FTIR study of the interaction of crotonaldehyde and maleic anhydride with V2O5 and MoO3

被引：18

作者：

Lochar, V ^{[1
]}

Drobná, H ^{[1
]}

机构：

[1] Univ Pardubice, Dept Phys Chem, Pardubice 53210, Czech Republic

来源：

APPLIED CATALYSIS A-GENERAL | 2004年 / 269卷 / 1-2期

关键词：

FTIR spectroscopy; adsorption forms; crotonaldehyde; maleic anhydride;

D O I：

10.1016/j.apcata.2004.03.054

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 adsorption of crotonaldehyde and maleic anhydride on MoO3, respectively, V2O5 has been studied by FTIR spectroscopy. Crotonaldehyde was adsorbed mainly in molecular form due to hydrogen bonds with Bronsted acid sites of these oxides (physical adsorption) at room temperature (RT). Stable surface complexes (coordinatively bonded crotonaldehyde, carbonyl compounds and carboxylates) were found during the adsorption of crotonaldehyde on MoO3, respectively, V2O5 at 298-573 K. Carboxylates and consecutively maleic anhydride were products of reaction between crotonaldehyde and active sites Of V2O5 surface at high temperatures in the atmosphere of reaction gas. Maleic anhydride was physically adsorbed on MoO3, respectively, V2O5 via hydrogen bonds with surface hydroxyls. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：27 / 31

页数：5

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