Publication detail

Post-synthetically modified metal-porphyrin framework GaTCPP for carbon dioxide adsorption and energy storage in Li-S batteries

KIRÁLY, N. CAPKOVÁ, D. ALMÁŠI, M. KAZDA, T. ČECH, O. ČUDEK, P. STRAKOVÁ FEDORKOVÁ, A. LISNICHUK, M. MEYNEN, V. ZELENKA, T.

Original Title

Post-synthetically modified metal-porphyrin framework GaTCPP for carbon dioxide adsorption and energy storage in Li-S batteries

Type

journal article in Web of Science

Language

English

Original Abstract

Lithium-sulphur batteries attract increasing interest due to their high theoretical specific capacity, advantageous economy, and “eco-friendliness”. In this study, a metal-organic framework (MOF) GaTCPP containing a porphyrinic base ligand was used as a conductive additive for sulphur. GaTCPP was synthesized, characterized, and post-synthetically modified by the transition metal ions (Co2+/Ni2+). The doping of GaTCPP ensured an increase in the carbon dioxide adsorption capacities, which were measured under different conditions. Post-synthetic modification of GaTCPP with Co2+/Ni2+ ions has been shown to increase carbon dioxide storage capacity from 22.8 wt% for unmodified material to 23.1 wt% and 26.5 wt% at 0 °C and 1 bar for Co2+ and Ni2+-doped analogues, respectively. As a conductive part of cathode material, MOFs displayed successful sulphur capture and encapsulation proven by stable charge/discharge cycle performances, high-capacity retention, and coulombic efficiency. The electrodes with pristine GaTCPP showed a discharge capacity of 699 mA h g−1 at 0.2C in the fiftieth cycle. However, the doping of GaTCPP by Ni2+ has a positive impact on the electrochemical properties, the capacity increased to 778 mA h g−1 in the fiftieth cycle at 0.2C.

Keywords

Metal-organic framework; Lithium-sulphur batteries; Sulphur cathode; Battery, Lithium

Authors

KIRÁLY, N.; CAPKOVÁ, D.; ALMÁŠI, M.; KAZDA, T.; ČECH, O.; ČUDEK, P.; STRAKOVÁ FEDORKOVÁ, A.; LISNICHUK, M.; MEYNEN, V.; ZELENKA, T.

Released

24. 8. 2022

Publisher

Royal Society of Chemistry

Location

United Kingdom

ISBN

2046-2069

Periodical

RSC Advances

Year of study

37

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

23989

Pages to

24002

Pages count

14

URL

https://pubs.rsc.org/en/content/articlelanding/2022/RA/D2RA03301A

BibTex

@article{BUT179717,
  author="Nikolas {Király} and Dominika {Capková} and Miroslav {Almáši} and Tomáš {Kazda} and Ondřej {Čech} and Pavel {Čudek} and Andrea {Straková Fedorková} and Maxim {Lisnichuk} and Vera {Meynen} and Tomáš {Zelenka}",
  title="Post-synthetically modified metal-porphyrin framework GaTCPP for carbon dioxide adsorption and energy storage in Li-S batteries",
  journal="RSC Advances",
  year="2022",
  volume="37",
  number="1",
  pages="23989--24002",
  doi="10.1039/d2ra03301a",
  issn="2046-2069",
  url="https://pubs.rsc.org/en/content/articlelanding/2022/RA/D2RA03301A"
}