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

Sujing Wang, Mohammad Wahiduzzaman, Louisa Davis, Antoine Tissot, William Shepard, Jérôme Marrot, Charlotte Martineau-Corcos, Djemel Hamdane, Guillaume Maurin, Sabine Devautour-Vinot () and Christian Serre ()
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Sujing Wang: PSL Research Université
Mohammad Wahiduzzaman: Université Montpellier, Place Eugène Bataillon
Louisa Davis: Université Montpellier, Place Eugène Bataillon
Antoine Tissot: PSL Research Université
William Shepard: Synchrotron SOLEIL-UR1, L’Orme des Merisiers, Saint-Aubin, BP 48
Jérôme Marrot: Université Paris-Saclay
Charlotte Martineau-Corcos: Université Paris-Saclay
Djemel Hamdane: Collège de France
Guillaume Maurin: Université Montpellier, Place Eugène Bataillon
Sabine Devautour-Vinot: Université Montpellier, Place Eugène Bataillon
Christian Serre: PSL Research Université

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract 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.

Date: 2018
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DOI: 10.1038/s41467-018-07414-4

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