【作者】 冉冬琴； 王飞龙； 张彤； 戴翔； 樊松鸽； 胡朝霞； 陈守文；

【机构】 南京理工大学环境与生物工程学院；

【摘要】 以4,4’-二氟-3,3’-二磺酸二苯砜二钠盐、4,4’-二氟二苯砜与4,4’-联苯二酚为原料,通过芳香亲核取代反应成功制备了磺化聚芳醚砜(SPAES),利用溶液浇注法制备了SPAES质子交换膜并考察了它们的基本物理性能。设计并组装MFC,考察了制备的SPAES膜在MFC中的产电性能,并与商用CMI-7000S膜进行了对比。结果表明,制备的SPAES具有良好的机械性能、稳定性及质子导电率;在MFC中,SPAES(4/6)、SPAES(5/5)膜的开路电压分别为805 mV、795mV;最大功率密度分别为1.20W/m~2 (2.53A/m~2)和1.18W/m~2(2.17A/m~2),均高于同等条件下的CMI-7000S膜(开路电压:793 mV;功率密度:0.90W/m~2(1.67A/m~2)),表明该类膜在MFC中具有良好的应用前景。更多还原

【Abstract】 Sulfonated poly(arylene ether sulfone)(SPAES) were prepared from3,3’-disulfonate-4,4’-difluorodiphenyl sulfone,4,4’-difluorodiphenyl sulfone and 4,4’-biphenol through aromatic nucleophilic substitution.Proton exchange membranes of SPAES were prepared through solution casting and their fundamental physical properties were investigated.Microbial fuel cells(MFCs) were designed and fabricated and their performances were evaluated with SPAES membranes as well as commercial CMI-7000 S for comparison.The obtained SPAES membranes exhibited good mechanical properties,stability and proton conductivity.In MFC,SPAES(4/6) and SPAES(5/5) showed open circuit voltage of 805 mV and 795 mV,and maximum power output of 1.20 W/m~2(at 2.53 A/m~2) and 1.18 W/m~2(at 2.17 A/m~2),respectively,both higher than those of CMI-7000 S(open circuit voltage:793 mV,maximum power output:0.90 W/m~2 at1.67 A/m~2),indicating their high potentials in MFCs.更多还原