Cover Picture: Catalytic Synthesis of Neutral H2O2 Solutions from O2 and H2 by a Fuel Cell Reaction (ChemSusChem 12/2008)

Authors

  • Ichiro Yamanaka Prof.,

    1. Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552 (Japan), Fax: (+81) 3-5734-2144
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  • Satoshi Tazawa,

    1. Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552 (Japan), Fax: (+81) 3-5734-2144
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  • Toru Murayama,

    1. Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552 (Japan), Fax: (+81) 3-5734-2144
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  • Ryo Ichihashi,

    1. Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552 (Japan), Fax: (+81) 3-5734-2144
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  • Noriko Hanaizumi

    1. Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552 (Japan), Fax: (+81) 3-5734-2144
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Abstract

original image

The cover picture shows the scheme of a polymer electrolyte membrane fuel cell (PEMFC) reactor for the catalytic synthesis of neutral solutions of hydrogen peroxide from hydrogen and oxygen. The industrial synthesis of H2O2 is currently limited to the multistep anthraquinone method, and the production costs and transport limitations of H2O2 are serious disadvantages for its wider use. Thus, methods for its direct production from O2 and H2 are much sought after. In their Communication on page 988 ff., I. Yamanaka et al. report the safe and direct synthesis of neutral H2O2 solutions from O2 and H2 using a new active cathode comprised of a Co-tetraphenylporphyrin electrocatalyst on vapour-grown carbon fibre. A maximum concentration of 13.5 wt % (4.0 M) H2O2 was obtained at a current density of 90 mA cm−2 with a current efficiency of 42 % at 278 K.

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