Contact
    Start Publications Additional-Heating-Enhanced Large-Scale Metallic Molybdenum ...
    ←  Publication Finder
    Attension

    Additional-Heating-Enhanced Large-Scale Metallic Molybdenum Disulfide Nanosheet Exfoliation for Free-Standing Films and Flexible High-Performance Supercapacitors

    Year: 2020

    Journal: ChemNanoMat, Volume 6, FEB

    Authors: Li, Jiahui; Yang, Xinyu; Shi, Qiuwei; Gao, Peng; Hou, Chengyi; Zhang, Qinghong; Li, Yaogang; Wang, Hongzhi

    Organizations: Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [2232019G-02, 2232019A3-02]; DHU Distinguished Young Professor Program [LZB2019002]; Manned Spaceflight Advanced Research Funds [17620504]; Young Elite Scientists Sponsorship Program by CAST [2017QNRC001]; Donghua University Doctoral Innovation Fund Program [17D310606, 106-06-0019058]

    Keywords: 1T-MoS2; film; flexible; supercapacitor

    Octahedral metal phase molybdenum disulfide (1T-MoS2) shows excellent capacitive behaviour by storing charge via double layers over individual two-dimensional (2D) layers and through Faradaic reactions on the Mo centre because of its multiple oxidation states. In this study, we fabricate a free-standing film based on large-scale 1T-MoS2 nanosheets and use it as an electrode for a flexible supercapacitor without any additives. The resulting free-standing electrodes have a layered structure, hydrophilicity and high electrical conductivity, which are beneficial for electrolyte accessibility and fast ions transport. The specific volumetric capacitance of this pure 1T-MoS2-based electrode is up to 407.1 F . cm(-3) (the corresponding mass and area capacitance were 26.1 F . g(-1) and 184.8 mF . cm(-2), respectively). The all-solid-state 1T-MoS2 based supercapacitor shows extended stability (92.8% retention after 12, 000 cycles), high flexibility (only 12% drop after bending 180 degrees for 100 cycles) and bending cycling stability (86.2% retention after in-situ bending 1500 times).
    View publication