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Adv Mater. 2015 Feb;27(6):1117-23. doi: 10.1002/adma.201404622. Epub 2014 Dec 22.

Growth of polypyrrole ultrathin films on MoS₂ monolayers as high-performance supercapacitor electrodes.

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State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, No. 1 Beiertiao, Zhongguancun, Beijing, 100190, P. R. China; CAS Key Laboratory of Nanosystem and Hierarchy Fabrication, National Center for Nanoscience and Technology, No. 11 Beiyitiao, Zhongguancun, Beijing, 100190, P. R. China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, P. R. China.


A scalable solution-based approach is developed to controllably grow PPy ultrathin films on 2D MoS2 monolayers. When these sandwiched nanocomposites are utilized as supercapacitor electrodes, a record high specific capacitance, remarkable rate capability, and improved cycling stability are achieved, offering a feasible solution to create the next generation of energy-storage device with superior power density and energy density.


molybdenum disulfide; monolayer; polypyrrole; supercapacitor; ultrathin film


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