Bimetallic Pt0.5Co0.5/SiO2 Catalyst: Preparation, Structure, and Properties in Preferential Oxidation of Carbon Monoxide

被引：15
|
作者：
Potemkin, D. I. [1 ,2 ]
Konishcheva, M. V. [1 ,2 ]
Zadesenets, A. V. [1 ,3 ]
Snytnikov, P. V. [1 ,2 ]
Filatov, E. Yu. [1 ,3 ]
Korenev, S. V. [1 ,3 ]
Sobyanin, V. A. [2 ]
机构：
[1] Novosibirsk State Univ, Novosibirsk 630090, Russia
[2] Russian Acad Sci, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
[3] Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
来源：
KINETICS AND CATALYSIS | 2018年 / 59卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
preferential CO oxidation; selective CO oxidation; bimetallic catalysts; binary complex salts; PT-CO CATALYSTS; SELECTIVE OXIDATION; H-2-RICH GASES; HYDROGEN; DECOMPOSITION; PERFORMANCE; STREAM; PT3CO; VAPOR;
D O I：
10.1134/S0023158418040110
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The Pt0.5DD 3/4 (0.5)/SiO2 catalyst has been prepared by the decomposition of a [Pt(NH3)(4)][Co(C2O4)(2)(H2O)(2)]. 2H(2)O binary complex salt supported in the pores of SiO2 pellets. It has been shown by a complex of physical and chemical methods that Pt0.5DD 3/4 (0.5)/SiO2 contains alloy nanoparticles with an average composition Pt0.5Co0.5. The catalytic properties of Pt0.5DD 3/4 (0.5)/SiO2 are studied in the preferential oxidation of DD in the reaction mixtures with various compositions. It was found that Pt0.5DD 3/4 (0.5)/SiO2 has a high selectivity and makes it possible to decrease the outlet concentration of CO to a level of < 10 ppm, and the presence of DD2 and/or De(2)D in the reaction mixture almost does not affect its catalytic properties. The structure of the catalyst is stable under the conditions of preferential CO oxidation.
引用
收藏
页码：514 / 520
页数：7
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