Reverse water gas shift reaction catalyzed by Fe nanoparticles with high catalytic activity and stability

被引：78

作者：

Kim, Dae Han ^{[1
]}

Han, Sang Wook ^{[1
]}

Yoon, Hye Soo ^{[1
]}

Kim, Young Dok ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2015年 / 23卷

基金：

新加坡国家研究基金会;

关键词：

CO2; Reverse water gas shift reaction; Fe; CARBON-DIOXIDE HYDROGENATION; DISSOCIATION; TEMPERATURE; ADSORPTION; METHANOL; FE(110); FE3O4; CO;

D O I：

10.1016/j.jiec.2014.07.043

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Unsupported Fe-oxide nanoparticles were used as catalysts for reverse water gas shift (RWGS) reaction at 600 degrees C, which showed a high catalytic activity and stability. Using transmission electron microscopy, nanoparticles of Fe-oxide was found to be resistant toward agglomeration during the RWGS reaction. Xray photoelectron spectroscopy and X-ray diffraction studies revealed that C and O formed by the reaction between Fe-oxide surface and reagent and product (CO and CO2) of the RWGS reaction diffused into the bulk of Fe-oxide nanocatalysts. As a consequence, structure of catalytically active surface, consisting of metallic Fe, was maintained during the RWGS reaction, resulting in a long-term stability of catalytic activity. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：67 / 71

页数：5

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