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Synthesis of Transition Metal Nanocatalysts Immobilized on to the Poly (Ionic Loquid) Coated Graphene and Utilization in Organic Transformations

Safaie Ashtiani, Niloufar | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47644 (03)
  4. University: Sharif University of Technology
  5. Department: Chemistry
  6. Advisor(s): Pourjavadi, Ali
  7. Abstract:
  8. Nowadays, because of the importance of saving energy resources and also environmental issues, utilization of catalysts are increased in industry and products. In the last decades, a lot of efforts have been devoted to develop novel methods for heterogenizing of the homogeneous catalyst in order to combine the advantages of the both the homogeneous and the heterogeneous catalysts. Among the different solid supports, graphene with high surface area and distinctive mechanical and electronical properties have been introduces as an emerging support for heterogenizing of the homogeneous catalysts. On the other hand, the use of ionic liquid has been developed due to a broad range of polarity, low vapor pressure and ease of separation. However ionic liquids did not attarct a lot of considerations due to homogeneous nature, being expensive and difficulties in synthesis. These compounds as a coverage agent can increase the permeability of reactants into the catalyst and as a result increase the catalytic activity.
    In this study we intended to prepare the catalyst which could be easily separated and improve the chemical conversions. For this purpose, nano composite consist of ionic liquid polymer and graphene oxide will be prepared. In continue, the surface of the nanocomposite, will be functionalized with active metal liks copper and palladium. The advantages of prepared nanocomposite are chemical and mechanical stability due to presence of graphene oxide. The prepared catalysts will be used in different synthesis like triazole synthesis and Suzuki and Heck coupling
  9. Keywords:
  10. Graphene ; Catalyst Properties ; Ionic Liquids Polymer

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