Conjugated Microporous Polymer with CC and C-F Bonds: Achieving Remarkable Stability and Super Anhydrous Proton Conductivity

被引：18

作者：

Jiang, Xinzhu ^{[1
]}

Zhang, Kun ^{[1
]}

Huang, Yang ^{[2
,3
]}

Xu, Bingqing ^{[1
]}

Xu, Xuefeng ^{[1
]}

Zhang, Jiajun ^{[1
]}

Liu, Ziya ^{[1
]}

Wang, Yuxiang ^{[1
]}

Pan, Yaoyao ^{[1
]}

Bian, Shuyang ^{[1
]}

Chen, Qihang ^{[1
]}

Wu, Xiaowei ^{[1
]}

Zhang, Gen ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Jiangsu, Peoples R China

[2] Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Nanjing 210037, Peoples R China

[3] Nanjing Forestry Univ, Joint Int Res Lab Lignocellulos Funct Mat, Nanjing 210037, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2021年 / 13卷 / 13期

关键词：

conjugated microporous polymer; anhydrous proton conductivity; perfluoroalkyl; hydrophobic; phosphoric acid doping; METAL-ORGANIC FRAMEWORK; SUPERPROTONIC CONDUCTIVITY; STRUCTURAL TRANSFORMATION; CRYSTALLINE; STATE;

D O I：

10.1021/acsami.1c02355

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Introducing nonvolatile liquid acids into porous solids is a promising solution to construct anhydrous proton-conducting electrolytes, but due to weak coordination or covalent bonds building these solids, they often suffer from structural instability in acidic environments. Herein, we report a series of steady conjugated microporous polymers (CMPs) linked by robust alkynyl bonds and functionalized with perfluoroalkyl groups and incorporate them with phosphoric acid. The resulting composite electrolyte exhibits high anhydrous proton conductivity at 30-120 degrees C (up to 4.39 x 10(-3) S cm(-1)), and the activation energy is less than 0.4 eV. The excellent proton conductivity is attributed to the hydrophobic pores that provide nanospace for continuous proton transport, and the hydrogen bonding between phosphoric acid and perfluoroalkyl chains of CMPs promotes short-distance proton hopping from one side to the other.

引用

页码：15536 / 15541

页数：6

共 42 条

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