INCORPORATION AND REACTIVITY OF CARBON IN PALLADIUM

被引：33

作者：

MACIEJEWSKI, M

BAIKER, A

机构：

[1] Department of Chemical Engineering and Industrial Chemistry, Swiss Ferderal Institute of Technology, ETH-Zentrum

来源：

PURE AND APPLIED CHEMISTRY | 1995年 / 67卷 / 11期

关键词：

D O I：

10.1351/pac199567111879

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The incorporation of carbon into supported (ZrO2, Al2O3, TiO2) and unsupported palladium has been investigated by means of thermal analysis and X-ray powder diffraction. Below 500 degrees C the rate of CO disproportionation, preceding carbon incorporation, depended on the kind of support and decreased in the order: ZrO2 > TiO2 > Al2O3 > unsupported Pd. The carbon concentration in the Pd lattice declined above 600 degrees C and a maximal concentration of 15 at% was only reached with supported palladium. The reactivity of the carbon in the Pd-C solid solution towards oxygen and hydrogen was significantly higher than that of the surface carbon Partial removal of carbon from the Pd lattice already occurred during grinding at room temperature.

引用

页码：1879 / 1884

页数：6

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