TY - JOUR
T1 - Recent advances in alkali-doped polybenzimidazole membranes for fuel cell applications
AU - Wu, Q. X.
AU - Pan, Z. F.
AU - An, Liang
N1 - The authors gratefully acknowledge the financial supports of the National Natural Science Foundation of China (No. 51506039) and the Shenzhen Science and Technology Fund (JCYJ20170818093905960).
PY - 2018/6/1
Y1 - 2018/6/1
N2 - Polybenzimidazole (PBI), with a well-known excellent thermal stability, has been recognized as an alternative for anion exchange membrane fuel cells (AEMFC), primarily because it can serve as an ionic conductor after doping with inorganic hydroxides (typically KOH/NaOH) and thus allows fuel cells to be operated at high temperatures (currently as high as 120 °C). In addition, alkali-doped PBI membranes also offer many other favored physiochemical properties, such as high ionic conductivity. The objective of this article is to provide a review of recent research on the alkali-doped PBI membranes and their applications in fuel cells, including mechanisms of ion conduction through the alkali-doped PBI membranes, stability of the PBI membranes doped with alkali, strategies aiming at improving the ionic conductivity of the PBI membranes doped with alkali, as well as the performance of alkali-doped PBI membrane based fuel cells. Additionally, future perspectives relating to the development of alkali-doped PBI membranes and their applications in fuel cells are also highlighted.
AB - Polybenzimidazole (PBI), with a well-known excellent thermal stability, has been recognized as an alternative for anion exchange membrane fuel cells (AEMFC), primarily because it can serve as an ionic conductor after doping with inorganic hydroxides (typically KOH/NaOH) and thus allows fuel cells to be operated at high temperatures (currently as high as 120 °C). In addition, alkali-doped PBI membranes also offer many other favored physiochemical properties, such as high ionic conductivity. The objective of this article is to provide a review of recent research on the alkali-doped PBI membranes and their applications in fuel cells, including mechanisms of ion conduction through the alkali-doped PBI membranes, stability of the PBI membranes doped with alkali, strategies aiming at improving the ionic conductivity of the PBI membranes doped with alkali, as well as the performance of alkali-doped PBI membrane based fuel cells. Additionally, future perspectives relating to the development of alkali-doped PBI membranes and their applications in fuel cells are also highlighted.
KW - Alkali-doped PBI membranes
KW - Anion exchange membrane fuel cells
KW - Fuel cells
KW - Physiochemical properties
KW - Polybenzimidazole
KW - Single-cell performance
UR - http://www.scopus.com/inward/record.url?scp=85044510497&partnerID=8YFLogxK
U2 - 10.1016/j.rser.2018.03.024
DO - 10.1016/j.rser.2018.03.024
M3 - Review article
SN - 1364-0321
VL - 89
SP - 168
EP - 183
JO - Renewable and Sustainable Energy Reviews
JF - Renewable and Sustainable Energy Reviews
ER -
