High-performance oxygen reduction catalyst using carbon-supported La-Mn-based perovskite-type oxide

Masayoshi Yuasa, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

To obtain a highly active and low-cost oxygen reduction electrode, as compared with a Pt-loaded carbon electrode, a nano-sized La-Mn-based perovskite-type oxide on a carbon support was prepared through the reverse-micelle method. An gas diffusion oxygen reduction electrode using nano-sized La0.4Ca0.6Mn0.9Fe 0.1O3 as a electrocatalyst allowed a electrode potential as high as -50 mV (vs HgHgO) in 9 moll NaOH at 500 mA cm-2. This electrode potential is much higher than the electrode potential of carbon-supported Pt nanoparticles at the same current density. This result suggests that nano-sized La0.4Ca0.6Mn0.9Fe 0.1O3 is a promising candidate as an alternative oxygen reduction catalyst of Pt nanoparticles.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume14
Issue number5
DOIs
Publication statusPublished - Mar 16 2011

Fingerprint

Perovskite
Oxides
Carbon
Oxygen
catalysts
Electrodes
Catalysts
electrodes
oxides
carbon
oxygen
Nanoparticles
nanoparticles
gaseous diffusion
Diffusion in gases
electrocatalysts
Electrocatalysts
Micelles
perovskite
micelles

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

High-performance oxygen reduction catalyst using carbon-supported La-Mn-based perovskite-type oxide. / Yuasa, Masayoshi; Shimanoe, Kengo; Teraoka, Yasutake; Yamazoe, Noboru.

In: Electrochemical and Solid-State Letters, Vol. 14, No. 5, 16.03.2011.

Research output: Contribution to journalArticle

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