TY - JOUR
T1 - Acid-base blend membranes based on Nafion®/aminated SPEEK for reducing methanol permeability
AU - Tsai, Jie Cheng
AU - Lin, Chien Kung
PY - 2011/3
Y1 - 2011/3
N2 - Sulfonated poly(ether ether ketone)s (SPEEKs) were further substituted on the polymer main chain by amino groups to form an acid-basic polymer, and blended with acid polymeric Nafion® to create composite membranes. The acid-base blend membranes containing ionic crosslinking exhibited lower water uptake than recast Nafion®, and the methanol permeability was reduced significantly for various contents of aminated SPEEK, with a maximum proton conductivity of ~0.063Scm-1 at 30°C. The single-cell performance of the blend membranes with various contents of aminated SPEEK showed 20-26mWcm-2 for S45A47 at 80°C. Both the power density and open circuit voltage were higher than those of Nafion® 115 and recast Nafion®. The acid-base blend membranes satisfy the requirements for proton exchange membranes in the context of direct methanol fuel cell (DMFC) applications.
AB - Sulfonated poly(ether ether ketone)s (SPEEKs) were further substituted on the polymer main chain by amino groups to form an acid-basic polymer, and blended with acid polymeric Nafion® to create composite membranes. The acid-base blend membranes containing ionic crosslinking exhibited lower water uptake than recast Nafion®, and the methanol permeability was reduced significantly for various contents of aminated SPEEK, with a maximum proton conductivity of ~0.063Scm-1 at 30°C. The single-cell performance of the blend membranes with various contents of aminated SPEEK showed 20-26mWcm-2 for S45A47 at 80°C. Both the power density and open circuit voltage were higher than those of Nafion® 115 and recast Nafion®. The acid-base blend membranes satisfy the requirements for proton exchange membranes in the context of direct methanol fuel cell (DMFC) applications.
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U2 - 10.1016/j.jtice.2010.07.003
DO - 10.1016/j.jtice.2010.07.003
M3 - Article
AN - SCOPUS:78651487557
SN - 1876-1070
VL - 42
SP - 281
EP - 285
JO - Journal of the Taiwan Institute of Chemical Engineers
JF - Journal of the Taiwan Institute of Chemical Engineers
IS - 2
ER -