二氨基芘修饰的还原氧化石墨烯作为一种用于高性能超级电容器的新型电极材料。
Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors.
作者信息
Kang Hongwei, Zhang Chengpeng, Xu Yonggui, Zhang Weiyang, Jiao Jianhua, Li Zhikun, Zhu LeiLei, Liu Xiaoqian
机构信息
Henan Key Laboratory of Nanocomposite and Application, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College Zhengzhou 450006 China
Henan Science and Technology Exchange Center with Foreign Countries China.
出版信息
RSC Adv. 2020 Jan 8;10(3):1507-1513. doi: 10.1039/c9ra10429a. eCollection 2020 Jan 7.
In this paper, novel reduced graphene oxide (rGO) composites (DAPrGOs) modified by diaminopyrene (DAP) were successfully synthesized a facile solvothermal reaction method and used for supercapacitors. Compared with the pristine rGO, the DAPrGO1 electrode showed distinctly better performance (397.63 F g 80.29 F g of pristine rGO at 0.5 A g) with small charge transfer resistance. When a symmetric device was fabricated using DAPrGO1 as the active material, it also exhibited a high capacitance of 82.70 F g at 0.5 A g with an energy density of 25.84 W h kg at a power density of 375 W kg, and even offered a high power density of 7500 W kg (18.71 W h kg) at 10 A g. Moreover, the device possessed good electrochemical stability up to 20 000 cycles, implying promising applications in energy storage fields.
在本文中，通过简便的溶剂热反应法成功合成了由二氨基芘（DAP）修饰的新型还原氧化石墨烯（rGO）复合材料（DAPrGOs），并将其用于超级电容器。与原始rGO相比，DAPrGO1电极表现出明显更好的性能（在0.5 A g时为397.63 F g，原始rGO为80.29 F g），且电荷转移电阻较小。当使用DAPrGO1作为活性材料制备对称器件时，在0.5 A g时它还表现出82.70 F g的高电容，在功率密度为375 W kg时能量密度为25.84 W h kg，甚至在10 A g时提供7500 W kg（18.71 W h kg）的高功率密度。此外，该器件在高达20000次循环时具有良好的电化学稳定性，这意味着在储能领域具有广阔的应用前景。
Zotero 插件