In this paper,Nafion membrane was firstly modified by copper phthalocyanine tetrasulfonic acid tetrasodium salt(CuTSPc)to prepare the Nafion/CuTSPc-x composite membranes.FTIR,XRD and SEM results revealed the successfu...In this paper,Nafion membrane was firstly modified by copper phthalocyanine tetrasulfonic acid tetrasodium salt(CuTSPc)to prepare the Nafion/CuTSPc-x composite membranes.FTIR,XRD and SEM results revealed the successful incorporation of CuTSPc into Nafion and good compatibility between the two composites.The proton conductivities of the Nafion/CuTSPc-x composite membranes were evidently higher than pure cast Nafion membrane,and increased with CuTSPc contents.Among them,the Nafion/CuTSPc-6%membrane with the highest ion exchange capacity(1.14 mequivg^(-1))exhibited the highest proton conductivity of 0.084 S cm^(-1)at 30℃and 0.131 S cm^(-1)at 80C,respectively.When fabricated of a membrane electrode assembly(MEA),the Nafion/CuTSPc-4.5%membrane displayed an initial fuel cell performance with a power density of 43.3mWcm^(-2)at room temperature,close to that for pure cast Nafion membrane.Benefiting from the compact structure,high proton conductivity and outstanding stability,the Nafion/CuTSPc-x composite membranes show promising potentials for fuel cell applications.展开更多
基金This work is financially supported by the National Key R&D Program of China(2017YFB0102900)National Natural Science Foundation of China(U1510120).
文摘In this paper,Nafion membrane was firstly modified by copper phthalocyanine tetrasulfonic acid tetrasodium salt(CuTSPc)to prepare the Nafion/CuTSPc-x composite membranes.FTIR,XRD and SEM results revealed the successful incorporation of CuTSPc into Nafion and good compatibility between the two composites.The proton conductivities of the Nafion/CuTSPc-x composite membranes were evidently higher than pure cast Nafion membrane,and increased with CuTSPc contents.Among them,the Nafion/CuTSPc-6%membrane with the highest ion exchange capacity(1.14 mequivg^(-1))exhibited the highest proton conductivity of 0.084 S cm^(-1)at 30℃and 0.131 S cm^(-1)at 80C,respectively.When fabricated of a membrane electrode assembly(MEA),the Nafion/CuTSPc-4.5%membrane displayed an initial fuel cell performance with a power density of 43.3mWcm^(-2)at room temperature,close to that for pure cast Nafion membrane.Benefiting from the compact structure,high proton conductivity and outstanding stability,the Nafion/CuTSPc-x composite membranes show promising potentials for fuel cell applications.
