Get access

Ionic Liquid-Mediated α-Fe2O3 Shape-Controlled Nanocrystal-Supported Noble Metals: Highly Active Materials for CO Oxidation

Authors

  • Liwei Hou,

    1. Department of Environmental Engineering, Hubei Biomass-Resource Chemistry and Environmental, Biotechnology Key Laboratory, Wuhan University, P.O. Box C319, Luoyu Road 129#, Wuhan 430079 (PR China), Fax: (+86) 27-68778893
    2. Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99
    Search for more papers by this author
  • Dr. Qinghua Zhang,

    1. Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99
    Search for more papers by this author
  • Dr. François Jérôme,

    1. Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99
    Search for more papers by this author
  • Dr. Daniel Duprez,

    1. Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99
    Search for more papers by this author
  • Dr. Fabien Can,

    1. Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99
    Search for more papers by this author
  • Dr. Xavier Courtois,

    1. Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99
    Search for more papers by this author
  • Dr. Hui Zhang,

    Corresponding author
    1. Department of Environmental Engineering, Hubei Biomass-Resource Chemistry and Environmental, Biotechnology Key Laboratory, Wuhan University, P.O. Box C319, Luoyu Road 129#, Wuhan 430079 (PR China), Fax: (+86) 27-68778893
    • Hui Zhang, Department of Environmental Engineering, Hubei Biomass-Resource Chemistry and Environmental, Biotechnology Key Laboratory, Wuhan University, P.O. Box C319, Luoyu Road 129#, Wuhan 430079 (PR China), Fax: (+86) 27-68778893

      Sébastien Royer, Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99

    Search for more papers by this author
  • Dr. Sébastien Royer

    Corresponding author
    1. Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99
    • Hui Zhang, Department of Environmental Engineering, Hubei Biomass-Resource Chemistry and Environmental, Biotechnology Key Laboratory, Wuhan University, P.O. Box C319, Luoyu Road 129#, Wuhan 430079 (PR China), Fax: (+86) 27-68778893

      Sébastien Royer, Université de Poitiers - IC2MP UMR 7285 CNRS, 4 Rue Michel Brunet—Bâtiment B27, 86022 Poitiers Cedex (France), Fax: (+33) 5-49-45-34-99

    Search for more papers by this author

Abstract

Shape-controlled iron oxide nanocrystals were prepared by using an ionic liquid-mediated hydrothermal process. Different morphologies can be synthesised, such as cubes and porous nanotubes. Owing to the different morphologies developed, accessible surface area varies from a few m2 g−1 to more than 50 m2 g−1. These differences result in different oxygen mobilities, and the porous nanorods demonstrate the highest bulk oxygen mobility. Thus, all these shaped materials demonstrate higher activity for the oxidation reaction compared to the commercial reference. In addition, the favourable physical properties, that is high surface area, enable the easy dispersion of noble metal nanoparticles (platinum, palladium and gold); some of these high-surface area noble metal-containing materials demonstrate remarkable catalytic activities. Porous nanorod-supported gold nanoparticles enable the conversion of CO below 100 °C, which is far better than on commercial α-Fe2O3-supported gold for which dispersion of gold remains difficult owing to the low surface area of the commercial support.

Get access to the full text of this article

Ancillary