Issue 3, 2010
From the journal:

New Journal of Chemistry

Insight into the structure and localization of the titania overlayer in TiO2-coated SBA-15 materials

Fuxiang Zhang,ab   Xavier Carrier,ab   Jean-Marc Krafft,ab   Yuji Yoshimurac  and  Juliette Blanchard*ab  

* Corresponding authors

a UPMC Université Paris 06, UMR 7197, Laboratoire de Réactivité de Surface, F-75005 Paris, France

b CNRS UMR 7197, Laboratoire de Réactivité de Surface, F-75005 Paris, France
E-mail: juliette.blanchard@upmc.fr
Fax: +33 144276033
Tel: +33 144273630

c Hydrotreating Catalysis, Research Center for New Fuels and Vehicle Technology, National Institute of Advanced Industrial Science and Technology, Ibaraki 305-8565, Japan

Abstract

Titania-coated SBA-15 materials (Ti-SBA-n with n = 1–4) were synthesized by successive grafting of titanium isopropoxide in iso-propanol. The investigation of the nature and localization of the TiO2 overlayer allowed us to conclude that there was formation of very small (UV-visible, EXAFS, XANES), ca. 2 nm or smaller (XRD and TEM) TiO2 domains that cover only partially the silica surface (CO adsorption). These nano TiO2 domains are located on or close to the mesopore surface (EELS, XRD and N2-sorption) rather than in the micropores as previously reported.

Graphical abstract: Insight into the structure and localization of the titania overlayer in TiO2-coated SBA-15 materials

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Article information

DOI
https://doi.org/10.1039/B9NJ00439D
Article type
Paper
Submitted
31 Aug 2009
Accepted
17 Nov 2009
First published
18 Jan 2010

New J. Chem., 2010,34, 508-516

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Insight into the structure and localization of the titania overlayer in TiO2-coated SBA-15 materials

F. Zhang, X. Carrier, J. Krafft, Y. Yoshimura and J. Blanchard, New J. Chem., 2010, 34, 508 DOI: 10.1039/B9NJ00439D

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