Chandra, Suman ; Kundu, Tanay ; Kandambeth, Sharath ; BabaRao, Ravichandar ; Marathe, Yogesh ; Kunjir, Shrikant M. ; 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 0002-7863
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Official URL: http://doi.org/10.1021/ja502212v
Related URL: http://dx.doi.org/10.1021/ja502212v
Abstract
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 (σ = 9.9 × 10–4 S cm–1) and anhydrous state (σ = 6.7 × 10–5 S cm–1). This report constitutes the first emergence of COFs as proton conducting materials.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| Keywords: | Covalent Organic Frameworks; Reaction Mechanisms; Proton Conductivity; Materials; Stability. |
| ID Code: | 115812 |
| Deposited On: | 16 Mar 2021 09:10 |
| Last Modified: | 16 Mar 2021 09:10 |
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