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Article Dans Une Revue Nature Communications Année : 2018

A robust zirconium amino acid metal-organic framework for proton conduction

Sujing Wang
Antoine Tissot
William Shepard
Christian Serre

Résumé

Proton conductive materials are of significant importance and highly desired for clean energy-related applications. Discovery of practical metal-organic frameworks (MOFs) with high proton conduction remains a challenge due to the use of toxic chemicals, inconvenient ligand preparation and complication of production at scale for the state-of-the-art candidates. Herein, we report a zirconium-MOF, MIP-202(Zr), constructed from natural α-amino acid showing a high and steady proton conductivity of 0.011 S cm−1 at 363 K and under 95% relative humidity. This MOF features a cost-effective, green and scalable preparation with a very high space-time yield above 7000 kg m−3 day−1. It exhibits a good chemical stability under various conditions, including solutions of wide pH range and boiling water. Finally, a comprehensive molecular simulation was carried out to shed light on the proton conduction mechanism. All together these features make MIP-202(Zr) one of the most promising candidates to approach the commercial benchmark Nafion.

Domaines

Matériaux
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Dates et versions

hal-01943439 , version 1 (03-12-2018)

Licence

Paternité - Pas d'utilisation commerciale

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Sujing Wang, Mohammad Wahiduzzaman, Louisa Davis, Antoine Tissot, William Shepard, et al.. A robust zirconium amino acid metal-organic framework for proton conduction. Nature Communications, 2018, 9, pp.4937. ⟨10.1038/s41467-018-07414-4⟩. ⟨hal-01943439⟩
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