Title

Low-temperature synthesis of ordered nanoporous titanium dioxide loaded with platinum nanocatalyst

Document Type

Conference Proceeding

Date of Original Version

12-1-2007

Abstract

Highly dispersed Pt nanocatalyts supported on a structurally organized meso/nanoporous TiO2 support possessing a hexagonal arrangement of pores using a highly viscous surfactant template separating nanoscopic bicontinuous channels of water and isooctane were studied. The TiO2 support formed by hydrolysis and condensation of the isooctane-soluble precursor titanium isopropoxide, inherited the morphology of the surfactant template. Sequential reduction of a Pt salt in the aqueous channels during TiO2 synthesis formed Pt nanoparticles on the TiO2 pore surfaces, with negligible agglomeration. The catalytic activity of these nanocomposites for the CO oxidation reaction over a wide temperature range was comparable to that of a commercial catalyst support with 4-fold larger specific surface area. This is an abstract of a paper presented at the AIChE Annual Meeting (Salt Lake, UT 11/4-9/2007).

Publication Title

2007 AIChE Annual Meeting

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