A path to improve proton conductivity: from a 3D hydrogen-bonded organic framework to a 3D copper-organic framework. (19th June 2019)

• Record Type: Journal Article
• Authors: Sun, Zhi-Bing; Li, Yi-Lin; Zhang, Zhe-Hua; Li, Zi-Feng; Xiao, Bo; Li, Gang
• Is Part Of: New journal of chemistry. Volume 43:Number 26(2019)
• Page Start: 10637
• Page End: 10644
• Publication Date: 2019-06-19
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c9nj02025j
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The proton conduction in one HOF and related MOF have been investigated and discussed. Abstract : To conduct a comparative study on proton conductivities of a hydrogen-bonded organic framework (HOF) and its related metal–organic framework (MOF), we selected and fabricated a 3D HOF (HOF-H3 L ) (H3 L = [3-(4-methyl-benzoyl)-thioureido]-acetic acid; CH3 C6 H4 C(O)NHC(S)NHCH2 COOH) and its related 3D copper MOF, {[CuI3CuII3L3 (DMF)2 (CH3 OH)(H2 O)]·3CH3 OH} n (1 ). BothHOF-H3 L and MOF1 exhibit high water stability. Their proton conductivities under different relative humidities (RHs) were fully investigated. Note that the MOF1 exhibited the optimized conductivity of 3.78 × 10 −4 S cm −1 that was nearly one order of magnitude larger than that ofHOF-H3 L (6.91 × 10 −5 S cm −1 ) at 100 °C and 98% RH. Based on the crystal data, E a calculations, water vapor absorptions and PXRD patterns, the proton-conducting mechanisms were suggested. This comparative investigation provides a new inspiration to researchers to design new proton-conductive materials in the future.