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Preparation of Highly Dispersed Iron Oxide Nanoparticles in Amine-Modified SBA-15

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Abstract

Silica-supported iron oxide nanoparticles are prepared by precipitation within the pores of amine-functionalized SBA-15 silica. The loading of the iron oxide possible by this method is at least 11 wt%. STEM and TEM images show that the supported particles have a uniform diameter (average ∼ 4.0 nm) and are well dispersed. The supported iron oxide nanoparticles are amorphous after calcination at 300°C and, consistent with their nanoscale dimensions, are superparamagnetic at room temperature.

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Authors and Affiliations

  1. University of Kentucky, 40506-0046, Lexington, KY, U.S.A.

    Bing Tan, Wentao Xu, Alan Dozier & Stephen E. Rankin

  2. Department of Physics and Astronomy, University of Kentucky and Department of Chemical and Materials Engineering, U.S.A.

    Bing Tan

Authors
  1. Bing Tan
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  2. Wentao Xu
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  3. Alan Dozier
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  4. Stephen E. Rankin
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Correspondence to Stephen E. Rankin.

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Tan, B., Xu, W., Dozier, A. et al. Preparation of Highly Dispersed Iron Oxide Nanoparticles in Amine-Modified SBA-15. MRS Online Proceedings Library 876, 411 (2005). https://doi.org/10.1557/PROC-876-R4.11

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  • DOI: https://doi.org/10.1557/PROC-876-R4.11

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