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    Versatile N-Doped MXene Ink for Printed Electrochemical Energy Storage Application

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    Type
    Article
    Authors
    Yu, Lianghao
    Fan, Zhaodi
    Shao, Yuanlong
    Tian, Zhengnan
    Sun, Jingyu cc
    Liu, Zhongfan
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2019-07-30
    Embargo End Date
    2020-01-01
    Permanent link to this record
    http://hdl.handle.net/10754/656761
    
    Metadata
    Show full item record
    Abstract
    Printing is regarded as a revolutionary and feasible technique to guide the fabrication of versatile functional systems with designed architectures. 2D MXenes are nowadays attractive in printed energy storage devices. However, owing to the van der Waals interaction between the MXene layers, the restacking issues within the printed electrodes can significantly impede the ion/electrolyte transport and hence handicap the electrochemical performances. Herein, a melamine formaldehyde templating method is demonstrated to develop crumpled nitrogen-doped MXene (MXene-N) nanosheets. The nitrogen doping boosts the electrochemical performances of MXene via enhanced conductivity and redox activity. Accordingly, two types of MXene-N inks are prepared throughout the optimization of the ink viscosity to fit the 2D screen printing and 3D extrusion printing, respectively. As a result, the screen printed MXene-N microsupercapacitor delivers an areal capacitance of 70.1 mF cm−2 and outstanding mechanical robustness. Furthermore, the 3D-printed MXene-N based supercapacitor manifests an areal capacitance of 8.2 F cm−2 for a three-layered electrode and readily stores a high areal energy density of 0.42 mWh cm−2. The approach to harnessing such versatile MXene-N inks offers distinctive insights into the printed energy storage systems with high areal energy density and large scalability.
    Citation
    Yu, L., Fan, Z., Shao, Y., Tian, Z., Sun, J., & Liu, Z. (2019). Versatile N-Doped MXene Ink for Printed Electrochemical Energy Storage Application. Advanced Energy Materials, 9(34), 1901839. doi:10.1002/aenm.201901839
    Sponsors
    L.H.Y. and Z.D.F. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (51702225), National Key Research and Development Program (2016YFA0200103), and Jiangsu Youth Science Foundation (BK20170336). The authors acknowledge the support from Suzhou Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Suzhou, China.
    Publisher
    Wiley
    Journal
    Advanced Energy Materials
    DOI
    10.1002/aenm.201901839
    Additional Links
    https://onlinelibrary.wiley.com/doi/abs/10.1002/aenm.201901839
    ae974a485f413a2113503eed53cd6c53
    10.1002/aenm.201901839
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division

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