Crystalline Porous Organic Polymer Bearing -SO3H Functionality for High Proton Conductivity
Crystalline Porous Organic Polymer Bearing -SO3H Functionality for High Proton Conductivity
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DOI：
10.1021/acssuschemeng.9b06234
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发表时间：
2020-02-17
影响因子：
8.4
通讯作者：
Yamauchi, Yusuke
中科院分区：
文献类型：
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作者：
Bhanja, Piyali;Paui, Arnab;Yamauchi, Yusuke
在开发用于燃料电池的高效固体电解质的背景下，设计在结晶有机框架中具有内置-SO 3 H部分的高性能质子传导材料是非常具有挑战性的。本文中，我们报道了一种简单的化学路线，用于通过两种有机单体（即，氰尿酰氯和2，5-二氨基磺酸）。这种有机骨架的晶体结构已经从粉末X射线衍射数据中索引，揭示了单斜相，晶胞体积为1627埃（3）。MPOPS-1中内置磺酸基团的存在显著有助于这种多孔有机聚合物的高质子传导性。在350 K温度下，无水和潮湿条件下，所得MPOPS-1的质子电导率分别为1.49 × 10（-5）和3.07 × 10（-2）S cm（-1），优于许多先前报道的多孔有机聚合物。
Designing high-performing proton-conducting materials with in-built -SO3H moieties in the crystalline organic framework is very challenging in the context of developing an efficient solid electrolyte for fuel cells. Herein, we report a simple chemical route for synthesizing crystalline microporous sulfonic acid-functionalized porous organic polymers (MPOPS-1) via extended condensation polymerization between two organic monomers (i.e., cyanuric chloride and 2,5-diaminosulfonic acid) under refluxing conditions. The crystal structure of this organic framework has been indexed from powder X-ray diffraction data, revealing a monoclinic phase with a unit cell volume of 1627 angstrom(3). The presence of in-built sulfonic acid groups in MPOPS-1 contributes significantly to the high proton conductivity of this porous organic polymer. The resulting MPOPS-1 displays proton conductivities of 1.49 X 10(-5) and 3.07 X 10(-2) S cm(-1) at 350 K temperature under anhydrous and humid conditions, respectively, outperforming many previously reported porous organic polymers.