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Preparation and characterization of porous TiO2-SiO2 mixed oxide

Published online by Cambridge University Press:  01 February 2011

Ang Thiam Peng ,
Zhong Ziyi  and
James Highfield
Ang Thiam Peng
Affiliation:
Applied Catalysis, Institute of Chemical and Engineering Sciences Ltd, 1. Pesek Road, Jurong Island, Singapore 627833, Singapore
Zhong Ziyi
Affiliation:
Applied Catalysis, Institute of Chemical and Engineering Sciences Ltd, 1. Pesek Road, Jurong Island, Singapore 627833, Singapore
James Highfield
Affiliation:
Applied Catalysis, Institute of Chemical and Engineering Sciences Ltd, 1. Pesek Road, Jurong Island, Singapore 627833, Singapore
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Abstract

A study on the comparison of porous TiO2-SiO2 mixed oxides synthesized variously via the “amine directed” method is reported. The amine capping groups were octylamine, dodecylamine, octyldecylamine, aniline, and isobutylamine. The mixed oxide is characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), infrared spectroscopy (IR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and Brunauer-Emmett-Teller analysis (BET). While XRD, SEM and TEM provide mainly (bulk) structural information on the mixed oxide preparations, BET (N2 physisorption) probes into their surface area and texture. IR evidence suggests that intimate chemical mixing of both oxides has occurred, while BET measurements show that high surface areas are attainable and that the mixed oxide is more thermally stable than pure (control) samples of TiO2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 848: Symposium FF – Solid-State Chemistry of Inorganic Materials V , 2004 , FF3.25
Copyright
Copyright © Materials Research Society 2005

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References

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