In situ synthesis of CoS_x@carbon core-shell nanospheres decorated in carbon nanofibers for capacitor electrodes with superior rate and cycling performances

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• 作者：Ying Liu ; Jinyuan Zhou ; Wenbin Fu ; Peng Zhang ; Xiaojun Pan ; ^{xjpan@lzu.edu.cn} ; Erqing Xie ; ^{xieeq@lzu.edu.cn}
• 刊名：Carbon
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：187-197
• 全文大小：3528 K
• 卷排序：114

文摘

The resultant CoSx/C hybrid electrodes exhibit a superior rate capability of 66.1% when the current density increased to 100 A g−1, and good cycling stability with over 89.0% specific capacitance remained after 2000 cycles. The onion-like carbon layer covering the hollow CoSx NPs increases the conductivity of the CoSx/C hybrid electrode. The 1D PCNFs confined the conversion reaction of TMSs particles to prevent them from aggregating. The hollow structured of TMSs NPs provide more space to accommodate volume changes during charge/discharge cycles.