Chalcocarbogels as High-Capacity and Cycle-Stable Electrode Materials for Lithium and Sodium Ion Batteries

Taohedul Islam, Mengya Li, Alicia Blanton, Kathryn A. Pitton, Keerthan R. Rao, Sahar Bayat, Kamila M. Wiaderek, Misganaw Adigo Weret, Subrata C. Roy, Renfei Feng, Dien Li, Robiul Alam, Jing Nie, Oluwaseun Oketola, Avijit Pramanik, Beth S. Guiton, Chad Risko, Ilias Belharouak, Ruhul Amin, Saiful M. Islam

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The low capacities of commercial Li ion batteries and cycle instabilities of amorphous metal sulfide based batteries impose constraints on their utilization for large-scale energy storage. We report here the acid-free, room-temperature (RT), and solution-based synthesis of a chalcogenide-carbonaceous hybrid aerogel, termed as “chalcocarbogel”, comprising molybdenum sulfide (MoSx) and graphene oxide (GO). The chalcocarbogel is a nanoparticle-aggregated, porous, amorphous gel consisting of Mo3S13 and Mo2S12-like structures as determined by synchrotron X-ray PDF, XANES, and EXAFS. The MoSx-GO chalcocarbogel demonstrates high specific capacities of ∼1215 and ∼807 mAh g-1 for Li/MoSx-GO and Na/MoSx-GO cells, respectively, for a 50 mAg-1 discharge rate during the first cycle. After the activation cycles, the MoSx-GO chalcocarbogel stabilizes, maintaining high specific capacities of approximately ∼700 mAh g-1 for Li/MoSx-GO and ∼473 mAh g-1 for Na/MoSx-GO cells, while continuously cycling. The MoSx-GO aerogel reported here serves as a promising platform to develop chalcocarbogels for applications spanning both Li and Na ion batteries.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalACS Energy Letters
Volume9
Issue number1
DOIs
StatePublished - Jan 12 2024

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Materials Chemistry

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