Surface functionalization of mesoporous antimony doped tin oxide by metalorganic reaction |
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Authors: | Vesna Mü ller,Frederik Haase,Jiri Rathousky,Dina Fattakhova-Rohlfing |
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Affiliation: | 1. Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU), Butenandtstrasse 5-11, 81377 Munich, Germany;2. J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejskova 3, 18223 Prague 8, Czech Republic |
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Abstract: | Electrically conducting mesoporous antimony doped tin oxide was functionalized by the metalorganic reaction with several Grignard reagents. This fast and efficient grafting approach enables a direct connection of the metal atoms with the organic functionalities avoiding the formation of insulating Si–O linkers, which is of special interest for the interfacial charge transfer processes. Using this approach we introduced vinyl, allyl and phenyl groups into the pores of mesoporous ATO, which was confirmed by IR spectroscopy, TGA and nitrogen sorption measurements. We obtained a high loading of organic groups corresponding to about 50–60% of the monolayer surface coverage. The obtained mesoporous inorganic–organic hybrids can serve as a platform for incorporation of electrochemically active species. |
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Keywords: | Oxides Organometallic compounds Chemical synthesis Thermogravimetric analysis (TGA) Surface properties |
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