Hot-electron-induced dissociation of H2 on gold nanoparticles supported on SiO2

Journal of the American Chemical Society
Shaunak MukherjeeNaomi J Halas

Abstract

Hot-electron-induced photodissociation of H2 was demonstrated on small Au nanoparticles (AuNPs) supported on SiO2. The rate of dissociation of H2 was found to be almost 2 orders of magnitude higher than that observed on equivalently prepared AuNPs on TiO2. The rate of H2 dissociation was found to be linearly dependent on illumination intensity with a wavelength dependence resembling the absorption spectrum of the plasmon of the AuNPs. This result provides strong additional support for the hot-electron-induced mechanism for H2 dissociation in this photocatalytic system.

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Citations

Jan 23, 2016·Nano Letters·Linan ZhouNaomi J Halas
Jan 26, 2016·ACS Applied Materials & Interfaces·Amreen Ara HussainArup Ratan Pal
Oct 27, 2015·ACS Applied Materials & Interfaces·Molla R IslamMichael J Serpe
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Mar 17, 2016·ACS Nano·Charlene NgDaniel E Gomez
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Jul 15, 2015·Journal of the American Chemical Society·Hirokatsu SakamotoTakayuki Hirai
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