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Synthesis of Crystalline Porous Organic Salts with High Proton Conductivity
Author(s) -
Xing Guolong,
Yan Tingting,
Das Saikat,
Ben Teng,
Qiu Shilun
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201800423
Subject(s) - porosity , conductivity , proton , materials science , porous medium , chemical engineering , organic base , membrane , base (topology) , inorganic chemistry , chemistry , composite material , organic chemistry , mathematical analysis , biochemistry , physics , mathematics , quantum mechanics , engineering
Self‐assembled crystalline porous organic salts (CPOSs) formed by an acid–base combination and with one‐dimensional polar channels containing water molecules have been synthesized. The water content in the channels of the porous salts plays an important role in the proton conduction performance of the materials. The porous salts described in this study feature high proton conductivity at ambient conditions and can reach as high as 2.2×10 −2 S cm −1 at 333 K and under high humid conditions. This is among the best conductivity values reported to date for porous materials, for example, metal–organic frameworks and hydrogen‐bonded organic frameworks. These materials exhibiting permanent porosity represent a group of porous materials and may find interesting applications in proton‐exchange membrane fuel cells.