N2O reduction by activated carbon over iron bimetallic catalysts

被引：15

作者：

Carabineiro, Sonia A. ^{[1
]}

Fernandes, Francisco B. ^{[2
]}

Silva, Rui J. C. ^{[2
]}

Vital, Joaquim S. ^{[1
]}

Ramos, Ana M. ^{[1
]}

Fonseca, Isabel M. ^{[1
]}

机构：

[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, CQFB, REQUIMTE,Dept Quim, P-2829516 Caparica, Portugal

[2] Univ Nova Lisboa, Fac Ciencias & Tecnol, CENIMAT, Dept Ciencia Mat, P-2829516 Caparica, Portugal

来源：

CATALYSIS TODAY | 2008年 / 133卷 / 1-4期

关键词：

nitrous oxide (N2O); synergetic effect; conversion; kinetics; catalysis; x-ray diffraction;

D O I：

10.1016/j.cattod.2007.11.019

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The kinetics of N2O conversion with activated carbon impregnated with binary mixtures of Fe with Co, Cu, Mg, Ni, Pb and V was studied in the temperature range of 300-650 degrees C using a microbalance. Synergetic effects were found for the Fe binary mixtures. External diffusion limitations to mass transfer seem to take place in the reaction with N2O above 600 degrees C. N2O conversion was also followed and reaction products were identified as N-2 and CO2 in a stoichiometry of 2: 1. In situ XRD was carried out to identify the phases present during reactions. The ability of the catalysts to chemisorb N2O dissociatively going through redox transference of oxygen to the carbon reactive sites seems to explain catalytic activity. (c) 2007 Elsevier B. V. All rights reserved.

引用

页码：441 / 447

页数：7

共 33 条

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