Site titration with organic bases during catalysis: Selectivity modifier and structural probe in methanol oxidation on Keggin clusters

被引：48

作者：

Liu, HC

Bayat, N

Iglesia, E ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Div Chem Sci, EO Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2003年 / 42卷 / 41期

关键词：

cluster compounds; heterogeneous catalysis; methanol; organic bases; oxidation;

D O I：

10.1002/anie.200352393

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The selective and permanent titration of protons with organic bases (2,6-di-tertbutylpyridine or pyridine) provides an accurate measure of the dispersion of Keggin structures during catalytic oxidation of methanol. Titration allows the systematic control of the redox and acid properties of H3+nPVnMo12-nO40 (n=0-4) Keggin clusters and leads to unprecedented selectivity in the formation of dimethoxymethane (>80%) and high yields.

引用

页码：5072 / 5075

页数：4

共 13 条

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Davis ME, 2002, ANGEW CHEM INT EDIT, V41, P858, DOI 10.1002/1521-3773(20020301)41:5<858::AID-ANIE858>3.0.CO

[2]

2-7

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