Processing of Cr doped SrTiO3 nanoparticles into high surface area aerogels and thin films?
Materials Chemistry Frontiers Pub Date: 2017-04-27 DOI: 10.1039/C7QM00155J
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.
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Journal Name：Materials Chemistry Frontiers
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CAS no.: 89640-58-4
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