4.3 Article

Formation of ε-Fe2O3 nanocrystals through segregation in mesoporous silica particles

Journal

CHEMISTRY LETTERS
Volume 37, Issue 8, Pages 814-815

Publisher

CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2008.814

Keywords

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Funding

  1. Ministry of Education, Culture, Sports, Science and Technology, Japan [19655078]
  2. Grants-in-Aid for Scientific Research [19655078] Funding Source: KAKEN

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Nanosized epsilon-Fe2O3 crystals with a diameter below 20 nm were successfully prepared at 600 degrees C in a mesoporous Silica matrix. The formation of the metastable iron oxide Occurred through nanoscale segregation in an immiscible SiO-Fe2O3 system having a mesoporous structure. The nanocrystals incorporated into ca. 50 nm-size particles of the mesoporous Silica exhibited a coercive field up to 8 kOe.

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