ACS Appl Mater Interfaces. 2018 May 16;10(19):16588-16595. doi: 10.1021/acsami.8b04540. Epub 2018 May 2.
The intermittent nature of renewable energy resources has led to a continuous mismatch between energy demand and supply. A possible solution to overcome this persistent problem is to design appropriate energy-storage materials. Supercapacitors based on different nanoelectrode materials have emerged as one of the promising storage devices. In this work, we investigate the supercapacitor properties of a molybdenum disulfide-reduced graphene oxide (rGO) heterostructure-based binder-free electrode, which delivered a high specific capacitance (387.6 F g at 1.2 A g) and impressive cycling stability (virtually no loss up to 1000 cycles). In addition, the possible role of rGO in the composite toward synergistically enhanced supercapacitance has been highlighted. Moreover, an attempt has been made to correlate the electrochemical impedance spectroscopy studies with the voltammetric analyses. The performance exceeds that of the reported state-of-the-art structures.
可再生能源的间歇性导致能源需求和供应之间持续不匹配。克服这一长期问题的一个可能解决方案是设计合适的储能材料。基于不同纳米电极材料的超级电容器已成为有前途的存储设备之一。在这项工作中，我们研究了基于二硫化钼还原氧化石墨烯(rGO)异质结构的无粘结剂电极的超级电容器性能，该电极具有高比电容(在 1.2 A g 时为 387.6 F g)和令人印象深刻的循环稳定性(高达 1000 次循环几乎没有损失)。此外，还强调了 rGO 在复合材料中对协同增强超级电容性能的可能作用。此外，还尝试将电化学阻抗谱研究与伏安分析相关联。该性能超过了已报道的最先进结构的性能。
