改性氧化石墨烯/烷基磺酸聚磷腈复合质子交换膜的制备与表征  

Preparation and characterization of modified graphene oxide/alkylsulfonic acid polyphosphazene hybrid membranes for proton exchange membrane fuel cell

作　　者：付凤艳 邢广恩[1] 李丽霞 高志华[1] 张彦青[1] 陈思妍 Fu Fengyan;Xing Guangen;Li Lixia;Gao Zhihua;Zhang Yanqing;Chen Siyan(Department of Applicative Chemistry,Hengshui University,Hengshui 053000)

机构地区：[1]衡水学院应用化学系,衡水053000

出　　处：《化工新型材料》2022年第12期87-90,95,共5页New Chemical Materials

基　　金：河北省高等学校科学研究项目(BJ2019206);大学生科技创新能力培育专项(22E50258D);衡水学院高层次人才科研启动基金项目(2018GC10);衡水学院高层次人才科研启动基金项目(2019GC10);河北省重点研发计划自筹项目(18214321)。

摘　　要：制备了含有烷基磺酸侧链的聚磷腈(PFSPP),对氧化石墨烯进行改性制备了季铵盐化氧化石墨烯(QGO),通过共混法制备了QGO/PFSPP质子交换复合膜。通过对复合膜的吸水率、溶胀度、抗氧化性和电化学性能测试,表明复合膜的吸水率和溶胀度都低于纯PFSPP膜;并且具有较优异的抗氧化性能。复合膜PFS-3-QGO在80℃条件下具有最高的质子传导率,为0.09S/cm。研究结果表明,具有稳定性能的复合膜QGO/PFSPP可以作为质子交换膜的潜在备选材料。Polyphosphazene containing alkyl sulfonic acid side chains(PFSPP) was prepared, quaternized graphene oxide(QGO) was further prepared by modifying graphene oxide.Subsequently, a series of novel alkylsulfonic acid polyphosphazene-based hybrid membranes(PFS-x-QGO) containing QGO(QGO/PFSPP) were obtained by blending.The water uptake, swelling ratio, oxidative stabilities and proton conductivities of QGO/PFSPP were measured.The test results showed that all composite membranes exhibited lower swelling ratio and water uptake than that of pure PFSPP membrane;moreover, they displayed high oxidative stabilities.The highest proton conductivity rate of SP-3-QGO composite membrane was about 0.09 S/cm at 80℃.All the results indicated that the composite membranes with excellent stabilization were the potential candidate materials for proton exchange membranes.

关 键 词：质子交换膜 烷基磺酸聚磷腈 氧化石墨烯 复合膜 

分 类 号：O631[理学—高分子化学]