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Stella Vallejos, Polona Umek, Toni Stoycheva, Fatima Annanouch, Eduard Llobet, Xavier Correig, Patrizia De Marco, Carla Bittencourt and Chris Blackman Single-Step Deposition of Au- and Pt-Nanoparticle-Functionalized Tungsten Oxide Nanoneedles Synthesized Via Aerosol-Assisted CVD, and Used for Fabrication of Selective Gas Microsensor Arrays Advanced Functional Materials 23

Version of Record online: 15 OCT 2012 | DOI: 10.1002/adfm.201201871

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Tungsten oxide nanoneedles functionalized with gold or platinum nanoparticles (NPs) are synthesized using a single-step aerosol-assisted chemical vapor deposition method. They are integrated into gas-sensor platforms, which are used to discriminate analytes present in proton-exchange fuel cells. This co-deposition method is demonstrated to be effective both for incorporating metal NPs into nanostructured materials, resulting in an attractive way of tuning functionality in metal oxides, and for directly integrating these materials with devices.

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