Influence and mitigation methods of reaction intermediates on cell performance in direct methanol fuel cell system

Jun Young Park; Ka Young Park; Ki Buem Kim; Youngseung Na; Hyejung Cho; Joon Hee Kim

doi:10.1016/j.jpowsour.2011.01.108

Influence and mitigation methods of reaction intermediates on cell performance in direct methanol fuel cell system

Jun Young Park, Ka Young Park, Ki Buem Kim, Youngseung Na, Hyejung Cho, Joon Hee Kim

Department of Mechanical and Information Engineering

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

14 Scopus citations

Abstract

In direct methanol fuel cells (DMFCs), a dilute methanol and water mixture is generally used and recycled as a fuel to improve the performance and operation time with high fuel efficiency through reduced methanol crossover. Such recycling can, however, allow the continuous accumulation of some reaction intermediates in the circulating loop of dilute methanol during DMFC operation. Therefore, this study examines DMFC contamination sources and the electrochemical influence of recycled methanol fuel by physicochemical analysis of the organic and inorganic (metal) intermediates generated from the DMFC system components. Further, a novel method for mitigating the impact of the reaction intermediates on the performance of DMFC system is proposed.

Original language	English
Pages (from-to)	5446-5452
Number of pages	7
Journal	Journal of Power Sources
Volume	196
Issue number	13
DOIs	https://doi.org/10.1016/j.jpowsour.2011.01.108
State	Published - 1 Jul 2011

Keywords

Direct methanol fuel cell
Gas chromatography-mass spectrometry
Inductively coupled plasma-atomic emission spectroscopy
Ion exchange resin
Reaction intermediates

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10.1016/j.jpowsour.2011.01.108

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title = "Influence and mitigation methods of reaction intermediates on cell performance in direct methanol fuel cell system",

abstract = "In direct methanol fuel cells (DMFCs), a dilute methanol and water mixture is generally used and recycled as a fuel to improve the performance and operation time with high fuel efficiency through reduced methanol crossover. Such recycling can, however, allow the continuous accumulation of some reaction intermediates in the circulating loop of dilute methanol during DMFC operation. Therefore, this study examines DMFC contamination sources and the electrochemical influence of recycled methanol fuel by physicochemical analysis of the organic and inorganic (metal) intermediates generated from the DMFC system components. Further, a novel method for mitigating the impact of the reaction intermediates on the performance of DMFC system is proposed.",

keywords = "Direct methanol fuel cell, Gas chromatography-mass spectrometry, Inductively coupled plasma-atomic emission spectroscopy, Ion exchange resin, Reaction intermediates",

author = "Park, {Jun Young} and Park, {Ka Young} and Kim, {Ki Buem} and Youngseung Na and Hyejung Cho and Kim, {Joon Hee}",

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T1 - Influence and mitigation methods of reaction intermediates on cell performance in direct methanol fuel cell system

AU - Park, Jun Young

AU - Park, Ka Young

AU - Kim, Ki Buem

AU - Na, Youngseung

AU - Cho, Hyejung

AU - Kim, Joon Hee

PY - 2011/7/1

Y1 - 2011/7/1

N2 - In direct methanol fuel cells (DMFCs), a dilute methanol and water mixture is generally used and recycled as a fuel to improve the performance and operation time with high fuel efficiency through reduced methanol crossover. Such recycling can, however, allow the continuous accumulation of some reaction intermediates in the circulating loop of dilute methanol during DMFC operation. Therefore, this study examines DMFC contamination sources and the electrochemical influence of recycled methanol fuel by physicochemical analysis of the organic and inorganic (metal) intermediates generated from the DMFC system components. Further, a novel method for mitigating the impact of the reaction intermediates on the performance of DMFC system is proposed.

AB - In direct methanol fuel cells (DMFCs), a dilute methanol and water mixture is generally used and recycled as a fuel to improve the performance and operation time with high fuel efficiency through reduced methanol crossover. Such recycling can, however, allow the continuous accumulation of some reaction intermediates in the circulating loop of dilute methanol during DMFC operation. Therefore, this study examines DMFC contamination sources and the electrochemical influence of recycled methanol fuel by physicochemical analysis of the organic and inorganic (metal) intermediates generated from the DMFC system components. Further, a novel method for mitigating the impact of the reaction intermediates on the performance of DMFC system is proposed.

KW - Direct methanol fuel cell

KW - Gas chromatography-mass spectrometry

KW - Inductively coupled plasma-atomic emission spectroscopy

KW - Ion exchange resin

KW - Reaction intermediates

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DO - 10.1016/j.jpowsour.2011.01.108

M3 - Article

AN - SCOPUS:79955482840

SN - 0378-7753

VL - 196

SP - 5446

EP - 5452

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 13

ER -

Influence and mitigation methods of reaction intermediates on cell performance in direct methanol fuel cell system

Abstract

Keywords

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