The bimetallic particles are much smaller (1.6–2.0 nm) than the monometallic palladium particles (4.0 nm). Doping with zinc raises the ethylene selectivity by 25% without affecting the activity of the catalyst. Specific features of the effect of each of the dopants on palladium are reported.
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页码：140 / 146
页数：6
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