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Selective synthesis of carbon monoxide via formates in reverse water-gas shift reaction over alumina-supported gold catalyst

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Title: Selective synthesis of carbon monoxide via formates in reverse water-gas shift reaction over alumina-supported gold catalyst
Authors: Ishito, Nobuhiro Browse this author
Hara, Kenji Browse this author →KAKEN DB
Nakajima, Kiyotaka Browse this author
Fukuoka, Atsushi Browse this author →KAKEN DB
Keywords: Reverse water-gas shift reaction
Carbon dioxide
Hydrogen
Formate
Carbon monoxide
Alumina
Gold
Issue Date: Mar-2016
Publisher: Elsevier
Journal Title: Journal of energy chemistry
Volume: 25
Issue: 2
Start Page: 306
End Page: 310
Publisher DOI: 10.1016/j.jechem.2015.12.005
Abstract: Thermal decomposition of formic acid on SiO2, CeO2 and gamma-Al2O3 was studied as an elementary step of reverse water-gas shit reaction (RWGS) over supported Au catalysts. gamma-Al2O3 showed the highest CO selectivity among the tested oxides in the decomposition of formic acid. Infrared spectroscopy showed the formation of four formate species on gamma-Al2O3: three eta(1)-type and one mu(2)-type species, and these formates decomposed to CO at 473 K or higher. Au-loaded gamma-Al2O3 samples were prepared by a deposition precipitation method and used as catalysts for RWGS. The supported Au catalyst gave CO with high selectivity over 99% from CO2 and H-2, which is attributed to the formation of formates on Au and subsequent decomposition to CO on gamma-Al2O3.
Rights: (C) 2015 Science Press and Dalian Institute of Chemical Physics. All rights reserved. © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/68385
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 福岡 淳

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