首页|UiO-66-NH2复合磺化聚磷腈质子交换膜的制备与表征

UiO-66-NH2复合磺化聚磷腈质子交换膜的制备与表征

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
金属有机框架(MOF)材料由于具有结构可调、孔隙率高、比表面积大等特点受到广泛关注.将官能团修饰的MOF引入到能够提供质子传导的离子型聚合物中,能够制备具有较高质子传导率的质子交换膜.本文将UiO-66-NH2引入到磺化聚磷腈(SPFPP)中制备了复合质子交换膜,并表征了复合膜的热稳定性能、溶胀度、吸水率和质子传导率.复合膜具有较优异的热稳定性能,复合膜的溶胀度小于纯的SPFPP膜.UiO-66-NH2能够提高复合膜的保水能力,因而复合膜的吸水率高于纯的SPFPP膜.这种高的保水能力可以提高膜在高湿度条件下的质子传导率,复合膜SP/UiO-66-NH2-0.6的质子传导率在80 ℃、100％湿度条件下可达到0.179 S/cm,而在相同条件下纯的SPFPP膜的质子传导率为0.120 S/cm.
Preparation and Characterization of UiO-66-NH2 Composite Sulfonated Polyphosphazene Proton Exchange Membranes
Metal organic framework(MOF)materials have attracted widespread attention due to their tunable structure,high porosity,and large specific surface area.MOF modified with functional groups were introduced into ionic polymers that could provide proton conduction,which could prepare proton exchange membranes with high proton conductivity.In this paper,UiO-66-NH2 were introduced into sulfonated polyphosphazene(SPFPP)to prepare composite proton exchange membranes,the thermal stability,swelling degree,water uptake,and proton conductivity were characterized.Composite membranes exhibits excellent thermal stability,the swelling degree of the composite membranes are lower than that of the pure SPFPP membrane.UiO-66-NH2 could improve the water retention capacity of composite membranes,resulting in higher water uptakes of composite membranes than pure SPFPP membranes.This higher water retention capacity could improve the proton conductivity of the membrane under high humidity conditions.The proton conductivity of composite membranes SP/UiO-66-NH2-0.6 reaches up to 0.179 S/cm under 80 ℃,100％RH,while the proton conductivity of pure SPFPP membranes is 0.120 S/cm under the same conditions.

metal organic framework materialUiO-66-NH2sulfonated polyphosphazeneswelling degreewater uptakeproton conductivity

付凤艳、高志华、王言、王晓红、张丽、王培、刘彦彬

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衡水学院化学系,衡水 053000

金属有机框架材料 UiO-66-NH2 磺化聚磷腈 溶胀度 吸水率 质子传导率

河北省高等学校科学研究项目(科学技术)衡水学院校级培育基金项目衡水学院校级培育基金项目衡水学院校级课题衡水学院校级课题衡水学院校级课题"河北省湿地保护与绿色发展协同创新中心"专项课题"河北省湿地保护与绿色发展协同创新中心"专项课题

ZC20241302023XJZX182023XJZX252023ZRZ032023ZRY172024ZRZ032023XTCX0092023XTCX033

2024

人工晶体学报
中材人工晶体研究院

人工晶体学报

CSTPCD北大核心
影响因子：0.554
ISSN：1000-985X
年,卷(期)：2024.53(10)