Chandra, Suman and Kundu, Tanay and Kandambeth, Sharath and BabaRao, Ravichandar and Marathe, Yogesh and Kunjir, Shrikant M. and Banerjee, Rahul (2014) Phosphoric acid Loaded Azo (-N=N-) based Covalent Organic Framework for Proton Conduction. Journal of the American Chemical Society, 136 (18). pp. 6570-6573. ISSN 1520-5126

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Two new chemically stable functional crystalline 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 towards 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 (σ=9.9×10-4 Scm-1) and anhydrous state (σ=6.7×10-5 Scm-1). This report constitutes the first time emergence of COFs as proton conducting materials.

Item Type: Article
Subjects: Materials Chemistry
Depositing User: Mr Tanay Kundu
Date Deposited: 30 Jan 2015 04:41
Last Modified: 09 Mar 2015 06:21

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