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Electric, dielectric and electrochemical measurements of Co:Mn-BTC bimetallic MOFs

ORAL

Abstract

Bimetallic metal-organic frameworks (MOFs) with two different metal ions in the inorganic nodes, show a synergistic effect and enhanced properties compared to their monometallic counterparts and have shown potential for applications in catalysis and electrochemical energy storage and conversion. In this work, we study the a.c. conductivity, dielectric properties, and electrochemical properties of Co and Mn-based MOFs. The AC conductivity and dielectric measurements are used to study the nature of charge transport in the system. We find that the conduction mechanism is frequency and concentration dependent, with the low-frequency contribution being dominated by a hopping mechanism and lattice response dominating at higher frequencies. We study the electrochemical responses and find a promising low overpotential of about 350 mV for Oxygen evolution reaction, within the system.

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Presenters

  • Manjeet Godara

    Indian Institute of Technology Delhi (I

Authors

  • Manjeet Godara

    Indian Institute of Technology Delhi (I

  • Silvia Chowdhury

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Nagy L Torad

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Ahmed A El-Amir

    Refractory & Ceramic Materials Division (RCMD), Central Metallurgical R&D Institute (CMRDI), P.O. Box 87 Helwan, 11421, Cairo, Egypt

  • Aditya Ashok

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Ping Cheng

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Ruijing Xin

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Motasim Billah

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Watcharop Chaikittisilp

    JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1

  • Yusuke Yamauchi

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Yusuf V Kaneti1

    Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD 4072, Australia

  • Nirat Ray

    Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India