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

Masayoshi Yuasa; Kengo Shimanoe; Yasutake Teraoka; Noboru Yamazoe

doi:10.1149/1.3561762

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

Masayoshi Yuasa, Kengo Shimanoe, Yasutake Teraoka, Noboru Yamazoe

Functional Materials Science

Research output: Contribution to journal › Article

23 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 La_0.4Ca_0.6Mn_0.9Fe _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 La_0.4Ca_0.6Mn_0.9Fe _0.1O₃ is a promising candidate as an alternative oxygen reduction catalyst of Pt nanoparticles.

Original language	English
Pages (from-to)	A67-A69
Journal	Electrochemical and Solid-State Letters
Volume	14
Issue number	5
DOIs	https://doi.org/10.1149/1.3561762
Publication status	Published - 2011

All Science Journal Classification (ASJC) codes

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

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Yuasa, M., Shimanoe, K., Teraoka, Y., & Yamazoe, N. (2011). High-performance oxygen reduction catalyst using carbon-supported La-Mn-based perovskite-type oxide. Electrochemical and Solid-State Letters, 14(5), A67-A69. https://doi.org/10.1149/1.3561762

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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.",

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