Microwave-assisted synthesis of platelet-like cobalt metal-organic framework, its transformation to porous layered cobalt-carbon nanocomposite discs and their utilization as anode materials in sodium-ion batteries

Skoda, David;Kazda, Tomas;Munster, Lukas;Hanulikova, Barbora;Kuritka, Ivo;et.al.
(2020) Journal of Energy Storage — Vol. 27, p. 101113 (2020)

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Authors
  • Skoda, David
    Author
  • Kazda, Tomas
    Author
  • Munster, Lukas
    Author
  • Hanulikova, Barbora
    Author
  • Styskalik, AlesUCLouvain
    Author
  • Eloy, PierreUCLouvain
    Author
  • Debecker, Damienorcid-logoUCLouvain
    Author
  • Kuritka, Ivo
    Author
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Abstract
In this work a facile microwave-assisted synthesis of a platelet-like cobalt-based metal-organic framework (MOF) material is presented. This material was synthesized from cobalt(II) acetylacetonate and biphenyl-4,4′-dicarboxylic acid (Bpdc) in N,N’-dimethylformamide at 160°C. As-prepared Co-Bpdc MOF product with a platelet-like disc architecture was transformed by heat treatment in a nitrogen atmosphere at 800°C to porous cobalt-carbon nanocomposite discs. It is demonstrated that this synthetic strategy allows for obtaining magnetic microporous carbon layered discs with homogeneously incorporated metallic cobalt nanoparticles with a size of ca. 4 nm. The Co-C nanocomposite material was characterized by a variety of physico-chemical methods. It is shown that both Co-Bpdc MOF and Co-C nanocomposite were electrochemically active in sodium battery system as a material for the negative electrode. The high capacity retention over 80% and capacities over 200 mAh g–1 in the sodium-ion battery systems have been achieved.
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Skoda, D., Kazda, T., Munster, L., Hanulikova, B., Styskalik, A., Eloy, P., Debecker, D., Vilcakova, J., Cech, O., Simonikova, L., Kanicky, V., & Kuritka, I. (2020). Microwave-assisted synthesis of platelet-like cobalt metal-organic framework, its transformation to porous layered cobalt-carbon nanocomposite discs and their utilization as anode materials in sodium-ion batteries. Journal of Energy Storage, 27, 101113. https://doi.org/10.1016/j.est.2019.101113 (Original work published 2020)