Performance of the polymer electrolyte membranes impregnated with some room-temperature ionic liquids at elevated temperature

Arata Goto, Yusuke Kawagoe, Yasushi Katayama, Takashi Miura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The Nafion membrane impregnated with various room-temperature ionic liquids have been prepared and characterized as the electrolytes for polymer electrolyte fuel cells (PEFCs) operated at elevated temperature (100 200°C). The continuous proton transportation in the membrane was confirmed under dry hydrogen atmosphere at 160t. The ionic conductivity of the membrane was determined by both DC and AC measurements under dry hydrogen atmosphere and found to reach the order of 10-2 S cm-1 at 2001 without humidification. It is suggested that the high ionic conductivity of the membrane is caused mainly by free ionic liquids in the membranes. The continuous operation of the PEFC using the membrane was found to be possible without humidification at 120°C. However, the overpotential at the cathode was found to be large compared with the anode probably due to the sluggish electrode reaction and/or the slow diffusion of HTFSI in the membranes.

Original languageEnglish
Pages (from-to)231-237
Number of pages7
JournalElectrochemistry
Volume75
Issue number2
Publication statusPublished - 2007 Feb

Fingerprint

Ionic Liquids
Ionic liquids
Electrolytes
Polymers
Membranes
Temperature
Ionic conductivity
Fuel cells
Hydrogen
Protons
Anodes
Cathodes
Electrodes

Keywords

  • Ionic liquid
  • PEFCs
  • Polymer electrolyte

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Performance of the polymer electrolyte membranes impregnated with some room-temperature ionic liquids at elevated temperature. / Goto, Arata; Kawagoe, Yusuke; Katayama, Yasushi; Miura, Takashi.

In: Electrochemistry, Vol. 75, No. 2, 02.2007, p. 231-237.

Research output: Contribution to journalArticle

@article{def3b1b343fa4a00b106c77baaba3491,
title = "Performance of the polymer electrolyte membranes impregnated with some room-temperature ionic liquids at elevated temperature",
abstract = "The Nafion membrane impregnated with various room-temperature ionic liquids have been prepared and characterized as the electrolytes for polymer electrolyte fuel cells (PEFCs) operated at elevated temperature (100 200°C). The continuous proton transportation in the membrane was confirmed under dry hydrogen atmosphere at 160t. The ionic conductivity of the membrane was determined by both DC and AC measurements under dry hydrogen atmosphere and found to reach the order of 10-2 S cm-1 at 2001 without humidification. It is suggested that the high ionic conductivity of the membrane is caused mainly by free ionic liquids in the membranes. The continuous operation of the PEFC using the membrane was found to be possible without humidification at 120°C. However, the overpotential at the cathode was found to be large compared with the anode probably due to the sluggish electrode reaction and/or the slow diffusion of HTFSI in the membranes.",
keywords = "Ionic liquid, PEFCs, Polymer electrolyte",
author = "Arata Goto and Yusuke Kawagoe and Yasushi Katayama and Takashi Miura",
year = "2007",
month = "2",
language = "English",
volume = "75",
pages = "231--237",
journal = "Electrochemistry",
issn = "1344-3542",
publisher = "Electrochemical Society of Japan",
number = "2",

}

TY - JOUR

T1 - Performance of the polymer electrolyte membranes impregnated with some room-temperature ionic liquids at elevated temperature

AU - Goto, Arata

AU - Kawagoe, Yusuke

AU - Katayama, Yasushi

AU - Miura, Takashi

PY - 2007/2

Y1 - 2007/2

N2 - The Nafion membrane impregnated with various room-temperature ionic liquids have been prepared and characterized as the electrolytes for polymer electrolyte fuel cells (PEFCs) operated at elevated temperature (100 200°C). The continuous proton transportation in the membrane was confirmed under dry hydrogen atmosphere at 160t. The ionic conductivity of the membrane was determined by both DC and AC measurements under dry hydrogen atmosphere and found to reach the order of 10-2 S cm-1 at 2001 without humidification. It is suggested that the high ionic conductivity of the membrane is caused mainly by free ionic liquids in the membranes. The continuous operation of the PEFC using the membrane was found to be possible without humidification at 120°C. However, the overpotential at the cathode was found to be large compared with the anode probably due to the sluggish electrode reaction and/or the slow diffusion of HTFSI in the membranes.

AB - The Nafion membrane impregnated with various room-temperature ionic liquids have been prepared and characterized as the electrolytes for polymer electrolyte fuel cells (PEFCs) operated at elevated temperature (100 200°C). The continuous proton transportation in the membrane was confirmed under dry hydrogen atmosphere at 160t. The ionic conductivity of the membrane was determined by both DC and AC measurements under dry hydrogen atmosphere and found to reach the order of 10-2 S cm-1 at 2001 without humidification. It is suggested that the high ionic conductivity of the membrane is caused mainly by free ionic liquids in the membranes. The continuous operation of the PEFC using the membrane was found to be possible without humidification at 120°C. However, the overpotential at the cathode was found to be large compared with the anode probably due to the sluggish electrode reaction and/or the slow diffusion of HTFSI in the membranes.

KW - Ionic liquid

KW - PEFCs

KW - Polymer electrolyte

UR - http://www.scopus.com/inward/record.url?scp=34047094797&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34047094797&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:34047094797

VL - 75

SP - 231

EP - 237

JO - Electrochemistry

JF - Electrochemistry

SN - 1344-3542

IS - 2

ER -