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The surfaces of carbon nanotubes (CNTs) were covered with thin silica layers through the application of 3-aminopropyltriethoxysilane (APTES) in order to enhance the deposition of precious metal and transition metal oxide nanoparticles. Pt metal particles smaller than 2nm in diameter could be deposited, using a conventional impregnation method, on CNTs coated with silica layers, whereas Pt particles...
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