Attachment of metal nanoparticles onto the surface of carbon nanotubes is a very interesting approach to produce metal nanoparticle-nanotube composites for their utility in various applications such catalysis and molecular sensing. In recent years, elegent strategies to produce such composites have been devised, which reliably provide functionalized materials in good yields. But due to the limited availability of such materials their applications has been quite limited in scope.In this presentation, we will disclose a new and high yielding route which we have devised to fabricate carbon nanotube-Pt nanoparticle composites in one pot. This strategy is based on our previous work where well defined poly(methylhydro)siloxanes are covalently attached to carbon nanotubes via alcoholysis reaction of hydroxyl carbon nanotubes. In the same pot, Pt precursors were added, which produced Pt-nanoparticles attached to nanotubes via polysiloxanes. The resulting composites were analyzed by various techniques and their property profiling was carried out using NMR, IR, TEM, and SEM techniques. We also have carried out mechanistic studies of the production and attachment of Pt-nanoparticles onto the carbon nanotube surface. In addition we will also present the catalytic activities of Pt-functionalized carbon nanotubes.

One pot high yielding approach to a covalent "Ensamble" of polyhydrosiloxane, carbon nanotubes, and Pt-nanoparticles

248th National Meeting (2014)

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