Copper- and vanadium-catalyzed methane oxidation into oxygenates with in situ generated H2O2 over Pd/C

被引：44

作者：

Park, ED

Hwang, YS

Lee, CW

Lee, JS

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea

[2] Hanbat Natl Univ, Dept Chem Engn, Taejon 305719, South Korea

来源：

APPLIED CATALYSIS A-GENERAL | 2003年 / 247卷 / 02期

关键词：

methane oxidation; methanol; Pd/C; copper; vanadium; XAFS;

D O I：

10.1016/S0926-860X(03)00125-X

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：

Copper- and vanadium-catalyzed oxidation of methane into methyl trifluoroacetate and formic acid with in situ generated H2O2 from H-2 and O-2 over Pd/C was investigated in trifluoroacetic acid (TFA) and/or trifluoroacetic anhydride (TFAA) as a solvent. Metallic palladium was responsible for the in situ generation of hydrogen peroxide from dihydrogen and dioxygen. Divalent copper hydroperoxide and monoperoxomonovanadate, VO(O-2)(+), seemed to be related to C-H bond activation. The radical chain reaction did not occur in either copper- or vanadium-catalyzed methane oxidation. However, methyl radical appeared to be produced in vanadium system but not in copper system. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：269 / 281

页数：13

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