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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 Fuller
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.

History

Publication title

Journal of Colloid and Interface Science

Volume

417

Pagination

396-401

ISSN

0021-9797

Department/School

School of Natural Sciences

Publisher

Academic Press Inc Elsevier Science

Place of publication

525 B St, Ste 1900, San Diego, USA, Ca, 92101-4495

Rights statement

Copyright 2013 Elsevier Inc.

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the chemical sciences

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