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Ultrasound irradiation is proving to be an excellent method for the synthesis of mesoporous oxides. Here is reported the preparation of titania containing a framework of wormholes—a structural motif of importance for catalysis. Using ultrasonication with a long-chain organic amine as a structure-directing agent, the synthesis was complete in a few hours (the Figure shows particles of the as-prepared material).
Wang et al. (Tue,) studied this question.