电导率
质子
多孔性
导电体
相对湿度
电阻率和电导率
化学
耐久性
聚合物
材料科学
化学工程
物理化学
有机化学
复合材料
热力学
物理
工程类
量子力学
作者
Sun Young Kim,Min-Jung Kang,Dong Won Kang,Hyojin Kim,Jong Hyeak Choe,Yun Hu,Chang Seop Hong
标识
DOI:10.1002/anie.202214301
摘要
We proposed a new strategy to maximize the density of acidic groups by modulating the electronic effects of the substituents for high-performance proton conductors. The conductivity of the sulfonated 1-MeL40-S with methyl group corresponds to 2.29×10-1 S cm-1 at 80 °C and 90 % relative humidity, remarkably an 22100-fold enhancement over the nonsulfonated 1-MeL40. 1-MeL40-S maintains long-term conductivity for one month. We confirm that this synthetic method is generalized to the extended version POPs, 2-MeL40-S and 3-MeL40-S. In particular, the conductivities of the POPs compete with those of top-level porous organic conductors. Moreover, the activation energy of the POPs is lower than that of the top-performing materials. This study demonstrates that systematic alteration of the electronic effects of substituents is a useful route to improve the conductivity and long-term durability of proton-conducting materials.
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