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New approach towards preparation of efficient gas diffusion-type oxygen reduction electrode

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Abstract

A novel method by combining NAC-FAS (NAnometer-sized Crystal Formation in Alcoholic Solutions) method and mechanical milling treatment was successfully applied for dispersing perovskite type oxide LaMnO3 finely on carbon support. Microscopic observation revealed that nano-sized oxide particles were dispersed fairly well in the carbon support. The gas diffusion-type electrode prepared by means of reducing number and quantity of chemicals exhibited more excellent oxygen reduction activity than the electrodes containing LaMnO3 prepared by RHP (Reverse Homogeneous Precipitation) method. It allowed current density as high as 300 mA cm−2 at −80 mV (vs. Hg/HgO) in 8 M KOH at 60 °C under air flow.

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Authors and Affiliations

  1. Faculty of Chemistry, Nicholas Copernicus University, 87-100, Torun, Poland

    Jerzy P. Lukaszewicz

  2. Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga-shi, Fukuoka, 816-8580, Japan

    Shin Imaizumi & Masayoshi Yuasa

  3. Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, Kasuga-shi, Fukuoka, 816-8580, Japan

    Kengo Shimanoe & Noboru Yamazoe

Authors
  1. Jerzy P. Lukaszewicz
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  2. Shin Imaizumi
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  3. Masayoshi Yuasa
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  4. Kengo Shimanoe
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  5. Noboru Yamazoe
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Correspondence to Kengo Shimanoe.

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Lukaszewicz, J.P., Imaizumi, S., Yuasa, M. et al. New approach towards preparation of efficient gas diffusion-type oxygen reduction electrode. J Mater Sci 41, 6215–6220 (2006). https://doi.org/10.1007/s10853-006-0723-2

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  • DOI: https://doi.org/10.1007/s10853-006-0723-2

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