基于P_2O_5/SiO_2与磺化聚醚醚酮合成的无机/有机复合质子交换膜  

Inorganic/Organic Composite Proton Exchange Membrane Based on P_2O_5/SiO_2 and SPEEK

作　　者：周道武[1] 李海滨[1,2] 谢强[1] 邸志岗[1] 陈小晶[1] 

机构地区：[1]上海交通大学机械动力与工程学院燃料电池研究所,上海200240 [2]高性能陶瓷和超微结构国家重点实验室,上海200050

出　　处：《材料导报》2014年第6期8-12,共5页Materials Reports

基　　金：高性能陶瓷和超微结构国家重点实验室开放课题基金(SKL201302SIC)

摘　　要：采用溶胶-凝胶法制备P2O5/SiO2溶胶与P2O5/SiO2粉末,之后分别与磺化聚醚醚酮(SPEEK)复合,制得无机/有机复合质子交换膜并研究了两种膜的形貌、力学性能以及质子电导率。与纯SPEEK膜相比,P2O5/SiO2无机成分的引入能显著改善复合膜的质子导电性能。同时,P2O5/SiO2的不同引入方式导致复合膜具有不同的结构,进而引起复合膜力学性能与质子导电性能上的差异。在所制备的无机/有机复合膜中,含有40%P2O5/SiO2(质量分数)粉末的复合膜的质子电导率达到1.6×10-2 S/cm,其所组装的单电池的开路电压为0.95V,峰值功率密度达到446mW/cm2。Two kinds of inorganic/organic membranes were fabricated via mixing the P2O5/SiO2 powder and sol prepared by sol-gel method with SPEEK,respectively.The morphology,mechanical properties and proton conductivity of the membranes were studied.In contrast with the pure SPEEK membrane,the proton conductivity of the composite membranes is improved dramatically owing to the introduction of the inorganics of P2O5/SiO2.The introduction of P2O5/SiO2 in different manner leads to the different structures of composite membranes,thereby triggering the difference of the mechanical properties and proton conductivity of the composite membranes.In addition,of all the membranes prepared,the proton conductivity of the composite membrane containing 40wt％ P2O5/SiO2 powder reaches 1.6× 10-2 S/cm,the open circuit voltage of the single cell assembled by this membrane 0.95 V and its peak power density 446 mW/cm2.

关 键 词：P2O5 SIO2 无机 有机 质子交换膜 溶胶-凝胶 燃料电池 

分 类 号：TM911[电气工程—电力电子与电力传动]