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|Title:||Preparation of highly dispersed molybdenum on alumina by thermal decomposition of Mo(CO)6||Authors:||Jaenicke, S.
Metal dispersion measurement
|Issue Date:||1999||Citation:||Jaenicke, S.,Loh, W.L. (1999). Preparation of highly dispersed molybdenum on alumina by thermal decomposition of Mo(CO)6. Catalysis Today 49 (1-3) : 123-130. ScholarBank@NUS Repository.||Abstract:||Supported molybdenum catalysts are uniquely suitable for a number of reactions, notably the metathesis reaction between hydrocarbons with terminal double bonds. Heterogeneous catalysis offers advantages over homogenous routes with respect to catalyst recycling and separation. A way to produce extremely highly dispersed Mo-metal particles on completely dehydroxylated surfaces from Mo(CO)6 is described. The metal dispersion is found to depend on: metal loading - higher loading leads to lower dispersion and larger particles; initial dispersion of the precursor - a dry process by subliming the Mo(CO)6 onto the support was found to give a lower metal dispersion than a wet impregnation process, starting from a pentane solution of Mo(CO)6. A method for the determination of Mo-dispersion on highly activated alumina surfaces by CO chemisorption has been established. © 1999 Elsevier Science B.V. All rights reserved.||Source Title:||Catalysis Today||URI:||http://scholarbank.nus.edu.sg/handle/10635/94607||ISSN:||09205861|
|Appears in Collections:||Staff Publications|
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