Simple and universal synthesis of sulfonated porous organic polymers with high proton conductivity,Materials Chemistry Frontiers

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Simple and universal synthesis of sulfonated porous organic polymers with high proton conductivity
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2020-06-03 , DOI: 10.1039/d0qm00276c
Zhongping Li _{1,

2,

3,

4} , Yuze Yao _{1,

2,

3,

4} , Dongjin Wang _{1,

2,

3,

4} , Md. Mahmudul Hasan _{1,

2,

3,

4} , Athchaya Suwansoontorn _{1,

2,

3,

4} , He Li _{5,

6,

7,

8} , Gang Du _{1,

2,

3,

4} , Zhaohan Liu _{1,

2,

3,

4} , Yuki Nagao _{1,

2,

3,

4}

Affiliation

Along with the rapid development of economic integration and regional economization worldwide, the growth of green and sustainable resources has posed a major concern. Proton-exchange membrane fuel cells (PEMFCs) are examples of green, resource-conserving, and environmentally protective energy resources. Porous organic polymers (POPs), a new class of porous materials with high porosity, permanent pores, excellent stability, and easily modified functional units, can offer a good platform as proton-conducting electrolytes for fuel cells. However, a simple and general design to construct POPs with high proton conductivity presents a challenging project. For this study, we used simple benzene and aromatic benzene as building units through a facile and cost-effective process to create a series of POPs. We further prepared sulfonated POPs (S-POPs) with high-density sulfonic acid groups via post-sulphonation. The S-POPs displayed excellent proton conductivity up to 10⁻² S cm⁻¹ at 25 °C and 95% relative humidity (RH), and high conductivity up to 10⁻¹ S cm⁻¹ at 80 °C and 95% RH, which ranked top among the most proton-conducting POPs. These results suggest that construction of S-POPs offers a simple and universal way to evolve structural designs for high proton-conductive materials.

中文翻译：

质子传导率高的磺化多孔有机聚合物的简单通用合成

随着世界范围内经济一体化和区域节约的快速发展，绿色和可持续资源的增长引起了人们的极大关注。质子交换膜燃料电池（PEMFC）是绿色，节约资源和环保能源的示例。多孔有机聚合物（POPs）是具有高孔隙率，永久孔，出色的稳定性和易于改性的功能单元的新型多孔材料，可以作为燃料电池质子传导电解质的良好平台。然而，构造具有高质子传导性的POP的简单且通用的设计提出了具有挑战性的项目。在本研究中，我们通过简单且经济高效的方法使用简单的苯和芳族苯作为建筑单位来创建一系列POP。通过后磺化。S-POPs在25°C和95％相对湿度（RH）时显示出优异的质子传导率，最高10 ^-2 S cm ^-1，在80°C和95％RH时显示高质子传导率，最高10 ^-1 S cm ^-1，在所有质子传导性持久性有机污染物中排名最高。这些结果表明，S-POPs的构建提供了一种简单且通用的方法来发展高质子传导性材料的结构设计。

更新日期：2020-07-30

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