LIQUID-PHASE OXIDATION OF ALCOHOLS BY DIOXYGEN USING OXIDE-SUPPORTED PLATINUM CATALYSTS

被引：25

作者：

JIA, CG ^{[1
]}

JING, FY ^{[1
]}

HU, WD ^{[1
]}

HUANG, MY ^{[1
]}

JIANG, YY ^{[1
]}

机构：

[1] ACAD SINICA,INST CHEM,BEIJING 100080,PEOPLES R CHINA

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1994年 / 91卷 / 01期

关键词：

ALCOHOLS; HIGH DISPERSION; LOW VALENCE; OXIDATION; PLATINUM; RECYCLABLE CATALYST; SUPPORTED CATALYSTS;

D O I：

10.1016/0304-5102(94)00025-5

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：

Alkaline earth oxide (MgO, CaO, BaO)-supported platinum catalysts displayed higher activity in the oxidation of alcohols such as 1-butanol, 1-hexanol, cyclopentanol and cyclohexanol under mild conditions than neutral oxide (SiO2, Al2O3) supported platinum catalysts. MgO-Pt catalyst could be recycled in the oxidation without noticeable decrease of its activity. Further investigation of MgO-Pt and SiO2-Pt by TEM and XPS showed that lower valent (mainly Pt(0)), smaller, and more homogeneously dispersed platinum particles tended to form on MgO than on SiO2. This indicated that the oxide in the oxide-Pt catalysts played an important role in controlling the dispersion and valence of platinum, consequently strongly influencing the activity of oxide-Pt catalysts.

引用

页码：139 / 147

页数：9

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[2]

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[3]

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