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    Publication Date: 2018-07-05
    Description: Publication date: 1 September 2018 Source: Electrochimica Acta, Volume 283 Author(s): Muhammad Imtiaz, Zhixin Chen, Chengling Zhu, Hui Pan, Imran Zada, Yao Li, Syeda Wishal Bokhari, RuiYing Luan, Salma Nigar, Shenmin Zhu Sugarcane bagasse, a waste product of the sugarcane industry can be used as a precursor for the preparation of carbon. In this study, a composite consisting of hierarchically functionalized porous carbon (FPC) and β-FeOOH was synthesized via a simple and effective hydrolysis method. The hydrothermal process before the carbonization and activation of the bagasse maintained the hierarchical interconnected porous structure of the sugarcane bagasse. A nitric acid (HNO 3 ) functionalization treatment enabled an in-situ growth of β-FeOOH on the hierarchically structured bagasse. When tested as an anode for lithium-ion batteries, the obtained FPC/β-FeOOH composite showed a high discharge capacity of 898.8 mAh g −1 at 0.2 A g −1 after 350 cycles and achieved a specific capacity of 446.1 mAh g −1 at a current rate of 1 A g −1 after 1000 cycles together with a remarkable coulombic efficiency of 99.9%. This excellent electrochemical performance of the FPC/β-FeOOH composite can be attributed to the synergistic effect of the interconnected porous structure of porous carbon and the electrochemically active tunnel type β-FeOOH nanorods. The strategy developed here is promising in design and fabrication of other composites having interconnected porous structures with high performance. Graphical abstract
    Print ISSN: 0013-4686
    Electronic ISSN: 1873-3859
    Topics: Chemistry and Pharmacology , Physics
    Published by Elsevier
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