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One-pot synthesis of g-C3N4/MnO2 and g-C3N4/SnO2 hybrid nanocomposites for supercapacitor applications
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2018-07-27 00:00:00 , DOI: 10.1039/c8se00279g Jithesh Kavil 1, 2, 3 , P. M. Anjana 4, 5, 6, 7 , Pradeepan Periyat 1, 2, 3 , R. B. Rakhi 4, 5, 6, 7
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2018-07-27 00:00:00 , DOI: 10.1039/c8se00279g Jithesh Kavil 1, 2, 3 , P. M. Anjana 4, 5, 6, 7 , Pradeepan Periyat 1, 2, 3 , R. B. Rakhi 4, 5, 6, 7
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Carbon materials with layered structures with their unique surface area and charge transport properties have been attracting significant attention as electrode materials in renewable energy storage devices. The rapid agglomeration of layered materials during electrochemical processes reduces their shelf life and specific capacitance, which can be prevented by the introduction of suitable spacers between the layers. Herein, we report the electrochemical performance of MnO2 and SnO2 metal oxide spacers incorporated layered graphitic carbon nitride g-C3N4 in a symmetric two electrode configuration. The as-prepared g-C3N4/MnO2 and g-C3N4/SnO2 hybrid nanocomposites act as efficient electrode materials for symmetric supercapacitors. The performance of the electrode materials is compared with that of bare g-C3N4. A remarkable increase in specific capacitance was obtained for the g-C3N4/MnO2 composite electrode (174 F g−1) when compared to the bare g-C3N4 electrode (50 F g−1) and g-C3N4/SnO2 electrode (64 F g−1). At a constant power density of 1 kW kg−1 the symmetric supercapacitors based on g-C3N4, g-C3N4/SnO2, and g-C3N4/MnO2 electrodes exhibited energy densities of 6.9, 8.8 and 24.1 W h kg−1 respectively.
中文翻译：
一锅法合成用于超级电容器的gC 3 N 4 / MnO 2和gC 3 N 4 / SnO 2杂化纳米复合材料
具有可比表面积和电荷传输特性的层状结构的碳材料作为可再生能源存储设备中的电极材料受到了广泛的关注。在电化学过程中，层状材料的快速团聚会降低其货架寿命和比电容，这可以通过在层之间引入合适的垫片来防止。在这里，我们报告了对称的两个电极配置中包含层状石墨碳氮化物gC 3 N 4的MnO 2和SnO 2金属氧化物间隔物的电化学性能。制备的gC 3 N 4 / MnO 2和gC 3N 4 / SnO 2杂化纳米复合材料可作为对称超级电容器的有效电极材料。将电极材料的性能与裸gC 3 N 4的性能进行比较。与裸露的gC 3 N 4电极（50 F g -1）和gC 3 N 4 / SnO相比，gC 3 N 4 / MnO 2复合电极（174 F g -1）的比电容显着增加。2个电极（64 F g -1）。在1 kW的恒定功率密度下kg -1基于gC 3 N 4，gC 3 N 4 / SnO 2和gC 3 N 4 / MnO 2电极的对称超级电容器的能量密度分别为6.9、8.8和24.1 W h kg -1。
更新日期：2018-07-27
中文翻译：
一锅法合成用于超级电容器的gC 3 N 4 / MnO 2和gC 3 N 4 / SnO 2杂化纳米复合材料
具有可比表面积和电荷传输特性的层状结构的碳材料作为可再生能源存储设备中的电极材料受到了广泛的关注。在电化学过程中，层状材料的快速团聚会降低其货架寿命和比电容，这可以通过在层之间引入合适的垫片来防止。在这里，我们报告了对称的两个电极配置中包含层状石墨碳氮化物gC 3 N 4的MnO 2和SnO 2金属氧化物间隔物的电化学性能。制备的gC 3 N 4 / MnO 2和gC 3N 4 / SnO 2杂化纳米复合材料可作为对称超级电容器的有效电极材料。将电极材料的性能与裸gC 3 N 4的性能进行比较。与裸露的gC 3 N 4电极（50 F g -1）和gC 3 N 4 / SnO相比，gC 3 N 4 / MnO 2复合电极（174 F g -1）的比电容显着增加。2个电极（64 F g -1）。在1 kW的恒定功率密度下kg -1基于gC 3 N 4，gC 3 N 4 / SnO 2和gC 3 N 4 / MnO 2电极的对称超级电容器的能量密度分别为6.9、8.8和24.1 W h kg -1。
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