THE OXIDATION AND SCRAMBLING OF CO WITH OXYGEN AT ROOM-TEMPERATURE ON AU/ZNO

被引：77

作者：

BOCCUZZI, F ^{[1
]}

CHIORINO, A ^{[1
]}

TSUBOTA, S ^{[1
]}

HARUTA, M ^{[1
]}

机构：

[1] AIST,OSAKA NATL RES INST,IKEDA 563,JAPAN

来源：

CATALYSIS LETTERS | 1994年 / 29卷 / 1-2期

关键词：

FTIR; CO ADSORPTION; CO OXIDATION; CO SCRAMBLING; GOLD SUPPORTED ON ZNO; ISOTOPE EXCHANGE;

D O I：

10.1007/BF00814268

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：

An FTIR and quadrupole mass study of CO adsorption and oxidation with O-16(2) and O-18(2) on Au/ZnO catalysis is presented. The experimental results indicate that: (i) CO is activated by gold in two molecular forms, a linear carbonyl species bonded at terrace Au sites and a carbonyl species bonded to Au peripheral sites; (ii) a band related to CO adsorbed on Au oxidized sites and a scrambling reaction between CO and O-18(2) indicate that oxygen is also activated on gold sites. The oxygen adsorbed on gold is probably strongly basic, as is the oxygen adsorbed on silver and on copper, and it can easily oxidize CO to CO2.

引用

页码：225 / 234

页数：10

共 19 条

[1] CO ADSORPTION ON SMALL PARTICLES OF CU DISPERSED ON MICROCRYSTALLINE ZNO [J].