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Thermally Stable, Silica-Doped ε-WO3 for Sensing of Acetone in the Human Breath

Righettoni, M; Tricoli, Antonio; Pratsinis, S.E


Acetone in the human breath is a key marker for noninvasive diagnosis of diabetes. Here, sensing films of pure and SiO2-doped WO3 nanoparticles have been made, directly deposited and in situ annealed onto interdigitated electrodes by scalable flame aerosol technology. A unique innovation here is that these films consist of ε-WO3, a metastable phase that has a high selectivity to acetone. The effect of nontoxic Si doping on the ε-phase content and crystal and grain sizes was investigated and...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Chemistry of Materials
DOI: 10.1021/cm1001576


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