Characteristic studies of a PBI/H3PO4 high temperature membrane PEMFC under simulated reformate gases

Chen Yu Chen, Wei Hsiang Lai, Yi Kuang Chen, Siou Sheng Su

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A high temperature proton exchange membrane fuel cell is considered a solution to improve the cell performance under CO-contained hydrogen and to simplify the gas purification process of a reformate fuel cell system. In this study, polybenzimidazole-based phosphoric acid-doped fuel cells are studied under simulated reformate gases of different H2, N2 and CO concentrations. The experimental results show that the dilution effect of N2 has a minor impact on the cell performance in absence of CO. However, the CO poisoning increases the charge transfer resistance and leads to a substantial performance drop. This work also reveals that increasing the operating temperature can effectively improve the CO tolerance by suppressing the Pt-CO binding reaction. In addition, the CO poisoning effect becomes more significant in diluted H2. As a result, the CO concentration should be maintained lower than a critical level to prevent a high CO coverage on the catalyst which leads to a noteworthy voltage shut-down, especially in highly diluted H2.

Original languageEnglish
Pages (from-to)13757-13762
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number25
DOIs
Publication statusPublished - 2014 Aug 22

Fingerprint

Proton exchange membrane fuel cells (PEMFC)
fuel cells
Fuel cells
poisoning
Gas fuel purification
membranes
Membranes
Phosphoric acid
Gases
gases
polybenzimidazole
Dilution
Charge transfer
phosphoric acid
cells
operating temperature
purification
Hydrogen
Temperature
Catalysts

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

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title = "Characteristic studies of a PBI/H3PO4 high temperature membrane PEMFC under simulated reformate gases",
abstract = "A high temperature proton exchange membrane fuel cell is considered a solution to improve the cell performance under CO-contained hydrogen and to simplify the gas purification process of a reformate fuel cell system. In this study, polybenzimidazole-based phosphoric acid-doped fuel cells are studied under simulated reformate gases of different H2, N2 and CO concentrations. The experimental results show that the dilution effect of N2 has a minor impact on the cell performance in absence of CO. However, the CO poisoning increases the charge transfer resistance and leads to a substantial performance drop. This work also reveals that increasing the operating temperature can effectively improve the CO tolerance by suppressing the Pt-CO binding reaction. In addition, the CO poisoning effect becomes more significant in diluted H2. As a result, the CO concentration should be maintained lower than a critical level to prevent a high CO coverage on the catalyst which leads to a noteworthy voltage shut-down, especially in highly diluted H2.",
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Characteristic studies of a PBI/H3PO4 high temperature membrane PEMFC under simulated reformate gases. / Chen, Chen Yu; Lai, Wei Hsiang; Chen, Yi Kuang; Su, Siou Sheng.

In: International Journal of Hydrogen Energy, Vol. 39, No. 25, 22.08.2014, p. 13757-13762.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Characteristic studies of a PBI/H3PO4 high temperature membrane PEMFC under simulated reformate gases

AU - Chen, Chen Yu

AU - Lai, Wei Hsiang

AU - Chen, Yi Kuang

AU - Su, Siou Sheng

PY - 2014/8/22

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AB - A high temperature proton exchange membrane fuel cell is considered a solution to improve the cell performance under CO-contained hydrogen and to simplify the gas purification process of a reformate fuel cell system. In this study, polybenzimidazole-based phosphoric acid-doped fuel cells are studied under simulated reformate gases of different H2, N2 and CO concentrations. The experimental results show that the dilution effect of N2 has a minor impact on the cell performance in absence of CO. However, the CO poisoning increases the charge transfer resistance and leads to a substantial performance drop. This work also reveals that increasing the operating temperature can effectively improve the CO tolerance by suppressing the Pt-CO binding reaction. In addition, the CO poisoning effect becomes more significant in diluted H2. As a result, the CO concentration should be maintained lower than a critical level to prevent a high CO coverage on the catalyst which leads to a noteworthy voltage shut-down, especially in highly diluted H2.

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