TY - JOUR
T1 - Composite membranes based on fully sulfonated poly(aryl ether ketone)/epoxy resin/different curing agents for direct methanol fuel cells
AU - Na, Tianyi
AU - Shao, Ke
AU - Zhu, Jing
AU - Sun, Hongcheng
AU - Xu, Dan
AU - Zhang, Zhuoqi
AU - Lew, Christopher M.
AU - Zhang, Gang
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant No. 21074044 & 51101073 ) and the Special Fund for Basic Scientific Research of Central Colleges, Jilin University (No. 201103088 ) and Doctoral Program of Higher Education of China (No. 20110061120019 ).
PY - 2013
Y1 - 2013
N2 - A fully sulfonated poly(aryl ether ketone) bearing pendent sulfoalkyl groups in the side chain (SNPAEK-100) is synthesized and used as the matrix membrane. Two series of composite membranes are obtained by introducing epoxy resins (TMBP) and two different curing agents with or without sulfonic acid groups (DDS and BDSA). All the membranes are investigated in detail as polymer electrolyte membranes. As expected, the water uptake, the methanol permeability, and the proton conductivity of the cross-linked membranes decrease with increasing epoxy resin content. Compared with STD-x membranes (0.101 S cm -1-0.233 S cm-1), the STB-x (0.171 S cm-1-0.266 S cm-1) membrane series reduce the loss of proton conductivity because of the sulfonated curing agent, BDSA. Other properties of the composite membranes, such as the mechanical properties and the thermal properties are also investigated. All the results indicate that the composite membranes based on SNPAEK-100 and BDSA are promising membrane candidates for direct methanol fuel cells.
AB - A fully sulfonated poly(aryl ether ketone) bearing pendent sulfoalkyl groups in the side chain (SNPAEK-100) is synthesized and used as the matrix membrane. Two series of composite membranes are obtained by introducing epoxy resins (TMBP) and two different curing agents with or without sulfonic acid groups (DDS and BDSA). All the membranes are investigated in detail as polymer electrolyte membranes. As expected, the water uptake, the methanol permeability, and the proton conductivity of the cross-linked membranes decrease with increasing epoxy resin content. Compared with STD-x membranes (0.101 S cm -1-0.233 S cm-1), the STB-x (0.171 S cm-1-0.266 S cm-1) membrane series reduce the loss of proton conductivity because of the sulfonated curing agent, BDSA. Other properties of the composite membranes, such as the mechanical properties and the thermal properties are also investigated. All the results indicate that the composite membranes based on SNPAEK-100 and BDSA are promising membrane candidates for direct methanol fuel cells.
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U2 - 10.1016/j.jpowsour.2012.12.082
DO - 10.1016/j.jpowsour.2012.12.082
M3 - Article
AN - SCOPUS:84872359945
SN - 0378-7753
VL - 230
SP - 290
EP - 297
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
