Hydrothermal synthesis of Polypyrrole/MoS2 intercalation composites for supercapacitor electrodes |
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| Affiliation: | 1. Department of Machine Intelligence and Systems Engineering Faculty of Systems Engineering, Akita Prefectural University, Akita, 015-0055, Japan;2. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, PR China;1. State Key Laboratory for Oxo Synthesis and Selectve Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China;2. University of Chinese Academy of Sciences, Beijing 100039, PR China;1. School of Science, Tianjin University, Tianjin 300072, PR China;2. Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, PR China;1. School of Chemical Engineering, Hefei University of Technology, Hefei 23009, China;2. Department of Chemical and Materials Engineering, Hefei University, Hefei 230022, China;3. Department of Electronics and Electrical Engineering, University of Glasgow, G12 8QQ, UK;1. Nanomaterials and System Lab, Department of Mechanical Engineering, Jeju National University, Jeju 690-756, South Korea;2. Department of Mechatronics Engineering, Jeju National University, Jeju 690-756, South Korea |
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| Abstract: | As a pseudocapacitive electrode materials for supercapacitor, Polypyrrole (PPy) exhibit excellent theoretical specific capacitance. However, it suffers from a poor cycling stability due to structural instability during charge-discharge process. In this work, a novel and facile hydrothermal method has been developed for the intercalation composites of PPy/MoS2 with multilayer three-dimensional structure. The report result shows that the as-prepared electrode possess a outstanding electrochemical properties with significantly specific capacitance of 895.6 F g−1 at current density of 1 A g−1, higher energy density (3.774 Wh kg−1) at power density of 252.8 kW kg−1, furthermore, it also achieve remarkable cycling stability (~98% capacitance retention after 10,000 cycles) which is attributed to the synergistic effect of PPy and MoS2. This synthetic strategy integrates performance enables the multilayer PPy/MoS2 composites to be a promising electrode for energy storage applications. |
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| Keywords: | PPy Cycling stability Intercalation Supercapacitor |
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