Phosphoric Acid Loaded Azo (-N=N-) Based Covalent Organic Framework for Proton Conduction
Phosphoric Acid Loaded Azo (-N=N-) Based Covalent Organic Framework for Proton Conduction
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DOI：
10.1021/ja502212v
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发表时间：
2014-05-07
影响因子：
15
通讯作者：
Banerjee, Rahul
中科院分区：
文献类型：
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作者：
Chandra, Suman;Kundu, Tanay;Banerjee, Rahul
利用偶氮二苯胺（Azo）和二氨基二苯乙烯（Stb）与三甲酰间苯三酚（Tp）的Schiff碱反应，合成了两种新的化学稳定的功能性结晶共价有机骨架（COFs）（Tp-Azo和Tp-Stb）。两种COF都显示出预期的酮-烯胺形式，以及对沸水、强酸和碱性介质的高稳定性。TP-Azo中的H3 PO 4掺杂导致酸固定在多孔框架内，这促进了水合（σ = 9.9 X 10（-4）S cm（-1））和无水状态（σ = 6.7 X 10（-5）S cm（-1））的质子传导。这份报告构成了COFs作为质子传导材料的第一次出现。
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'-azodianiline (Azo) or 4,4'-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 (sigma = 9.9 X 10(-4) S cm(-1)) and anhydrous state (sigma = 6.7 X 10(-5) S cm-1). This report constitutes the first emergence of COFs as proton conducting materials.