Phosphoric Acid Loaded Azo (鈭扤鈺怤鈭? Based Covalent Organic Framework for Proton Conduction

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• 作者：Suman Chandra ; Tanay Kundu ; Sharath Kandambeth ; Ravichandar BabaRao ; Yogesh Marathe ; Shrikant M. Kunjir ; Rahul Banerjee
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：May 7, 2014
• 年：2014
• 卷：136
• 期：18
• 页码：6570-6573
• 全文大小：308K
• 年卷期：v.136,no.18(May 7, 2014)
• ISSN：1520-5126

文摘

Two new chemically stable functional crystalline covalent organic frameworkds (COFs) (Tp-Azo and Tp-Stb) were synthesized using the Schiff base reaction between triformylphloroglucinol (Tp) and 4,4鈥?azodianiline (Azo) or 4,4鈥?diaminostilbene (Stb), respectively. Both COFs show the expected keto-enamine form, and high stability toward boiling water, strong acidic, and basic media. H₃PO₄ doping in Tp-Azo leads to immobilization of the acid within the porous framework, which facilitates proton conduction in both the hydrous (蟽 = 9.9 脳 10^鈥? S cm^鈥?) and anhydrous state (蟽 = 6.7 脳 10^鈥? S cm^鈥?). This report constitutes the first emergence of COFs as proton conducting materials.