Abstract
The newly developed polyphosphazene (POP)-based proton conducting membranes to be used on polymer electrolyte membrane fuel cells (DMFC) was studied. Sulfonated and phosphonated POP had significant increases in conductivity with increasing temperature, although these values remained lower than that of Nafion 117. The results for the methanol permeability measurements of sulfonated and phosphonated POP at ambient temperatures showed significantly lower capacity for methanol cross-over when compared to Nafion 117, leading to promising candidates for further DMFC testing. Sulfonated POP was superior (in terms of selectivity) to Nafion 117 at below 85°C, while the phosphonated POP was superior to Nafion 117 at 22°-125°C. The maximum power density for the sulfonimide POP-based fuel cell was comparable to the Nafion-based MEA, as well as to the results of Wilson and Gottesfeld for Nafion 117 based fuel cells.
| Original language | English (US) |
|---|---|
| Title of host publication | ACS Division of Fuel Chemistry, Preprints |
| Pages | 480-481 |
| Number of pages | 2 |
| Volume | 48 |
| Edition | 1 |
| State | Published - Mar 2003 |
| Externally published | Yes |
| Event | Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference - San Antonio, TX, United States Duration: Mar 10 2003 → Mar 12 2003 |
Other
| Other | Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference |
|---|---|
| Country | United States |
| City | San Antonio, TX |
| Period | 3/10/03 → 3/12/03 |
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ASJC Scopus subject areas
- Energy(all)
Cite this
Polyphosphazene-based polymer electrolyte membrane fuel cells. / Lvov, Serguei N.; Zhou, Xiangyang; Chalkova, Elena; Weston, Jamie A.; Ambler, Catherine M.; Maher, Andrew E.; Wood, Richard M.; Allcock, Harry R.
ACS Division of Fuel Chemistry, Preprints. Vol. 48 1. ed. 2003. p. 480-481.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Polyphosphazene-based polymer electrolyte membrane fuel cells
AU - Lvov, Serguei N.
AU - Zhou, Xiangyang
AU - Chalkova, Elena
AU - Weston, Jamie A.
AU - Ambler, Catherine M.
AU - Maher, Andrew E.
AU - Wood, Richard M.
AU - Allcock, Harry R.
PY - 2003/3
Y1 - 2003/3
N2 - The newly developed polyphosphazene (POP)-based proton conducting membranes to be used on polymer electrolyte membrane fuel cells (DMFC) was studied. Sulfonated and phosphonated POP had significant increases in conductivity with increasing temperature, although these values remained lower than that of Nafion 117. The results for the methanol permeability measurements of sulfonated and phosphonated POP at ambient temperatures showed significantly lower capacity for methanol cross-over when compared to Nafion 117, leading to promising candidates for further DMFC testing. Sulfonated POP was superior (in terms of selectivity) to Nafion 117 at below 85°C, while the phosphonated POP was superior to Nafion 117 at 22°-125°C. The maximum power density for the sulfonimide POP-based fuel cell was comparable to the Nafion-based MEA, as well as to the results of Wilson and Gottesfeld for Nafion 117 based fuel cells.
AB - The newly developed polyphosphazene (POP)-based proton conducting membranes to be used on polymer electrolyte membrane fuel cells (DMFC) was studied. Sulfonated and phosphonated POP had significant increases in conductivity with increasing temperature, although these values remained lower than that of Nafion 117. The results for the methanol permeability measurements of sulfonated and phosphonated POP at ambient temperatures showed significantly lower capacity for methanol cross-over when compared to Nafion 117, leading to promising candidates for further DMFC testing. Sulfonated POP was superior (in terms of selectivity) to Nafion 117 at below 85°C, while the phosphonated POP was superior to Nafion 117 at 22°-125°C. The maximum power density for the sulfonimide POP-based fuel cell was comparable to the Nafion-based MEA, as well as to the results of Wilson and Gottesfeld for Nafion 117 based fuel cells.
UR - http://www.scopus.com/inward/record.url?scp=0344553369&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0344553369&partnerID=8YFLogxK
M3 - Conference contribution
VL - 48
SP - 480
EP - 481
BT - ACS Division of Fuel Chemistry, Preprints
ER -