Sodium-ion storage performances of MoS2 nanocrystals coated with N-doped carbon synthesized by flame spray pyrolysis

Ju Hyeong Kim, Jin Koo Kim, Yun Chan Kang

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    Transition metal dichalcogenides (TMDCs) are receiving significant research interest as anode materials for sodium-ion batteries (SIBs). In light of this, vigorous efforts have been devoted to the nano-manufacturing of TMDC-based materials, as they promote better electrochemical performances. Simultaneously, effective production strategies of TMDC-based nanomaterials have been widely explored. Here, we report the facile synthesis of MoS2 nanoparticles coated with N-doped carbon shells (MoS2@NC) for SIB anodes. Flame-spray pyrolysis was employed to produce MoO3 nanoparticles, which were then transformed into MoS2 nanoparticles by a sulfidation process and coated with N-doped carbon shells by dopamine polymerization and carbonization. Benefiting from enhanced structural robustness and electrical conductivity as a result of the uniform N-doped carbon coating, the resulting MoS2@NC exhibits superior sodium-ion storage performance compared with that of bare MoS2 nanoparticles. The proposed strategy is expected to provide new methodologies for the facile synthesis of various metal-chalcogenide/carbon composite nanoparticles for energy storage applications.

    Original languageEnglish
    Article number146470
    JournalApplied Surface Science
    Volume523
    DOIs
    Publication statusPublished - 2020 Sept 1

    Bibliographical note

    Publisher Copyright:
    © 2020 Elsevier B.V.

    Keywords

    • Energy storage materials
    • Flame spray pyrolysis
    • N-doped carbon
    • Sodium-ion batteries
    • Transition metal dichalcogenides

    ASJC Scopus subject areas

    • General Chemistry
    • Condensed Matter Physics
    • General Physics and Astronomy
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films

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