TY - JOUR
T1 - Bipolar polymer electrolyte interfaces for hydrogen-oxygen and direct borohydride fuel cells
AU - Arges, Christopher G.
AU - Prabhakaran, Venkateshkumar
AU - Wang, Lihui
AU - Ramani, Vijay
PY - 2014/9/3
Y1 - 2014/9/3
N2 - Direct borohydride fuel cells (DBFCs) using liquid hydrogen peroxide as the oxidant are safe and attractive low temperature power sources for unmanned underwater vehicles (UUVs) as they have excellent energy and power density and do not feature compressed gases or a flammable fuel stream. One challenge to this system is the disparate pH environment between the anolyte fuel and catholyte oxidant streams. Herein, a bipolar interface membrane electrode assembly (BIMEA) is demonstrated for maintaining pH control of the anolyte and catholyte compartments of the fuel cell. The prepared DBFC with the BIMEA yielded a promising peak power density of 110 mW cm-2. This study also investigated the same BIMEA for a hydrogen-oxygen fuel cell (H 2-O2 FC). The type of gas diffusion layer used and the gas feed relative humidity were found to impact fuel cell performance. Finally, a BIMEA featuring a silver electrocatalyst at the cathode in a H 2-O2 FC was successfully demonstrated.
AB - Direct borohydride fuel cells (DBFCs) using liquid hydrogen peroxide as the oxidant are safe and attractive low temperature power sources for unmanned underwater vehicles (UUVs) as they have excellent energy and power density and do not feature compressed gases or a flammable fuel stream. One challenge to this system is the disparate pH environment between the anolyte fuel and catholyte oxidant streams. Herein, a bipolar interface membrane electrode assembly (BIMEA) is demonstrated for maintaining pH control of the anolyte and catholyte compartments of the fuel cell. The prepared DBFC with the BIMEA yielded a promising peak power density of 110 mW cm-2. This study also investigated the same BIMEA for a hydrogen-oxygen fuel cell (H 2-O2 FC). The type of gas diffusion layer used and the gas feed relative humidity were found to impact fuel cell performance. Finally, a BIMEA featuring a silver electrocatalyst at the cathode in a H 2-O2 FC was successfully demonstrated.
KW - Anion exchange membranes
KW - Bipolar interfaces
KW - Bipolar membranes
KW - Borohydride peroxide fuel cells
KW - Direct borohydride fuel cells
KW - Polymer electrolyte fuel cells
UR - https://www.scopus.com/pages/publications/84906315528
U2 - 10.1016/j.ijhydene.2014.04.099
DO - 10.1016/j.ijhydene.2014.04.099
M3 - Article
AN - SCOPUS:84906315528
SN - 0360-3199
VL - 39
SP - 14312
EP - 14321
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 26
ER -