TY - JOUR
T1 - Synthesis of sulfonated poly(arylene ether ketone) block copolymers for proton exchange membrane fuel cells
AU - Oh, Kwangjin
AU - Ketpang, Kriangsak
AU - Kim, Hasuck
AU - Shanmugam, Sangaraju
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - Sulfonated poly(arylene ether ketone) (SPAEK) block copolymers were synthesized through nucleophilic aromatic substitution polymerization. Compared with a Nafion (NRE-212), state-of-the-art proton conducting membrane, the block copolymer membrane showed a well separated phase morphology and high proton conductivity under fully hydrated condition at 80 °C. The fuel cell operated with a SPAEK membrane showed a current density of 1617 mA cm-2 at 0.6 V under 100% relative humidity (RH), whereas a NRE-212 membrane exhibited a current density of 1238 mA cm-2, which is about 30% lower than newly prepared SPEAK membrane. In addition, the maximum power density of 1160, and 800 mW cm-2 was observed for SPAEK, NRE-212 membranes, respectively at 80 °C under 100% RH condition. The SPEAK membrane exhibited 1.4-folds enhancement in the maximum power density in comparison with NRE-212 membrane.
AB - Sulfonated poly(arylene ether ketone) (SPAEK) block copolymers were synthesized through nucleophilic aromatic substitution polymerization. Compared with a Nafion (NRE-212), state-of-the-art proton conducting membrane, the block copolymer membrane showed a well separated phase morphology and high proton conductivity under fully hydrated condition at 80 °C. The fuel cell operated with a SPAEK membrane showed a current density of 1617 mA cm-2 at 0.6 V under 100% relative humidity (RH), whereas a NRE-212 membrane exhibited a current density of 1238 mA cm-2, which is about 30% lower than newly prepared SPEAK membrane. In addition, the maximum power density of 1160, and 800 mW cm-2 was observed for SPAEK, NRE-212 membranes, respectively at 80 °C under 100% RH condition. The SPEAK membrane exhibited 1.4-folds enhancement in the maximum power density in comparison with NRE-212 membrane.
KW - Block copolymers
KW - Membrane
KW - Polymer electrolyte membrane fuel cells
KW - Proton conductivity
KW - Sulfonated poly(arylene ether ketone)
UR - http://www.scopus.com/inward/record.url?scp=84958259957&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2016.02.027
DO - 10.1016/j.memsci.2016.02.027
M3 - Article
AN - SCOPUS:84958259957
SN - 0376-7388
VL - 507
SP - 135
EP - 142
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -