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Two‐in‐One: Inherent Anhydrous and Water‐Assisted High Proton Conduction in a 3D Metal–Organic Framework
Authors:Sanjog S Nagarkar  Sreekuttan M Unni  Amitosh Sharma  Dr Sreekumar Kurungot  Dr Sujit K Ghosh
Institution:1. Indian Institute of Science Education & Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune‐411008 (India) http://www.iiserpune.ac.in/~sghosh;2. Physical and Materials Chemistry Division, National Chemical Laboratory (NCL), Dr. Homi Bhabha Road, Pashan, Pune‐411008 (India)
Abstract:The development of solid‐state proton‐conducting materials with high conductivity that operate under both anhydrous and humidified conditions is currently of great interest in fuel‐cell technology. A 3D metal–organic framework (MOF) with acid–base pairs in its coordination space that efficiently conducts protons under both anhydrous and humid conditions has now been developed. The anhydrous proton conductivity for this MOF is among the highest values that have been reported for MOF materials, whereas its water‐assisted proton conductivity is comparable to that of the organic polymer Nafion, which is currently used for practical applications. Unlike other MOFs, which conduct protons either under anhydrous or humid conditions, this compound should represent a considerable advance in the development of efficient solid‐state proton‐conducting materials that work under both anhydrous and humid conditions.
Keywords:conducting materials  fuel cells  metal–  organic frameworks  porous materials  proton conduction
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