期刊
ELECTROCHIMICA ACTA
卷 235, 期 -, 页码 348-355出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2017.03.069
关键词
molybdenum disulfide; PEDOT:PSS; free-standing film; supercapacitors; conjugated polymer
资金
- Australian Research Council Centre of Excellence Scheme [CE 140100012]
- ARC under the Australian Laureate Fellowship scheme [FL110100196]
Two-dimensional molybdenum disulfide (MoS2) is a promising energy storage material due to its high surface area and unique electronic structure. Free-standing flexible MoS2-based electrode is of importance for use in flexible energy storage devices, whereas there are limited reports available. In this work we developed a robust hybrid film, MoS2 incorporated with highly conductive poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate). This free-standing film possesses excellent mechanical properties with a fracture strength of 18.0 MPa and a Young's modulus of 2.0 GPa. It can deliver a large volumetric capacitance of 141.4 F cm (3), a high volumetric energy density of 4.9 mWh cm (3), and a capacitance retention rate of 98.6% after 5000 charge/discharge cycles. This film has demonstrated its application in an all-solid-state bendable supercapacitor as well. (C) 2017 Elsevier Ltd. All rights reserved.
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