FTIR spectroscopic study of CO adsorption on Pt-H-ZSM-5

被引：80

作者：

Chakarova, K ^{[1
]}

Mihaylov, M ^{[1
]}

Hadjiivanov, K ^{[1
]}

机构：

[1] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2005年 / 81卷 / 1-3期

基金：

新加坡国家研究基金会;

关键词：

adsorption; carbon monoxide; FTIR spectroscopy; non-classical carbonyls; platinum; Pt-ZSM-5;

D O I：

10.1016/j.micromeso.2005.01.033

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This work reports the formation of some new non-classical carbonyls of platinum formed after CO adsorption on Pt-H-ZSM-5. These are: (i) Pt3+ (CO)(2) dicarbonyls (2211 and 2175 cm(-1)), which are decomposed without producing monocarbonyls; (ii) Pt2+ (CO)(2) (2165 and 2150 cm(-1)), decomposed via Pt2+-CO species (2113 cm(-1)); and (iii) Pt+ (CO)(3) complexes (2162, 2150 and 2110 cm(-1)) which easily loose one CO ligand even at room temperature being thus converted to Pt+ (CO)(2) (2120 and 2091 cm(-1)). The latter are thermally decomposed without producing monocarbonyls. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：305 / 312

页数：8

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