• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    FeSe2 nanoparticle embedded in 3D honeycomb-like N-doped carbon architectures coupled with electrolytes engineering boost superior potassium ion storage

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    EA_EA--2020--IF 6.215.pdf
    Size:
    1.519Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Download
    Type
    Article
    Authors
    Min, Hao
    Li, Minghua
    Shu, Hongbo
    Zhang, Xiaoqing
    Hu, Ting
    Wang, Wenxi
    Zhou, Yujin
    Jian, Jian
    Wang, Xianyou cc
    KAUST Department
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2020-10-30
    Online Publication Date
    2020-10-30
    Print Publication Date
    2021-01
    Embargo End Date
    2022-11-11
    Submitted Date
    2020-08-18
    Permanent link to this record
    http://hdl.handle.net/10754/666073
    
    Metadata
    Show full item record
    Abstract
    Potassium ion batteries (KIB) have been considered as helpful alternative energy storage devices owing to the low-cost and abundant potassium sources. However, it is a critical challenge to explore suitable anode materials and electrolytes for adapting large radius and high activity of K ions. In this study, a novel FeSe2 nanoparticle embedded in 3D honeycomb-like N-doped carbon architectures (FeSe2-NC) is synthesized through a simple solid-state strategy. Such unique architecture structure can not only provide a high-way for electron and K+ transport, but also effectively alleviate volume variation during long-term K+ intercalation/deintercalation process. Hence, FeSe2-NC as anode materials for KIB display a high discharge capacity of 460 mAh g−1 at 100 mA g−1 and excellent long-term cycling stability even at a high current density of 2 A g−1. Beyond the electrochemical performance, it is found that storage K+ of FeSe2-NC represents a conversion mechanism during discharge/charge in KIB. Furthermore, regulating the electrolyte salts via replacing potassium bis(fluorosulfonyl)imide (KFSI) electrolyte with potassium hexafluorophosphate (KPF6) electrolyte can form a more uniform and robust solid electrolyte interphase film, which be responsible for the enhanced electrochemical performance. Therefore, it is helpful to understand the fundamentals of FeSe2-NC and promote the practical application of KIB.
    Citation
    Min, H., Li, M., Shu, H., Zhang, X., Hu, T., Wang, W., … Wang, X. (2021). FeSe2 nanoparticle embedded in 3D honeycomb-like N-doped carbon architectures coupled with electrolytes engineering boost superior potassium ion storage. Electrochimica Acta, 366, 137381. doi:10.1016/j.electacta.2020.137381
    Sponsors
    This work is support financially by the National Natural Science Foundation of China (Nos. 51502256, 51602101), Hunan Provincial Natural Scientific Foundation of China (Nos. 2017JJ3297, 2018JJ3144), Scientific Research Projects of Hunan Provincial Strategic Emerging Industries (No. 2016GK4030), China Postdoctoral Science Foundation (No. 2014M552142), Hunan Provincial Education Office Foundation of China (Nos. 17C1523, 19A261) and Scientific Research Fund of Xiangtan University (Nos. 2018HJYH08; 2015SEP03; 13QDZ30; 2014XZX07; 2018ZKKF03).
    Publisher
    Elsevier BV
    Journal
    Electrochimica Acta
    DOI
    10.1016/j.electacta.2020.137381
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0013468620317746
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.electacta.2020.137381
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

    entitlement

     
    DSpace software copyright © 2002-2023  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.