Mechanochemical synthesis of TiO2/NiFe2O4 magnetic catalysts for operation under RF field

Thomas K. Houlding, Pengzhao Gao, Volkan Degirmenci, Kirill Tchabanenko, Evgeny V. Rebrov

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Composite NiFe2O4–TiO2 magnetic catalysts were prepared by mechanochemical synthesis from a mixture of titania supported nickel ferrite nanoparticles and P25 titania (Evonic). The former provides fast and efficient heating under radiofrequency field, while the latter serves as an active catalyst or catalyst support. The highest heating rate was observed over a catalyst prepared for a milling time of 30 min. The catalytic activity was measured over the sulfated composite catalysts in the condensation of aniline and 3-phenylbutyric acid in a stirred tank reactor and in a continuous RF heated flow reactor in the 140–170 °C range. The product yield of 47% was obtained over the sulfated P25 titania catalyst in the flow reactor.
Original languageEnglish
Pages (from-to)175-180
Number of pages6
JournalMaterials Science and Engineering B
Volume193
Early online date11 Dec 2014
DOIs
Publication statusPublished - Mar 2015

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