Quantitative determination of sites able to chemisorb CO on Au/ZrO2 catalysts

被引:43
作者
Menegazzo, F. [1 ,2 ]
Pinna, F. [1 ,2 ]
Signoretto, M. [1 ,2 ]
Trevisan, V. [1 ,2 ]
Boccuzzi, F. [3 ,4 ]
Chiorino, A. [3 ,4 ]
Manzoli, M. [3 ,4 ]
机构
[1] Univ Foscari, Dipartimento Chim, I-30123 Venice, Italy
[2] Consorzio INSTM Udr, Venice, Italy
[3] Univ Turin, Dipartimento Chim IFM, I-10125 Turin, Italy
[4] Univ Turin, NIS Ctr Excellence, I-10125 Turin, Italy
关键词
CO; Volumetric chemisorption; IR CO absorption; Au/ZrO2; Gold active sites; GAS SHIFT REACTION; ZIRCONIA SYSTEMS; GOLD CATALYSTS; CRYSTAL PHASE; SURFACE-AREA; OXIDATION; TIO2; ACID; PRECIPITATION; ADSORPTION;
D O I
10.1016/j.apcata.2008.12.004
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
Quantitative volumetric measurements of low temperature CO chemisorption on Au/ZrO2 catalysts and Fourier transform infrared measurements of adsorbed CO in well defined and controlled conditions of temperature and pressure are here presented as widely accessible and reproducible methods for determining the concentration of gold sites able to chemisorb CO on Au/ZrO2 catalysts. HRTEM analyses were also performed in order to support the validity of the measurements. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:31 / 35
页数:5
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