CO2 reforming of CH4 on doped Rh/Al2O3 catalysts

被引：40

作者：

Sarusi, I. ^{[1
]}

Fodor, K. ^{[1
]}

Baan, K. ^{[1
]}

Oszko, A. ^{[1
]}

Potari, G. ^{[1
]}

Erdohelyi, A. ^{[1
,2
]}

机构：

[1] Univ Szeged, Inst Phys Chem & Mat Sci, H-6725 Szeged, Hungary

[2] Hungarian Acad Sci, React Kinet Lab, Chem Res Ctr, H-6725 Szeged, Hungary

来源：

CATALYSIS TODAY | 2011年 / 171卷 / 01期

关键词：

Dry reforming of methane; Reaction of methane with carbon dioxide; Promoted alumina supported Rh catalyst; Dissociation of carbon dioxide; SUPPORTED RH CATALYSTS; PROMOTED RH/SIO2 CATALYSTS; RHODIUM CATALYSTS; SURFACE INTERACTION; CARBON-DIOXIDE; METHANE; HYDROGENATION; ACTIVATION; OXIDATION; SELECTIVITY;

D O I：

10.1016/j.cattod.2011.03.075

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The reforming of methane with carbon dioxide has been investigated at 773 K on Rh/Al2O3 promoted with TiO2 and V2O5. In addition, the dissociation of carbon dioxide and methane has also been examined. TPR and XPS results revealed that during the pre-treatment of the catalysts not only Rh reduced but also TiO2 slightly and V2O5 significantly to V4+ below 600 K. The dissociation of carbon dioxide occurred most easily on vanadia promoted catalyst. Vanadia and titania promoted Rh/Al2O3 was found to be more active in the CO2 + CH4 reaction than the Rh/Al2O3. The increase of the conversion observed on V2O5 and TiO2 promoted Rh/Al2O3 catalysts could be attributed to the oxygen vacancies which formed on the additives during the pretreatment and the reaction. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：132 / 139

页数：8

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