Adsorption of water on polycrystalline copper: relevance to the water gas shift reaction
作者： E COLBOURN
DOI: 10.1016/0021-9517(91)90132-N
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摘要: This paper is concerned with the interaction of water a polycrystalline copper surface. It shows that small fraction (7–8%) surface will readily dissociatively chemisorb water, while major portion adsorbs in molecular form [ΔH(ads) = 45 kJ mol−1]. The structure sensitivity adsorption on shown to have critical effect proclivity act as catalyst for gas shift reaction. mechanics this process appear involve oxidation (by water), followed by facile reduction carbon monoxide) and subsequent regeneration active sites recombinative desorption atomic hydrogen. activation energy reaction 67–75 range 350–400 K. presence adsorbed formate species be inconsequential progress
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sci-hub.se 参考文章(20)
T VANHERWIJNEN, Kinetics and mechanism of the CO shift on CuZnO: II. Kinetics of the decomposition of formic acid Journal of Catalysis. ,vol. 63, pp. 94- 101 ,(1980) , 10.1016/0021-9517(80)90062-7
T VANHERWIJNEN, Kinetics and mechanism of the CO shift on CuZnO: 1. Kinetics of the forward and reverse CO shift reactions Journal of Catalysis. ,vol. 63, pp. 83- 93 ,(1980) , 10.1016/0021-9517(80)90061-5
M Bowker, RA Hadden, H Houghton, JNK Hyland, KC Waugh, The mechanism of methanol synthesis on copper/zinc oxide/alumina catalysts Journal of Catalysis. ,vol. 109, pp. 263- 273 ,(1988) , 10.1016/0021-9517(88)90209-6
G CHINCHEN, The measurement of copper surface areas by reactive frontal chromatography Journal of Catalysis. ,vol. 103, pp. 79- 86 ,(1987) , 10.1016/0021-9517(87)90094-7
K. Bange, D.E. Grider, T.E. Madey, J.K. Sass, The surface chemistry of H2O on clean and oxygen-covered Cu(110) Surface Science. ,vol. 137, pp. 38- 64 ,(1984) , 10.1016/0167-2584(84)90207-X
Charles T. Campbell, Bruce E. Koel, A model study of alkali promotion of water-gas shift catalysts: Cs/Cu(111) Surface Science. ,vol. 186, pp. 393- 411 ,(1987) , 10.1016/S0039-6028(87)80384-9
Chak-tong Au, Juraj Breza, M.Wyn Roberts, Hydroxylation and dehydroxylation at Cu(III) surfaces Chemical Physics Letters. ,vol. 66, pp. 340- 343 ,(1979) , 10.1016/0009-2614(79)85030-7
Hiroshi Uchida, Norio Isogai, Masaaki Oba, Toji Hasegawa, The Zinc Oxide-Copper Catalyst for Carbon Monoxide-Shift Conversion. I. The Dependency of the Catalytic Activity on the Chemical Composition of the Catalyst Bulletin of the Chemical Society of Japan. ,vol. 40, pp. 1981- 1986 ,(1967) , 10.1246/BCSJ.40.1981
E.G.M. Kuijpers, R.B. Tjepkema, W.J.J. van der Wal, C.M.A.M. Mesters, S.F.G.M. Spronck, J.W. Geus, Structure-sensitivity of the water-gas shift reaction over highly active Cu/SiO2 catalysts Applied Catalysis. ,vol. 25, pp. 139- 147 ,(1986) , 10.1016/S0166-9834(00)81230-0
P. Hollins, J. Pritchard, Interactions of CO molecules adsorbed on Cu(111) Surface Science. ,vol. 89, pp. 486- 495 ,(1979) , 10.1016/0039-6028(79)90633-2