Catalytic wet oxidation of phenol over PtxAg1-xMnO2/CeO2 catalysts

被引：100

作者：

Hamoudi, S

Sayari, A

Belkacemi, K

Bonneviot, L

Larachi, F ^{[1
]}

机构：

[1] Univ Laval, Dept Chem Engn, Laval, PQ G1K 7P4, Canada

[2] Univ Laval, CERPIC, Laval, PQ G1K 7P4, Canada

[3] Univ Laval, Dept Food Sci & Nutr, Laval, PQ G1K 7P4, Canada

[4] Univ Laval, Dept Chem, Laval, PQ G1K 7P4, Canada

来源：

CATALYSIS TODAY | 2000年 / 62卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

catalytic wet oxidation; noble metal promotion; cerium and manganese oxides; phenol oxidation;

D O I：

10.1016/S0920-5861(00)00439-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Catalytic wet oxidation reactions of aqueous phenol over unpromoted, base- and noble-metal promoted MnO2/CeO2 catalysts were carried out under mild conditions (80-130 degreesC, 0.5MPa O-2) in a batch slurry reactor. Even though the catalyst-mediated oxidation was very effective in destroying phenol, only a moderate selectivity toward complete mineralization into CO2 and H2O was attained due to parallel formation of deactivating carbonaceous deposits. Promotion of the mixed-oxide catalysts with platinum and/or silver enhanced the mineralization selectivity and reduced appreciably the amount of deposits. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：379 / 388

页数：10

共 22 条

[1] Wet oxidation of acetic acid catalyzed by doped ceria [J].