Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 23, Issue -, Pages 67-71Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2014.07.043
Keywords
CO2; Reverse water gas shift reaction; Fe
Funding
- National Research Foundation of Korea (NRF) - Korea government (MEST) [2012R1A1B3000992]
- Korea CCS R&D Center (KCRC) - Korea government (Ministry of Education, Science and Technology) [2012M1A8A1056409]
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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.
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