ON THE REDUCTION OF PD2+ FORMS IN PD/GAMMA-AL2O3 CATALYSTS

被引：8

作者：

FRUSTERI, F ^{[1
]}

ARENA, F ^{[1
]}

PARMALIANA, A ^{[1
]}

MONDELLO, N ^{[1
]}

GIORDANO, N ^{[1
]}

机构：

[1] UNIV MESSINA,DIPARTIMENTO CHIM IND,I-98168 SANT AGATA,ITALY

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1993年 / 51卷 / 02期

关键词：

D O I：

10.1007/BF02069075

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：

The influence of the preparation method (i.e., Pd precursor and heat treatments) on the reduction pattern of Pd/gamma-Al2O3 catalysts has been investigated by TPR. The role of the Cl ions and-the effect of metal dispersity on the stability of Pd catalysts reduced at different Tr (400 less-than-or-equal-to T r less-than-or-equal-to 800-degrees-C) have been discussed. Reoxidation of Pd-degrees occurs during exposure to the atmosphere and the formation both of easily reducible ''Pdo forms'' and ''Cl-containing Pd2+ oxo-complexes'', strongly interacting with alumina surface, has been pointed out.

引用

页码：331 / 342

页数：12

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