Preparation and characterization of proton exchange membranes based onsulfonated poly(ether ether ketone) doped with phosphorylated mesoporoussilica submicrospheres

WU Hong; YANG Hao; ZHAO Yuning; LI Zhen; JIANG Zhongyi

doi:10.11949/j.issn.0438-1157.20150520

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Preparation and characterization of proton exchange membranes based onsulfonated poly(ether ether ketone) doped with phosphorylated mesoporoussilica submicrospheres

更新时间：2025-12-10

- Preparation and characterization of proton exchange membranes based onsulfonated poly(ether ether ketone) doped with phosphorylated mesoporoussilica submicrospheres
- CIESC Journal Issue 1, Pages: 358-367(2016)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150520
  CLC： M911.4
- Online First：05 January 2016，
  
  Published：05 January 2016
- 稿件说明：
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WU Hong, YANG Hao, ZHAO Yuning, et al. Preparation and characterization of proton exchange membranes based onsulfonated poly(ether ether ketone) doped with phosphorylated mesoporoussilica submicrospheres[J]. CIESC Journal, 2016, (1): 358-367.
DOI：

WU Hong, YANG Hao, ZHAO Yuning, et al. Preparation and characterization of proton exchange membranes based onsulfonated poly(ether ether ketone) doped with phosphorylated mesoporoussilica submicrospheres[J]. CIESC Journal, 2016, (1): 358-367. DOI： 10.11949/j.issn.0438-1157.20150520.

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。

Abstract

Two kinds of phosphorylated mesoporous silica submicrospheres were prepared. The phosphoric acid groups ( PO3H2) 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-Ⅱ exhibited 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.

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