Noble metal nanoparticles (MNPs) with controlled diameters in the range 5-15 nm, have been prepared by chemical wet reduction reactions starting from Au precursor in the presence of bifunctional thiolate, i.e. biphenyl-4,4'-dithiol. MNPs have been deposited on electrospinned titania nanofibers by dipping. The composite has been investigated at room temperature in resistive type device under UV irradiation. IV curves show properties of photoconduction and upon exposure towards sulphur dioxide (SO2) a sensing behaviour has been observed. The devices shoved an exponential decay for increasing values of SO2 concentration.

Hydrophobic Noble metal nanoparticles: synthesis, characterization and perspectives as gas sensing materials / Bearzotti, A; Fontana, Laura; Fratoddi, Ilaria; Venditti, Iole; Testa, Giovanna; Rasi, S.; Gatta, V.; Russo, Maria Vittoria; Zampetti, E.; Papa, Paolo; Macagnano, A.. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - ELETTRONICO. - 120:(2015), pp. 781-786. [10.1016/j.proeng.2015.08.822]

Hydrophobic Noble metal nanoparticles: synthesis, characterization and perspectives as gas sensing materials

FONTANA, LAURA;FRATODDI, Ilaria;VENDITTI, Iole;TESTA, GIOVANNA;RUSSO, Maria Vittoria;PAPA, PAOLO;
2015

Abstract

Noble metal nanoparticles (MNPs) with controlled diameters in the range 5-15 nm, have been prepared by chemical wet reduction reactions starting from Au precursor in the presence of bifunctional thiolate, i.e. biphenyl-4,4'-dithiol. MNPs have been deposited on electrospinned titania nanofibers by dipping. The composite has been investigated at room temperature in resistive type device under UV irradiation. IV curves show properties of photoconduction and upon exposure towards sulphur dioxide (SO2) a sensing behaviour has been observed. The devices shoved an exponential decay for increasing values of SO2 concentration.
Gold nanoparticles; Noble metals nanoparticles; Platinum nanoparticles; Sensing materilas; Silver nanoparticles; Titania nanofibers; Engineering (all)
01 Pubblicazione su rivista::01a Articolo in rivista
Hydrophobic Noble metal nanoparticles: synthesis, characterization and perspectives as gas sensing materials / Bearzotti, A; Fontana, Laura; Fratoddi, Ilaria; Venditti, Iole; Testa, Giovanna; Rasi, S.; Gatta, V.; Russo, Maria Vittoria; Zampetti, E.; Papa, Paolo; Macagnano, A.. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - ELETTRONICO. - 120:(2015), pp. 781-786. [10.1016/j.proeng.2015.08.822]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/843467
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