2024-03-29T15:51:41Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/683852022-11-17T02:08:08Zhdl_2115_20059hdl_2115_151Selective synthesis of carbon monoxide via formates in reverse water-gas shift reaction over alumina-supported gold catalystIshito, Nobuhiro1000010333593Hara, KenjiNakajima, Kiyotaka1000080189927Fukuoka, Atsushiopen access(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/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 InternationalReverse water-gas shift reactionCarbon dioxideHydrogenFormateCarbon monoxideAluminaGold501Thermal 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.Elsevier2016-03engjournal articleAMhttp://hdl.handle.net/2115/68385https://doi.org/10.1016/j.jechem.2015.12.0052095-4956Journal of energy chemistry252306310https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/68385/1/manuscript_revise_HCOOH_CO2_151205_af.pdfapplication/pdf3.28 MB2016-03https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/68385/2/supporting_information_151130_ni.pdfapplication/pdf569.94 KB2016-03