Preparation and Structure Characterization of Pt Clusters on Titania Modified MCM-41

Abstract

Abstract: Pt clusters deposited on titania-modified MCM-41 were synthesized by a photodeposition method through PtCl₆^2- and titania-modified MCM-41.
The structure and optical properties of the samples were investigated by XRD, XPS, N₂ adsorption/desorption isotherms and diffuse reflectance
UV-Vis absorption spectroscopy. The results of XPS showed that the deposited Pt was in metal state. Although the BET surface areas and pore volume
decreased because of the introduction of Pt, the pore diameter distribution was almost not affected. The curve of Pt deposited titania modified MCM-41
in UV-Vis absorption spectrum was different from that of titania modified MCM-41.

Key words: MCM-41, titania modified MCM-41, MCM-TiO₂/Pt, photodeposition

CLC Number:

O611

ZHENG Shan,GAO Lian,GUO Jing-Kun. Preparation and Structure Characterization of Pt Clusters on Titania Modified MCM-41[J]. Journal of Inorganic Materials.

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Preparation and Structure Characterization of Pt Clusters on Titania Modified MCM-41

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