Microalgae-derived hollow carbon-MoS2 composite as anode for lithium-ion batteries

Jeong Cheol Seo, Nurzhan Umirov, Seung Bin Park, Kyubock Lee, Sung Soo Kim

    Research output: Contribution to journalArticle

    Abstract

    We developed a novel composite structure of MoS2 and naturally derived carbon as anode materials for lithium-ion batteries by using microalgae as both source materials and templates for nitrogen-doped hollow carbon with three dimensional internal structures. The microalgae-derived carbon performed the roles as conducting matrix and template for vertically stacked MoS2 nanosheets. The electrochemical performance of microalgae-derived carbon-MoS2 composite materials evaluated in half-cell system against lithium metal electrode secured capacity of 300 mA h/g after 880 cycles at current density of 5 A/g. We ascribe the excellent cycle performance to the unique structure of hollow spherical microalgae-derived carbon with rich inner structures and naturally doped nitrogen, which consequentially facilitate fast lithium ion transport. This kind of structuring strategy is advantageous in terms of utilizing naturally created structures of microbes with complexed inner organelles and trace of heteroatoms, not to mention in respect of producing value added material from biomass residues.

    Original languageEnglish
    JournalJournal of Industrial and Engineering Chemistry
    DOIs
    Publication statusAccepted/In press - Jan 1 2019

    Fingerprint

    Anodes
    Carbon
    Composite materials
    Lithium
    Nitrogen
    Nanosheets
    Composite structures
    Biomass
    Current density
    Metals
    Lithium-ion batteries
    Ions
    Electrodes

    Keywords

    • Anode
    • Carbonization
    • Li-ion battery
    • Microalgae
    • Molybdenum sulfide

    ASJC Scopus subject areas

    • Chemical Engineering(all)

    Cite this

    Microalgae-derived hollow carbon-MoS2 composite as anode for lithium-ion batteries. / Seo, Jeong Cheol; Umirov, Nurzhan; Park, Seung Bin; Lee, Kyubock; Kim, Sung Soo.

    In: Journal of Industrial and Engineering Chemistry, 01.01.2019.

    Research output: Contribution to journalArticle

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    abstract = "We developed a novel composite structure of MoS2 and naturally derived carbon as anode materials for lithium-ion batteries by using microalgae as both source materials and templates for nitrogen-doped hollow carbon with three dimensional internal structures. The microalgae-derived carbon performed the roles as conducting matrix and template for vertically stacked MoS2 nanosheets. The electrochemical performance of microalgae-derived carbon-MoS2 composite materials evaluated in half-cell system against lithium metal electrode secured capacity of 300 mA h/g after 880 cycles at current density of 5 A/g. We ascribe the excellent cycle performance to the unique structure of hollow spherical microalgae-derived carbon with rich inner structures and naturally doped nitrogen, which consequentially facilitate fast lithium ion transport. This kind of structuring strategy is advantageous in terms of utilizing naturally created structures of microbes with complexed inner organelles and trace of heteroatoms, not to mention in respect of producing value added material from biomass residues.",
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    AU - Lee, Kyubock

    AU - Kim, Sung Soo

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