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dc.contributor.authorZhang, X
dc.contributor.authorWan, HL
dc.contributor.author万惠霖
dc.contributor.authorWeng, WZ
dc.contributor.author翁维正
dc.contributor.authorYi, XD
dc.contributor.author伊晓东
dc.date.accessioned2012-04-09T01:13:36Z
dc.date.available2012-04-09T01:13:36Z
dc.date.issued2003-08-29
dc.identifier.citationAPPLIED SURFACE SCIENCE,2003,220(1-4):117-124zh_CN
dc.identifier.issn0169-4332
dc.identifier.urihttp://dx.doi.org/10.1016/S0169-4332(03)00837-7
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/12014
dc.description.abstractThe influence of addition of sliver ions on the redox properties and catalytic performance of molybdenum-phosphate catalyst in oxidative dehydrogenation (ODH) of propane has been investigated. MoO3 and AgMoO2PO4 have been detected in Ag-doped Mo-P-O catalysts. The redox properties have been characterized by H-2-temperature-programmed reduction (TPR), electronic paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS). The catalytic performance of MoO3, Ag2O, AgMoO2PO4 and Ag-doped Mo-P-O catalysts has also been examined. The incorporation of Ag improved the number of Mo5+ species and the reducibility of the catalysts. The Ag-doped catalysts favor activity and selectivity in ODH of propane higher than the undoped catalyst. The best catalyst was obtained with Ag/Mo ratio of 0.3 and MoO3/AgMoO2PO4 ratio of 1.1. The influence of promoter Ag' on redox properties and catalytic performance is due to forming redox couple "Ag-0 + Mo6+ double left right arrow Ag+ + Mo5+" and the synergetic effect originating from "coherent interface" between MoO3 and AgMoO2PO4. (C) 2003 Elsevier B.V. All rights reserved.zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCIENCE BVzh_CN
dc.subjectoxidative dehydrogenation of propanezh_CN
dc.subjectredox propertieszh_CN
dc.subjectpromoter Agzh_CN
dc.subjectmolybdenum-phosphate catalystzh_CN
dc.titleEffect of Ag promoter on redox properties and catalytic performance of Ag-Mo-P-O catalysts for oxidative dehydrogenation of propanezh_CN
dc.typeArticlezh_CN


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