Room-temperature hydrogen sensing with heteronanostructures based on reduced graphene oxide and tin oxide
Patrícia A Russo1, Nicola Donato, Salvatore Gianluca Leonardi
1Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
Angewandte Chemie (International Ed. in English)
|October 2, 2012
Abstract:
There's something in the air … A nanocomposite consisting of well-dispersed SnO(2) and Pt nanoparticles on reduced graphene oxide (see the high-resolution TEM image) exhibited very high responses to hydrogen at concentrations between 0.5 and 3% in air, with response times of 3-7 s and recovery times of 2-6 s. The sensor was prepared by a straightforward microwave-assisted non-aqueous sol-gel approach.
