Synergy effects of Pr1.91Ni0.71Cu 0.24Ga0.05O4 and Ba0.5La 0.5CoO3 composite on cathodic activity for intermediate temperature solid oxide fuel cells

Jing Xie; Young Wan Ju; Maki Matsuka; Shitaro Ida; Tatsumi Ishihara

doi:10.1016/j.jpowsour.2012.11.089

Synergy effects of Pr_1.91Ni_0.71Cu _0.24Ga_0.05O₄ and Ba_0.5La _0.5CoO₃ composite on cathodic activity for intermediate temperature solid oxide fuel cells

Jing Xie, Young Wan Ju, Maki Matsuka, Shitaro Ida, Tatsumi Ishihara

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Synergy effects of mixing Pr₂NiO₄ and La(Ba)CoO ₃ on cathodic performance were investigated using a LaGaO ₃-based oxide electrolyte. It was observed that cathodic overpotential could be suppressed significantly by mixing Pr₂NiO ₄ with La(Ba)CoO₃ base oxide, in spite of a decrease in the electrical conductivity. Because LaCoO₃-doped with Ba shows high oxygen dissociation activity and Pr₂NiO₄ shows high oxide ion and hole conductivity, the active sites for oxygen dissociation could be extended in three dimensions. In response to the improved number of active sites, diffusion overpotential was decreased significantly by mixing Pr ₂NiO₄-based oxide with LaCoO₃-based oxide. The maximum power density of 117 mW cm^-2 was achieved at temperatures as low as 673 K using a LaGaO₃ thin film electrolyte (5-μm thick) and a composite oxide of Pr₂NiO₄-La(Ba)CoO₃ cathode.

Original language	English
Pages (from-to)	229-236
Number of pages	8
Journal	Journal of Power Sources
Volume	228
DOIs	https://doi.org/10.1016/j.jpowsour.2012.11.089
Publication status	Published - 2013

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2012.11.089

Cite this

@article{2a3041f2dfd849be9a2d199fcacf8880,

title = "Synergy effects of Pr1.91Ni0.71Cu 0.24Ga0.05O4 and Ba0.5La 0.5CoO3 composite on cathodic activity for intermediate temperature solid oxide fuel cells",

abstract = "Synergy effects of mixing Pr2NiO4 and La(Ba)CoO 3 on cathodic performance were investigated using a LaGaO 3-based oxide electrolyte. It was observed that cathodic overpotential could be suppressed significantly by mixing Pr2NiO 4 with La(Ba)CoO3 base oxide, in spite of a decrease in the electrical conductivity. Because LaCoO3-doped with Ba shows high oxygen dissociation activity and Pr2NiO4 shows high oxide ion and hole conductivity, the active sites for oxygen dissociation could be extended in three dimensions. In response to the improved number of active sites, diffusion overpotential was decreased significantly by mixing Pr 2NiO4-based oxide with LaCoO3-based oxide. The maximum power density of 117 mW cm-2 was achieved at temperatures as low as 673 K using a LaGaO3 thin film electrolyte (5-μm thick) and a composite oxide of Pr2NiO4-La(Ba)CoO3 cathode.",

author = "Jing Xie and Ju, {Young Wan} and Maki Matsuka and Shitaro Ida and Tatsumi Ishihara",

year = "2013",

doi = "10.1016/j.jpowsour.2012.11.089",

language = "English",

volume = "228",

pages = "229--236",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier",

}

TY - JOUR

T1 - Synergy effects of Pr1.91Ni0.71Cu 0.24Ga0.05O4 and Ba0.5La 0.5CoO3 composite on cathodic activity for intermediate temperature solid oxide fuel cells

AU - Xie, Jing

AU - Ju, Young Wan

AU - Matsuka, Maki

AU - Ida, Shitaro

AU - Ishihara, Tatsumi

PY - 2013

Y1 - 2013

N2 - Synergy effects of mixing Pr2NiO4 and La(Ba)CoO 3 on cathodic performance were investigated using a LaGaO 3-based oxide electrolyte. It was observed that cathodic overpotential could be suppressed significantly by mixing Pr2NiO 4 with La(Ba)CoO3 base oxide, in spite of a decrease in the electrical conductivity. Because LaCoO3-doped with Ba shows high oxygen dissociation activity and Pr2NiO4 shows high oxide ion and hole conductivity, the active sites for oxygen dissociation could be extended in three dimensions. In response to the improved number of active sites, diffusion overpotential was decreased significantly by mixing Pr 2NiO4-based oxide with LaCoO3-based oxide. The maximum power density of 117 mW cm-2 was achieved at temperatures as low as 673 K using a LaGaO3 thin film electrolyte (5-μm thick) and a composite oxide of Pr2NiO4-La(Ba)CoO3 cathode.

AB - Synergy effects of mixing Pr2NiO4 and La(Ba)CoO 3 on cathodic performance were investigated using a LaGaO 3-based oxide electrolyte. It was observed that cathodic overpotential could be suppressed significantly by mixing Pr2NiO 4 with La(Ba)CoO3 base oxide, in spite of a decrease in the electrical conductivity. Because LaCoO3-doped with Ba shows high oxygen dissociation activity and Pr2NiO4 shows high oxide ion and hole conductivity, the active sites for oxygen dissociation could be extended in three dimensions. In response to the improved number of active sites, diffusion overpotential was decreased significantly by mixing Pr 2NiO4-based oxide with LaCoO3-based oxide. The maximum power density of 117 mW cm-2 was achieved at temperatures as low as 673 K using a LaGaO3 thin film electrolyte (5-μm thick) and a composite oxide of Pr2NiO4-La(Ba)CoO3 cathode.

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JO - Journal of Power Sources

JF - Journal of Power Sources

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