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Processing of Cr doped SrTiO3 nanoparticles into high surface area aerogels and thin films

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Abstract

We present the nonaqueous sol–gel synthesis of crystalline SrTi1−xCrxO3 (x = 0, 0.3, 2, 5, 10%) nanoparticles and their processing into highly concentrated dispersions in ethanol by surface functionalization with 2-[2-(2-methoxyethoxy) ethoxy] acetic acid (MEEAA). These stable nanoparticle dispersions can then be assembled into 2- and 3-dimensional architectures such as films and aerogels. Homogeneous transparent films with a compact microstructure and a thickness of 140 nm are prepared from the dispersion by dip coating, while efficient destabilization and supercritical drying results in nanostructured bulk aerogels with a high surface area of up to 370 m2 g−1.

Graphical abstract: Processing of Cr doped SrTiO3 nanoparticles into high surface area aerogels and thin films

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Publication details

The article was received on 06 Apr 2017, accepted on 27 Apr 2017 and first published on 27 Apr 2017


Article type: Research Article
DOI: 10.1039/C7QM00155J
Citation: Mater. Chem. Front., 2017, Advance Article
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    Processing of Cr doped SrTiO3 nanoparticles into high surface area aerogels and thin films

    F. Rechberger, G. Ilari, C. Willa, E. Tervoort and M. Niederberger, Mater. Chem. Front., 2017, Advance Article , DOI: 10.1039/C7QM00155J

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