Characterisation and reactivity of activated carbon supported platinum catalysts prepared by fluidised bed organometallic chemical vapour deposition (FBOMCVD)
| Autor: | Yolande Kihn, A.E. Aksoylu, Ph. Kaick, Roselyne Feurer, Ph. Serp, Joaquim L. Faria, José L. Figueiredo, A.M.T. Pacheco, R. Corratgé, J-C. Hierso |
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| Rok vydání: | 2000 |
| Předmět: |
inorganic chemicals
Materials science Catalyst support Inorganic chemistry technology industry and agriculture chemistry.chemical_element Chemical vapor deposition engineering.material equipment and supplies Rhodium Catalysis chemistry engineering Deposition (phase transition) Noble metal Carbon nanotube supported catalyst Platinum |
| DOI: | 10.1016/s0167-2991(00)80329-8 |
| Popis: | Publisher Summary In the course of developing new methods for the preparation of heterogeneous catalysts, this chapter illustrates that the combination of organometallic chemical vapor deposition (OMCVD) and the fluidization of a bed of porous particles is a powerful method to prepare supported catalysts. Highly dispersed deposits of rhodium, palladium, and platinum on metal oxide supports were obtained in a single step using a fluidized bed reactor. The method of chemical vapor deposition (CVD) allows direct deposition of the active phase onto the catalyst support by means of the reaction between surface sites containing oxygenated groups and the vapor of a suitable organometallic compound. Using silica or alumina with large specific areas—around 200 m 2 g -1 —the presence of hydroxyl groups on the surface allows the facile grafting of small and dispersed particles of the noble metal (2–5 nm). |
| Databáze: | OpenAIRE |
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