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Elsevier, Scripta Materialia, 2(63), p. 155-158

DOI: 10.1016/j.scriptamat.2010.03.043

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Fe2TiO5/α-Fe2O3 nanocomposite hollow spheres with enhanced gas-sensing properties

Journal article published in 2010 by R. Yu ORCID, Z. Li, D. Wang, X. Lai, C. Xing, M. Yang, X. Xing
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Hollow spheres of Fe2TiO5/α-Fe2O3 nanocomposite were prepared via a simple impregnating method using carbonaceous polysaccharide microspheres as hard templates. These hollow spheres possessed porous shells contributed by homogeneously arranged α-Fe2O3 and Fe2TiO5 nanocrystals. With the higher specific-surface area provided by the porous spherical shells and lower grain boundary resistant between α-Fe2O3 and Fe2TiO5, these hollow spheres showed much improved gas-sensing properties for some organic gases. A sample with a Fe2TiO5/α-Fe2O3 ratio of about 1:1 showed the optimum gas-sensing value.