Issue 31, 2013
From the journal:

RSC Advances

Effect of combination sequence of precursors on the structural and catalytic properties of Ti–SBA-15†

Feng-Ting Kuo,a   Shih-Yuan Chen,ab   Tsung-Han Lin,a   Jyh-Fu Leec  and  Soofin Cheng*a  

* Corresponding authors

a Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
E-mail: chem1031@ntu.edu.tw
Fax: +886-2-33668671
Tel: +886-2-33661662

b Research Center for New Fuels and Vehicle Technology, National Institute of Advanced Industrial Science and Technology, Tsukuba Central-5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan

c Research Division, National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan

Abstract

The combination sequence of Ti and Si precursors (TTIP and TEOS) in the synthesis solution of Ti-incorporated SBA-15 mesoporous silica (shortly termed Ti–SBA-15) was found for the first time to be critical for the distribution of tetrahedrally (Td) coordinated Ti(IV) sites in the resultant Ti–SBA-15. It was found that TTIP pre-assembled with P123 in the synthesis solution for 3 h before the addition of TEOS gave Td-coordinated Ti(IV) sites predominately incorporated near the superficial regions of the framework and were highly accessible to the reactants in catalytic reactions.

Graphical abstract: Effect of combination sequence of precursors on the structural and catalytic properties of Ti–SBA-15

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Article information

DOI
https://doi.org/10.1039/C3RA41304G
Article type
Communication
Submitted
19 Mar 2013
Accepted
29 May 2013
First published
29 May 2013

RSC Adv., 2013,3, 12604-12610

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Effect of combination sequence of precursors on the structural and catalytic properties of Ti–SBA-15

F. Kuo, S. Chen, T. Lin, J. Lee and S. Cheng, RSC Adv., 2013, 3, 12604 DOI: 10.1039/C3RA41304G

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