Gas diffusion electrodes for polymer electrolyte fuel cells using novel organic/inorganic hybrid electrolytes: Effect of carbon black addition in the catalyst layer

Osamu Nishikawa; Kazuo Doyama; Kenji Miyatake; Hiroyuki Uchida; Masahiro Watanabe

doi:10.1016/j.electacta.2004.11.018

Gas diffusion electrodes for polymer electrolyte fuel cells using novel organic/inorganic hybrid electrolytes: Effect of carbon black addition in the catalyst layer

Osamu Nishikawa, Kazuo Doyama, Kenji Miyatake, Hiroyuki Uchida, Masahiro Watanabe^*

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

We have prepared novel gas diffusion electrodes for polymer electrolyte fuel cells (PEFC) using new organic/inorganic hybrid electrolytes. The catalyst layers were prepared by mixing 3-(trihydroxysilyl)-1-propanesulfonic acid [(THS)Pro-SO₃H], 1,8-bis(triethoxysilyl) octane (TES-Oct), Pt loaded carbon black (Pt-CB) and water, followed by a sol-gel reaction. It was found that addition of uncatalyzed carbon black (u-CB) into the cathode catalyst layer enhanced the performance at high current density region, due to an increase in the gas diffusion rate. The optimum volume ratio of u-CB/Pt-CB was found to be 0.1, at which the gas diffusivity and the catalyst utilization are well balanced.

Original language	English
Pages (from-to)	2719-2723
Number of pages	5
Journal	Electrochimica Acta
Volume	50
Issue number	13
DOIs	https://doi.org/10.1016/j.electacta.2004.11.018
Publication status	Published - 2005 Apr 30
Externally published	Yes

Keywords

Carbon black
Fuel cell
Gas diffusion electrodes
Organic/inorganic hybrid materials
PEFC

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

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10.1016/j.electacta.2004.11.018

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title = "Gas diffusion electrodes for polymer electrolyte fuel cells using novel organic/inorganic hybrid electrolytes: Effect of carbon black addition in the catalyst layer",

abstract = "We have prepared novel gas diffusion electrodes for polymer electrolyte fuel cells (PEFC) using new organic/inorganic hybrid electrolytes. The catalyst layers were prepared by mixing 3-(trihydroxysilyl)-1-propanesulfonic acid [(THS)Pro-SO3H], 1,8-bis(triethoxysilyl) octane (TES-Oct), Pt loaded carbon black (Pt-CB) and water, followed by a sol-gel reaction. It was found that addition of uncatalyzed carbon black (u-CB) into the cathode catalyst layer enhanced the performance at high current density region, due to an increase in the gas diffusion rate. The optimum volume ratio of u-CB/Pt-CB was found to be 0.1, at which the gas diffusivity and the catalyst utilization are well balanced.",

keywords = "Carbon black, Fuel cell, Gas diffusion electrodes, Organic/inorganic hybrid materials, PEFC",

author = "Osamu Nishikawa and Kazuo Doyama and Kenji Miyatake and Hiroyuki Uchida and Masahiro Watanabe",

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doi = "10.1016/j.electacta.2004.11.018",

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T2 - Effect of carbon black addition in the catalyst layer

AU - Nishikawa, Osamu

AU - Doyama, Kazuo

AU - Miyatake, Kenji

AU - Uchida, Hiroyuki

AU - Watanabe, Masahiro

PY - 2005/4/30

Y1 - 2005/4/30

N2 - We have prepared novel gas diffusion electrodes for polymer electrolyte fuel cells (PEFC) using new organic/inorganic hybrid electrolytes. The catalyst layers were prepared by mixing 3-(trihydroxysilyl)-1-propanesulfonic acid [(THS)Pro-SO3H], 1,8-bis(triethoxysilyl) octane (TES-Oct), Pt loaded carbon black (Pt-CB) and water, followed by a sol-gel reaction. It was found that addition of uncatalyzed carbon black (u-CB) into the cathode catalyst layer enhanced the performance at high current density region, due to an increase in the gas diffusion rate. The optimum volume ratio of u-CB/Pt-CB was found to be 0.1, at which the gas diffusivity and the catalyst utilization are well balanced.

AB - We have prepared novel gas diffusion electrodes for polymer electrolyte fuel cells (PEFC) using new organic/inorganic hybrid electrolytes. The catalyst layers were prepared by mixing 3-(trihydroxysilyl)-1-propanesulfonic acid [(THS)Pro-SO3H], 1,8-bis(triethoxysilyl) octane (TES-Oct), Pt loaded carbon black (Pt-CB) and water, followed by a sol-gel reaction. It was found that addition of uncatalyzed carbon black (u-CB) into the cathode catalyst layer enhanced the performance at high current density region, due to an increase in the gas diffusion rate. The optimum volume ratio of u-CB/Pt-CB was found to be 0.1, at which the gas diffusivity and the catalyst utilization are well balanced.

KW - Carbon black

KW - Fuel cell

KW - Gas diffusion electrodes

KW - Organic/inorganic hybrid materials

KW - PEFC

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Gas diffusion electrodes for polymer electrolyte fuel cells using novel organic/inorganic hybrid electrolytes: Effect of carbon black addition in the catalyst layer

Abstract

Keywords

ASJC Scopus subject areas

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