Catalytic combustion of toluene over cluster-derived gold/iron catalysts

被引：48

作者：

Albonetti, Stefania ^{[1
,2
]}

Bonelli, Rosa ^{[1
,2
]}

Delaigle, Romain ^{[5
]}

Femoni, Cristina ^{[3
]}

Gaigneaux, Eric M. ^{[5
]}

Morandi, Vittorio ^{[4
]}

Ortolani, Luca ^{[4
]}

Tiozzo, Cristina ^{[3
]}

Zacchini, Stefano ^{[3
]}

Trifiro, Ferruccio ^{[1
,2
]}

机构：

[1] Univ Bologna, Dipartimento Chim Ind & Mat, I-40136 Bologna, Italy

[2] INSTM, Res Unit Bologna, Bologna, Italy

[3] Univ Bologna, Dipartimento Chim Fis & Inorgan, I-40136 Bologna, Italy

[4] CNR, IMM, Sez Bologna, I-40129 Bologna, Italy

[5] Catholic Univ Louvain, Unite Catalyse & Chim Mat Divises, B-1348 Louvain, Belgium

来源：

APPLIED CATALYSIS A-GENERAL | 2010年 / 372卷 / 02期

关键词：

Catalytic combustion; Gold/iron catalysts; Cluster-derived catalysts; VOLATILE ORGANIC-COMPOUNDS; IRON-OXIDE; OXIDATION; GOLD; AU; CO; BEHAVIOR; REDUCTION; TIO2;

D O I：

10.1016/j.apcata.2009.10.029

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 total oxidation of toluene was investigated over TiO2-supported gold/iron catalysts prepared utilizing the [NEt4][AuFe4(CO)(16)] bimetallic carbonyl cluster salts. The catalysts have been characterized by means of infra-red spectroscopy (FT-IR), inductively coupled plasma spectrometry (ICP), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), total specific surface area (BET), X-ray photoelectron spectroscopy (XPS) and temperature programmed reduction (TPR) analyses. The novel preparation method resulted in iron oxide species finely and homogeneously distributed on the TiO2 and on small gold nanoparticles. The presence of gold has been found to enhance the selectivity of iron oxides towards the complete oxidation of toluene while the extent of the interaction between the two metals is important for catalytic activity. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：138 / 146

页数：9

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