Abstract
The in situ polymerization and crosslinking of sodium salt of sulfonated styrene in the pores of nafion 117 membrane has been studied for the evaluation of electrical performance of the resultant semi-IPN (semi-interpenetrating polymer network) membrane in direct methanol fuel cell (DMFC). The formation of semi-IPN is confirmed from the presence of aromatic characteristics peak in the FTIR spectra. Impedance results indicate that the semi-IPN sample with higher water uptake exhibits lower interfacial resistance compared to a sample with water uptake. This indicates that the semi-IPN formed in the pores of nafion 117 membrane has the ability to reduce methanol crossover by blocking the transportation. At higher temperatures (>110 °C) and lower current density (<25 mA cm-2), the electrical performance (power density) of a DMFC with a representative semi-IPN sample is observed to be higher than that with a nafion membrane.
| Original language | English |
|---|---|
| Pages (from-to) | 86-91 |
| Number of pages | 6 |
| Journal | Journal of Power Sources |
| Volume | 171 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2007 Sep 19 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
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Formation and evaluation of semi-IPN of nafion 117 membrane for direct methanol fuel cell. 1. Crosslinked sulfonated polystyrene in the pores of nafion 117. / Kundu, P. P.; Kim, Beom Taek; Ahn, Ji Eun; Han, Hak Soo; Shul, Yong Gun.
In: Journal of Power Sources, Vol. 171, No. 1, 19.09.2007, p. 86-91.Research output: Contribution to journal › Article
TY - JOUR
T1 - Formation and evaluation of semi-IPN of nafion 117 membrane for direct methanol fuel cell. 1. Crosslinked sulfonated polystyrene in the pores of nafion 117
AU - Kundu, P. P.
AU - Kim, Beom Taek
AU - Ahn, Ji Eun
AU - Han, Hak Soo
AU - Shul, Yong Gun
PY - 2007/9/19
Y1 - 2007/9/19
N2 - The in situ polymerization and crosslinking of sodium salt of sulfonated styrene in the pores of nafion 117 membrane has been studied for the evaluation of electrical performance of the resultant semi-IPN (semi-interpenetrating polymer network) membrane in direct methanol fuel cell (DMFC). The formation of semi-IPN is confirmed from the presence of aromatic characteristics peak in the FTIR spectra. Impedance results indicate that the semi-IPN sample with higher water uptake exhibits lower interfacial resistance compared to a sample with water uptake. This indicates that the semi-IPN formed in the pores of nafion 117 membrane has the ability to reduce methanol crossover by blocking the transportation. At higher temperatures (>110 °C) and lower current density (<25 mA cm-2), the electrical performance (power density) of a DMFC with a representative semi-IPN sample is observed to be higher than that with a nafion membrane.
AB - The in situ polymerization and crosslinking of sodium salt of sulfonated styrene in the pores of nafion 117 membrane has been studied for the evaluation of electrical performance of the resultant semi-IPN (semi-interpenetrating polymer network) membrane in direct methanol fuel cell (DMFC). The formation of semi-IPN is confirmed from the presence of aromatic characteristics peak in the FTIR spectra. Impedance results indicate that the semi-IPN sample with higher water uptake exhibits lower interfacial resistance compared to a sample with water uptake. This indicates that the semi-IPN formed in the pores of nafion 117 membrane has the ability to reduce methanol crossover by blocking the transportation. At higher temperatures (>110 °C) and lower current density (<25 mA cm-2), the electrical performance (power density) of a DMFC with a representative semi-IPN sample is observed to be higher than that with a nafion membrane.
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U2 - 10.1016/j.jpowsour.2006.10.099
DO - 10.1016/j.jpowsour.2006.10.099
M3 - Article
AN - SCOPUS:34548256755
VL - 171
SP - 86
EP - 91
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 1
ER -