Abstract
Understanding the reaction distributions inside a polymer electrolyte fuel cell (PEFC) is essential for the higher performance and durability. We have developed a new see-through cell and visualized the distributions of oxygen partial pressure and current density inside a running PEFC at the temperature of 40 and 80 °C and the relative humidity of 53%. The oxygen utilization was changed from 0% to 80% by changing the current density. At higher oxygen utilizations, the current density was higher and therefore the water generation. Generated water droplets in the flow channel were also visualized, allowing for the simultaneous visualization of the distribution of the oxygen partial pressure, current density, and water droplets. By combining the observations of all three parameters, the reactions inside a membrane-electrode assembly were discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 135-141 |
| Number of pages | 7 |
| Journal | Journal of Power Sources |
| Volume | 343 |
| DOIs | |
| Publication status | Published - 2017 Mar 1 |
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Keywords
- Current density
- Liquid water droplet
- Oxygen partial pressure
- Polymer electrolyte fuel cell
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
Cite this
Simultaneous visualization of oxygen partial pressure, current density, and water droplets in serpentine fuel cell during power generation for understanding reaction distributions. / Takanohashi, Kazuhiro; Suga, Takeo; Uchida, Makoto; Ueda, Toshihide; Nagumo, Yuzo; Inukai, Junji; Nishide, Hiroyuki; Watanabe, Masahiro.
In: Journal of Power Sources, Vol. 343, 01.03.2017, p. 135-141.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simultaneous visualization of oxygen partial pressure, current density, and water droplets in serpentine fuel cell during power generation for understanding reaction distributions
AU - Takanohashi, Kazuhiro
AU - Suga, Takeo
AU - Uchida, Makoto
AU - Ueda, Toshihide
AU - Nagumo, Yuzo
AU - Inukai, Junji
AU - Nishide, Hiroyuki
AU - Watanabe, Masahiro
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Understanding the reaction distributions inside a polymer electrolyte fuel cell (PEFC) is essential for the higher performance and durability. We have developed a new see-through cell and visualized the distributions of oxygen partial pressure and current density inside a running PEFC at the temperature of 40 and 80 °C and the relative humidity of 53%. The oxygen utilization was changed from 0% to 80% by changing the current density. At higher oxygen utilizations, the current density was higher and therefore the water generation. Generated water droplets in the flow channel were also visualized, allowing for the simultaneous visualization of the distribution of the oxygen partial pressure, current density, and water droplets. By combining the observations of all three parameters, the reactions inside a membrane-electrode assembly were discussed.
AB - Understanding the reaction distributions inside a polymer electrolyte fuel cell (PEFC) is essential for the higher performance and durability. We have developed a new see-through cell and visualized the distributions of oxygen partial pressure and current density inside a running PEFC at the temperature of 40 and 80 °C and the relative humidity of 53%. The oxygen utilization was changed from 0% to 80% by changing the current density. At higher oxygen utilizations, the current density was higher and therefore the water generation. Generated water droplets in the flow channel were also visualized, allowing for the simultaneous visualization of the distribution of the oxygen partial pressure, current density, and water droplets. By combining the observations of all three parameters, the reactions inside a membrane-electrode assembly were discussed.
KW - Current density
KW - Liquid water droplet
KW - Oxygen partial pressure
KW - Polymer electrolyte fuel cell
UR - http://www.scopus.com/inward/record.url?scp=85009724182&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85009724182&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2017.01.047
DO - 10.1016/j.jpowsour.2017.01.047
M3 - Article
VL - 343
SP - 135
EP - 141
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
ER -