Get access

Room-Temperature Hydrogen Sensing with Heteronanostructures Based on Reduced Graphene Oxide and Tin Oxide

Authors

  • Dr. Patrícia A. Russo,

    1. Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal)
    Search for more papers by this author
  • Dr. Nicola Donato,

    1. Department of Matter Physics and Electronic Engineering, University of Messina, 98166 Messina (Italy)
    Search for more papers by this author
  • Dr. Salvatore Gianluca Leonardi,

    1. Department of Industrial Chemistry and Materials Engineering, University of Messina, 98166 Messina (Italy)
    Search for more papers by this author
  • Seunghwan Baek,

    1. World Class University (WCU) program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU), Seoul, 151-744 (South Korea)
    Search for more papers by this author
  • Dr. Donato E. Conte,

    1. Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal)
    Search for more papers by this author
  • Prof. Giovanni Neri,

    1. Department of Industrial Chemistry and Materials Engineering, University of Messina, 98166 Messina (Italy)
    Search for more papers by this author
  • Prof. Nicola Pinna

    Corresponding author
    1. Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal)
    2. World Class University (WCU) program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU), Seoul, 151-744 (South Korea)
    3. Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489 Berlin (Germany)
    • Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal)
    Search for more papers by this author

  • This research was supported financially by the WCU (World Class University) program through the National Research Foundation (NRF) of Korea, which is funded by the Ministry of Education, Science and Technology (R31-10013), and by Fundação para a Ciência e a Tecnologia (FCT) projects PTDC/CTM/098361/2008 and SFRH/BPD/79910/2011. Regina Rothe from the Max Planck Institute of Colloids and Interfaces is acknowledged for N2-adsorption measurements.

Abstract

original image

There's something in the air … A nanocomposite consisting of well-dispersed SnO2 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.

Ancillary