Electrochemical analysis of hydrogen membrane fuel cells

Naoki Ito; Satoshi Aoyama; Takatoshi Masui; Shinichi Matsumoto; Hiroshige Matsumoto; Tatsumi Ishihara

doi:10.1016/j.jpowsour.2008.08.004

Electrochemical analysis of hydrogen membrane fuel cells

Naoki Ito, Satoshi Aoyama, Takatoshi Masui, Shinichi Matsumoto, Hiroshige Matsumoto, Tatsumi Ishihara

Advanced Energy Conversion Systems Thrust

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

32 Citations (Scopus)

Abstract

An electrochemical analysis was conducted with respect to a hydrogen membrane fuel cell with SrZr_0.8In_0.2O_3-δ electrolyte, which is a new type of fuel cell featuring an ultra-thin proton conductor supported on a dense metal anode. Most of the voltage loss derives from the cathode and the electrolyte, and a small amount of anode polarization was observed only in regions with high current density. The cathode polarization was approximately an order of magnitude lower than that of SOFCs. Furthermore, the conductivity of the film electrolyte was almost identical to that of the sinter at 600 °C; however, it was several times as large at 400 °C. A TEM micrograph revealed that the film electrolyte consists mainly of long columnar crystals, and this crystal structure can be related to the conductivity enhancement below 600 °C.

Original language	English
Pages (from-to)	922-926
Number of pages	5
Journal	Journal of Power Sources
Volume	185
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2008.08.004
Publication status	Published - Dec 1 2008

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.2008.08.004

Cite this

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abstract = "An electrochemical analysis was conducted with respect to a hydrogen membrane fuel cell with SrZr0.8In0.2O3-δ electrolyte, which is a new type of fuel cell featuring an ultra-thin proton conductor supported on a dense metal anode. Most of the voltage loss derives from the cathode and the electrolyte, and a small amount of anode polarization was observed only in regions with high current density. The cathode polarization was approximately an order of magnitude lower than that of SOFCs. Furthermore, the conductivity of the film electrolyte was almost identical to that of the sinter at 600 °C; however, it was several times as large at 400 °C. A TEM micrograph revealed that the film electrolyte consists mainly of long columnar crystals, and this crystal structure can be related to the conductivity enhancement below 600 °C.",

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AU - Ito, Naoki

AU - Aoyama, Satoshi

AU - Masui, Takatoshi

AU - Matsumoto, Shinichi

AU - Matsumoto, Hiroshige

AU - Ishihara, Tatsumi

PY - 2008/12/1

Y1 - 2008/12/1

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AB - An electrochemical analysis was conducted with respect to a hydrogen membrane fuel cell with SrZr0.8In0.2O3-δ electrolyte, which is a new type of fuel cell featuring an ultra-thin proton conductor supported on a dense metal anode. Most of the voltage loss derives from the cathode and the electrolyte, and a small amount of anode polarization was observed only in regions with high current density. The cathode polarization was approximately an order of magnitude lower than that of SOFCs. Furthermore, the conductivity of the film electrolyte was almost identical to that of the sinter at 600 °C; however, it was several times as large at 400 °C. A TEM micrograph revealed that the film electrolyte consists mainly of long columnar crystals, and this crystal structure can be related to the conductivity enhancement below 600 °C.

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Electrochemical analysis of hydrogen membrane fuel cells

Abstract

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