Abstract
| Original language | English |
|---|---|
| Journal | Fuel Cells |
| Volume | 18 |
| Issue number | 6 |
| Pages (from-to) | 688-697 |
| ISSN | 1615-6846 |
| DOIs | |
| Publication status | Published - 2018 |
Keywords
- Cross-linking
- Durability
- Fuel Cells
- Membranes
- Polybenzimidazole
- Proton Conductor
Cite this
}
Fuel Cell Electrolytes of Polybenzimidazole Membranes Cross-linked with Bis(chloromethyl) Arenes. / Kirkebæk, A.; Aili, D.; Yue, B.; Vassiliev, A.; Cleemann, L. N.; Jensen, J. O.; Li, Q.
In: Fuel Cells, Vol. 18, No. 6, 2018, p. 688-697.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Fuel Cell Electrolytes of Polybenzimidazole Membranes Cross-linked with Bis(chloromethyl) Arenes
AU - Kirkebæk, A.
AU - Aili, D.
AU - Yue, B.
AU - Vassiliev, A.
AU - Cleemann, L. N.
AU - Jensen, J. O.
AU - Li, Q.
PY - 2018
Y1 - 2018
N2 - Cross‐linking of phosphoric acid doped polybenzimidazole membranes as fuel cell electrolytes represents an attractive approach to improving the mechanical robustness at a high acid loading. Numerous cross‐linking concepts have been reported in the literature, but a deeper understanding of how the cross‐linking chemistry affects the physicochemical properties of the membrane and its fuel cell performance and durability remains to be assessed. In this work, a series of cross‐linked membranes are prepared using cross‐linking agents of different regio‐chemistry and steric nature. It is shown, that the nature of the cross‐linking agent has a large impact on the effective degree of cross‐linking, which in turn determines the acid doping characteristics and ultimately the fuel cell performance and acid retention during long‐term operation.
AB - Cross‐linking of phosphoric acid doped polybenzimidazole membranes as fuel cell electrolytes represents an attractive approach to improving the mechanical robustness at a high acid loading. Numerous cross‐linking concepts have been reported in the literature, but a deeper understanding of how the cross‐linking chemistry affects the physicochemical properties of the membrane and its fuel cell performance and durability remains to be assessed. In this work, a series of cross‐linked membranes are prepared using cross‐linking agents of different regio‐chemistry and steric nature. It is shown, that the nature of the cross‐linking agent has a large impact on the effective degree of cross‐linking, which in turn determines the acid doping characteristics and ultimately the fuel cell performance and acid retention during long‐term operation.
KW - Cross-linking
KW - Durability
KW - Fuel Cells
KW - Membranes
KW - Polybenzimidazole
KW - Proton Conductor
U2 - 10.1002/fuce.201800090
DO - 10.1002/fuce.201800090
M3 - Journal article
VL - 18
SP - 688
EP - 697
JO - Fuel Cells
JF - Fuel Cells
SN - 1615-6846
IS - 6
ER -