材料科学
两性离子
化学物理
质子
离子电导率
离子
聚苯乙烯磺酸盐
无水的
电解质
偶极子
离子键合
电导率
质子输运
聚合物
化学
物理化学
分子
有机化学
佩多:嘘
复合材料
物理
量子力学
电极
作者
Onnuri Kim,Kyoungwook Kim,U Hyeok Choi,Moon Jeong Park
标识
DOI:10.1038/s41467-018-07503-4
摘要
The synthesis of high-conductivity solid-state electrolyte materials with eliminated polarization loss is a great challenge. Here we show a promising potential of single-ion block copolymers with crystalline protogenic channels as efficient proton conductors. Through the self-organization of zwitterion, imidazole, and polystyrene sulfonate with controlled dipolar interactions therein, the distance between neighboring proton donors and acceptors in ionic crystals, as well as the dipolar orientation in nanoscale ionic phases was precisely tuned. This allowed a markedly high static dielectric constant comparable to water and fast structural diffusion of protons with a low potential barrier for single-ion polymers. The optimized sample exhibited a high proton diffusion coefficient of 2.4 × 10-6 cm2 s-1 under anhydrous conditions at 90 °C.
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