File(s) under permanent embargo
The use of preformed nanoparticles in the production of heterogeneous catalysts
journal contribution
posted on 2023-05-20, 08:04 authored by Hondow, N, Rebecca FullerRebecca FullerPreformed 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.
History
Publication title
Journal of Colloid and Interface ScienceVolume
417Pagination
396-401ISSN
0021-9797Department/School
School of Natural SciencesPublisher
Academic Press Inc Elsevier SciencePlace of publication
525 B St, Ste 1900, San Diego, USA, Ca, 92101-4495Rights statement
Copyright 2013 Elsevier Inc.Repository Status
- Restricted