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A Flexible Metal-Organic Framework with High Density of Sulfonic Acid Sites for Proton Conduction

Published

Author(s)

Fan Yang, Gang Xu, Yibo Dou, Bin Wang, Heng Zhang, Hui Wu, Wei Zhou, Jian-Rong Li, Banglin Chen

Abstract

The design of stable electrolyte materials of high proton conductivity for fuel cell is still a great challenge to date. Herein we report a chemically stable and structurally flexible MOF, BUT-8(Cr)a, with high-density of -SO3H sites on its pore surfaces for the proton conduction. The flexible nature together with its high density of -SO3H sites has enabled BUT-8(Cr)a to self-adapt its framework under different humid environments to ensure smooth proton conduction pathways mediated by the water molecules, BUT-8(Cr)a thus has not only the highest proton conductivity of 1.27 x 10-1S cm^u-1 at 100% RH and 80 °C among the MOF materials but also maintains the moderately high proton conductivity at wide ranges of relative humidity (RH) and temperature.
Citation
Nature Energy
Volume
2

Keywords

Metal-Organic Framework, Proton Conductivition

Citation

Yang, F. , Xu, G. , Dou, Y. , Wang, B. , Zhang, H. , Wu, H. , Zhou, W. , Li, J. and Chen, B. (2017), A Flexible Metal-Organic Framework with High Density of Sulfonic Acid Sites for Proton Conduction, Nature Energy, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=923789 (Accessed April 22, 2024)
Created November 9, 2017, Updated October 12, 2021