Chemical vapor deposition of platinum hexafluoroacetylacetonate inside HL zeolite: Role of metal-proton interactions

被引：18

作者：

Dossi, C

Psaro, R

Sordelli, L

Bellatreccia, M

Zanoni, R

机构：

[1] UNIV MILAN,DIPARTIMENTO CHIM INORGAN METALLORGAN & ANALI,I-20133 MILAN,ITALY

[2] UNIV ROMA LA SAPIENZA,DIPARTIMENTO CHIM,I-00185 ROME,ITALY

来源：

JOURNAL OF CATALYSIS | 1996年 / 159卷 / 02期

关键词：

D O I：

10.1006/jcat.1996.0107

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：

A Pt/HL model catalyst has been obtained by chemical vapor deposition of platinum hexafluoracetylacetonate and structurally characterized by EXAFS, In the conversion of methylcyclopentane at 350 degrees C, the selectivity is consistent with the typical bifunctional nature of the active sites. EXAFS results show that agglomeration of metal particles is greatly inhibited under catalytic conditions, i,e,, it is not responsible for the observed catalyst deactivation, Temperature-programmed oxidation profiles, in agreement with EXAFS results obtained from the used catalyst, indicate that carbon deposits are preferentially located on the protonic acidic sites of the HL structure. (C) 1996 Academic Press, Inc.

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页码：435 / 440

页数：6

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