磷酸化二氧化硅填充磺化聚醚醚酮质子交换膜的制备及表征（英文）  

Preparation and characterization of proton exchange membranes based on sulfonated poly(ether ether ketone) doped with phosphorylated mesoporous silica submicrospheres

作　　者：吴洪[1,2,3] 杨昊[1,2] 赵宇宁[2] 李震[1,2] 姜忠义[1,2] 

机构地区：[1]天津化学化工协同创新中心,天津300072 [2]天津大学化工学院绿色化学合成与转化教育部重点实验室,天津300072 [3]天津市膜科学与海水淡化技术重点实验室,天津300072

出　　处：《化工学报》2016年第1期358-367,共10页CIESC Journal

基　　金：supported by the National Science Fund for Distinguished Young Scholars(21125627);the Program for New Century Excellent Talents in University(NCET-10-0623);the Programme of Introducing Talents of Discipline to Universities(B06006)~~

摘　　要：制备了两种磷酸化改性的介孔二氧化硅亚微米球形颗粒,分别为仅外表面接枝磷酸根基团的颗粒(PMPS-Ⅰ)和内外表面均接枝磷酸根基团的颗粒(PMPS-Ⅱ)。颗粒具有均一的尺寸和规则排布的六面体一维贯通孔道。将制备的二氧化硅颗粒与磺化聚醚醚酮(SPEEK)溶液共混制备杂化膜。与填充PMPS-Ⅰ的杂化膜相比,填充PMPS-Ⅱ的杂化膜显示出较好的质子传导性能。当PMPS-Ⅱ的填充量为5%(质量)时,杂化膜在60℃、100%相对湿度下最高质子传导率为0.241 S·cm^(-1)。研究结果表明,连续贯通的质子传递通道有助于提高杂化膜的质子传导率。Two kinds of phosphorylated mesoporous silica submicrospheres were prepared. The phosphoric acid groups（ PO_3H_2） were grafted either only on the particle outer surface（PMPS-Ⅰ） or on both the outer surface and the inner pore walls（PMPS-Ⅱ）. All the submicrospheres exhibited a uniform particle size and possessed well-aligned one-dimensional hexahedral pores. Hybrid membranes were fabricated by directly blending silica with the sulfonated poly（ether ether ketone）（SPEEK） solutions. The hybrid membranes doped with PMPS-Ⅱexhibited higher proton conductivity compared to the ones with PMPS-Ⅰ. The highest proton conductivity was 0.241 S·cm-1 at 60℃ and 100% relative humidity（RH） for the hybrid membrane with 5%（mass） of PMPS-Ⅱ. The experimental results indicated that continuous proton conduction channels were advantageous for the enhancement of proton conductivity of the hybrid membranes.

关 键 词：燃料电池 膜 质子传导率 甲醇渗透率 磷酸化 二氧化硅 

分 类 号：TM911.4[电气工程—电力电子与电力传动]