Ambient Temperature CO Oxidation Using Palladium-Platinum Bimetallic Catalysts Supported on Tin Oxide/Alumina

被引：5
作者：
Aldridge, James K. [1 ]
Smith, Louise R. [1 ]
Morgan, David J. [1 ]
Carley, Albert F. [1 ]
Humphreys, Mandy [2 ]
Clarke, Michael J. [2 ]
Wormald, Patricia [2 ]
Taylor, Stuart H. [1 ]
Hutchings, Graham J. [1 ]
机构：
[1] Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, Main Bldg,Pk Pl, Cardiff CF10 3AT, Wales
[2] Mol Prod, Harlow Business Pk, Harlow CM19 5FR, Essex, England
来源：
CATALYSTS | 2020年 / 10卷 / 11期
关键词：
catalytic oxidation; carbon monoxide; palladium; platinum; tin oxide; alumina; CARBON-MONOXIDE OXIDATION; OXIDE CATALYSTS; SNO2; PD; PERFORMANCE; KINETICS; METHANE; SURFACE; OXYGEN; XPS;
D O I：
10.3390/catal10111223
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：
A series of Pt-based catalysts were synthesised and investigated for ambient temperature CO oxidation with the aim to increase catalytic activity and improve moisture resistance through support modification. Initially, bimetallic PtPd catalysts supported on alumina were found to exhibit superior catalytic activity compared with their monometallic counterparts for the reaction. Following an investigation into the effect of Pt/Pd ratio, a composition of 0.1% Pt/0.4% Pd was selected for further studies. Following this, SnO2/Al2O3 supports were synthesised from a variety of tin oxide sources. Catalytic activity was improved using sodium stannate and tin oxalate precursors compared with a traditional tin oxide slurry. Catalytic activity versus tin concentration was found to vary significantly across the three precursors, which was subsequently investigated by X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDX).
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页码：1 / 15
页数：15
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