caa a22 4500 477080928 CHVBK 20180405111449.0 cr unu---uuuuu 170330e19960501xx s 000 0 eng 10.1007/BF02431180 doi (NATIONALLICENCE)springer-10.1007/BF02431180 A Fourier-transform infrared study of CO2 and CO2/H2 interactions with caesium-doped copper catalysts [Elektronische Daten] [Graeme Millar, Colin Rochester, Kenneth Waugh] FTIR spectra are reported of CO2 and CO2/H2 on a silica-supported caesium-doped copper catalyst. Adsorption of CO2 on a "caesium”/silica surface resulted in the formation of CO2 − and complexed CO species. Exposure of CO2 to a caesium-doped reduced copper catalyst produced not only these species but also two forms of adsorbed carboxylate giving bands at 1550, 1510, 1365 and 1345 cm−1. Reaction of carboxylate species with hydrogen at 388 K gave formate species on copper and caesium oxide in addition to methoxy groups associated with caesium oxide. Methoxy species were not detected on undoped copper catalyst suggesting that caesium may be a promoter for the methanol synthesis reaction. Methanol decomposition on a caesium-doped copper catalyst produced a small number of formate species on copper and caesium oxide. Methoxy groups on caesium oxide decomposed to CO and H2, and subsequent reaction between CO and adsorbed oxygen resulted in carboxylate formation. Methoxy species located at interfacial sites appeared to exhibit unusual adsorption properties. J.C. Baltzer AG, Science Publishers, 1996 copper catalysts, modified with caesium nationallicence copper catalysts, CO2/H2 adsorption nationallicence Millar Graeme Department of Chemistry, University of Dundee, DD1 4HN, Dundee, UK aut Rochester Colin Department of Chemistry, University of Dundee, DD1 4HN, Dundee, UK aut Waugh Kenneth Department of Chemistry, UMIST, PO Box 88, M60 1QD, Manchester, UK aut Topics in Catalysis Baltzer Science Publishers, Baarn/Kluwer Academic Publishers 3/1-2(1996-05-01), 103-114 1022-5528 3:1-2<103 1996 3 11244 https://doi.org/10.1007/BF02431180 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02431180 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Millar Graeme Department of Chemistry, University of Dundee, DD1 4HN, Dundee, UK aut NATIONALLICENCE 700 1- Rochester Colin Department of Chemistry, University of Dundee, DD1 4HN, Dundee, UK aut NATIONALLICENCE 700 1- Waugh Kenneth Department of Chemistry, UMIST, PO Box 88, M60 1QD, Manchester, UK aut NATIONALLICENCE 773 0- Topics in Catalysis Baltzer Science Publishers, Baarn/Kluwer Academic Publishers 3/1-2(1996-05-01), 103-114 1022-5528 3:1-2<103 1996 3 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer