Combustion of diesel soot in NO/O2 presence. Cesium nitrate and gold catalysts

被引：15

作者：

Ruiz, Maria L. ^{[2
]}

Lick, Ileana D. ^{[1
]}

Ponzi, Marta I. ^{[2
]}

Rodriguez-Castellon, Enrique ^{[3
]}

Jimenez-Lopez, Antonio ^{[3
]}

Ponzi, Esther N. ^{[1
]}

机构：

[1] CINDECA CCT La Plata CONICET UNLP, Dept Quim, Fac Ciencias Exactas, RA-1900 La Plata, Buenos Aires, Argentina

[2] INTEQUI CONICET UNSL, RA-5730 San Luis, Argentina

[3] Univ Malaga, Fac Ciencias, Dept Quim Inorgan Cristalog & Mineral, E-29071 Malaga, Spain

来源：

APPLIED CATALYSIS A-GENERAL | 2011年 / 392卷 / 1-2期

关键词：

Diesel soot; Cesium nitrate; Gold; Combustion; OXIDATION; PARTICULATE; CO;

D O I：

10.1016/j.apcata.2010.10.024

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 diesel soot combustion was studied using catalysts prepared by impregnation with cesium nitrate and/or gold on zirconium oxide (ZrO2), hydrated zirconium oxide and silica (SiO2). Catalysts were characterized by colorimetry, elemental analysis, atomic absorption spectrophotometry, XRD, FTIR, TPR and XPS. Measurements of catalytic activity were performed in a thermobalance with air and in a fixed bed reactor with a NO/O-2 feed. All catalysts containing cesium nitrate exhibit a good activity for soot oxidation and the addition of gold substantially increases the CO2 generation leading the selectivity to 100% in CO2. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：45 / 56

页数：12

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