Preformed iron oxide nanoparticles have been successfully assembled onto alumina and MCM-41 support materials. The particles are found to disperse evenly over the surface of the silicate; however, in the case of the alumina we find that in addition to areas of even distribution there is also some clustering of the particles. The materials are stable under heat treatment, with no signs of further aggregation during calcination. We investigate the reducibility of the materials through H₂-TPR studies and we find that the particles are reducible around 500–550 °C. The reduction process is complete at temperatures where MCM-41 can undergo degradation, supporting that the alumina based materials are more suited to the multiple base oxidation reduction steps in the catalytic cycle.

Item Type:	Refereed Article
Keywords:	nanoparticles, iron oxide, MCM-41, alumina, Fischer–Tropsch
Research Division:	Chemical Sciences
Research Group:	Inorganic chemistry
Research Field:	F-block chemistry
Objective Division:	Expanding Knowledge
Objective Group:	Expanding knowledge
Objective Field:	Expanding knowledge in the chemical sciences
UTAS Author:	Fuller, RO (Dr Rebecca Fuller)
ID Code:	135618
Year Published:	2014
Web of Science® Times Cited:	10
Deposited By:	Chemistry
Deposited On:	2019-11-05
Last Modified:	2019-12-11
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