Determination of the surface coverage of Re/Al2O3 catalysts by ion scattering spectroscopy and low-temperature CO adsorption

被引：2
|
作者：
Cornaglia, L
Houalla, M
Goldwasser, J
Hercules, DM
机构：
[1] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA
[2] UNL, CONICET, Inst Invest Catalisis & Petroquim, FIQ, RA-3000 Santa Fe, Argentina
[3] Cent Univ Venezuela, Fac Ciencias, Ctr Catalisis Petroleo & Petroqium, Caracas 1020A, Venezuela
来源：
CATALYSIS LETTERS | 1999年 / 63卷 / 3-4期
关键词：
Re/Al2O3; catalysts; low-temperature CO adsorption; ion scattering spectroscopy; coverage measurements; equilibrium adsorption;
D O I：
10.1023/A:1019069021683
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 surface coverage of a series of rhenia-alumina catalysts prepared by equilibrium adsorption was determined by low-temperature CO adsorption. The results show a linear increase in the coverage of the Re oxide on the alumina support up to 24% with increasing Re loading from 0 to ca. 5.6 wt%. This is consistent with a uniform build-up of the surface species. The coverage values measured by this method agreed very well with those obtained by ion scattering spectroscopy.
引用
收藏
页码：131 / 133
页数：3
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