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Plasma-assisted synthesis of Ag/ZnO nanocomposites: first example of photo-induced H2 production and sensing (Articolo in rivista)

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Plasma-assisted synthesis of Ag/ZnO nanocomposites: first example of photo-induced H2 production and sensing (Articolo in rivista) (literal)

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Q. Simon, D. Barreca, D. Bekermann, A. Gasparotto, C. Maccato, E. Comini, V. Gombac, P. Fornasiero, O.I. Lebedev, S. Turner, A. Devi, R.A. Fischer, G. Van Tendeloo (2011)
Plasma-assisted synthesis of Ag/ZnO nanocomposites: first example of photo-induced H2 production and sensing
in International journal of hydrogen energy
(literal)

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Q. Simon, D. Barreca, D. Bekermann, A. Gasparotto, C. Maccato, E. Comini, V. Gombac, P. Fornasiero, O.I. Lebedev, S. Turner, A. Devi, R.A. Fischer, G. Van Tendeloo (literal)

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1,3,4,5: Department of Chemistry, Padova University and INSTM, 35131 Padova, Italy 2: CNR-ISTM and INSTM, Department of Chemistry, Padova University, 35131 Padova, Italy 6: CNR-IDASC, SENSOR Lab, Department of Chemistry and Physics, Brescia University, 25133 Brescia, Italy 7,8: Department of Chemical and Pharmaceutical Sciences, Trieste University, INSTM and ICCOM Trieste Research Unit, 34127 Trieste, Italy 9: Laboratoire CRISMAT, UMR 6508, CNRS-ENSICAEN, 14050 Caen CEDEX 4, France 10,13: EMAT, Antwerp University, 2020 Antwerpen, Belgium 11,12: Lehrstuhl fur Anorganische Chemie II, Ruhr-University Bochum, 44780 Bochum, Germany (literal)

Titolo

Plasma-assisted synthesis of Ag/ZnO nanocomposites: first example of photo-induced H2 production and sensing (literal)

Abstract

Ag/ZnO nanocomposites were developed by a plasma-assisted approach. The adopted strategy exploits the advantages of Plasma Enhanced-Chemical Vapor Deposition (PE-CVD) for the growth of columnar ZnO arrays on Si(100) and Al2O3 substrates, in synergy with the infiltration power of the Radio Frequency (RF)-sputtering technique for the subsequent dispersion of different amounts of Ag nanoparticles (NPs). The resulting composites, both as-prepared and after annealing in air, were thoroughly characterized with particular attention on their morphological organization, structure and composition. For the first time, the above systems have been used as catalysts in the production of hydrogen by photo-reforming of alcoholic solutions, yielding a stable H2 evolution even by the sole use of simulated solar radiation. In addition, Ag/ZnO nanocomposites presented an excellent response in the gas-phase detection of H2, opening attractive perspectives for advanced technological applications. (literal)

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