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Water-Driven Structural Transformation in Cobalt Trimesate Metal-Organic Frameworks

Author

Listed:
  • Jayashree Ethiraj

    (National Centre for Catalysis Research, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
    Center for Nanoscience and Technology, Chennai Institute of Technology, Kundrathur, Chennai 600 069, India)

  • Vinayagam Surya

    (National Centre for Catalysis Research, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India)

  • Parasuraman Selvam

    (National Centre for Catalysis Research, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
    School of Chemical Engineering and Analytical Science, The University of Manchester, Manchester M13 9PL, UK
    Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey GU2 7XH, UK)

  • Jenny G. Vitillo

    (Department of Science and High Technology and INSTM, University of Insubria, Via Valleggio 9, 22100 Como, Italy)

Abstract

We report on the synthesis and the characterization of a novel cobalt trimesate metal-organic framework, designated as KCL-102. Powder X-ray diffraction pattern of KCL-102 is dominated by a reflection at 10.2° (d-spacing = 8.7 Å), while diffuse reflectance UV-Vis spectroscopy indicates that the divalent cobalt centers are in two different coordination geometries: tetrahedral and octahedral. Further, the material shows low stability in humid air, and it transforms into the well-known phase of hydrous cobalt trimesate, Co 3 (BTC) 2 ·12H 2 O. We associated this transition with the conversion of the tetrahedral cobalt to octahedral cobalt.

Suggested Citation

  • Jayashree Ethiraj & Vinayagam Surya & Parasuraman Selvam & Jenny G. Vitillo, 2021. "Water-Driven Structural Transformation in Cobalt Trimesate Metal-Organic Frameworks," Energies, MDPI, vol. 14(16), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:4751-:d:608634
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