g-C3N4 anchored with MoS2 ultrathin nanosheets as high performance anode material for supercapacitor
g-C3N4 anchored with MoS2 ultrathin nanosheets as high performance anode material for supercapacitor
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DOI：
10.1016/j.matlet.2019.01.041
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发表时间：
2019-04
影响因子：
3
通讯作者：
Jing Xu;Zefeng Huang;Haocheng Ji;H. Tang;G. Tang;Haobing Jiang
中科院分区：
文献类型：
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作者：
Jing Xu;Zefeng Huang;Haocheng Ji;H. Tang;G. Tang;Haobing Jiang
采用一步水热法成功制备了具有高电容性能的g-C3 N4/MoS 2花状异质结。通过循环伏安法和恒流充放电测试对所制备的g-C3 N4/MoS 2异质结的电化学性能进行了评价，结果表明，优化的g-C3 N4/MoS 2具有优异的电化学性能，在1 A g-1电流密度下的比电容为532.7 F g-1，循环稳定性为88.6%，1000次循环后，1 A g− 1下的电容保持率。g-C3 N4与花状MoS 2的结合，提供了良好的电荷转移场和电解质扩散通道，同时有效地防止了充放电过程中的腐蚀和聚集，提高了材料的电化学性能。更重要的是，我们的工作为设计高性能的电极异质结和扩展g-C3 N4/MoS 2的实际应用提供了新的见解。
Novel flower-like g-C3N4/MoS2heterojunction with high supercapacitor performance has been successfully synthesized by a facile one-step hydrothermal process. The electrochemical properties of the as-prepared g-C3N4/MoS2heterojunction are evaluated by cyclic voltammetry and galvanostatic charge/discharge tests, which indicate the optimal g-C3N4/MoS2exhibits remarkable electrochemical performance with a high specific capacitance of 532.7 F g−1at a current density of 1 A g−1and excellent cycling stability with 88.6% of capacitance retention at 1 A g−1after 1000 cycles. The enhanced electrochemical performance can be ascribed to the combination of g-C3N4and flower-like MoS2, which provides excellent charge transfer field and electrolyte diffusion channels while effectively prevents the corruption and aggregation during charging and discharging process. More importantly, our work provides a fresh insight into designing high-performance electrode heterojunction and extending the actual application of g-C3N4/MoS2.