层状MoC MXene/MoS/石墨烯纳米复合材料电荷存储性能的改善
Improved charge storage performance of a layered MoC MXene/MoS/graphene nanocomposite.
作者信息
El Ghazaly Ahmed, Méndez-Romero Ulises A, Halim Joseph, Nestor Tseng Eric, O Å Person Per, Ahmed Bilal, Wang Ergang, Rosen Johanna
机构信息
Materials Design Division, Department of Physics, Chemistry and Biology (IFM), Linköping University 581 83 Linköping Sweden johanna,
Department of Chemistry and Chemical Engineering, Chalmers University of Technology Goteborg SE-412 96 Sweden.
出版信息
Nanoscale Adv. 2021 Oct 1;3(23):6689-6695. doi: 10.1039/d1na00642h. eCollection 2021 Nov 24.
The construction of nanocomposite electrodes based on 2D materials is an efficient route for property enrichment and for exploitation of constituent 2D materials. Herein, a flexible MoC -MXene/MoS/graphene (MOMG) composite electrode is constructed, utilizing an environment-friendly method for high-quality graphene and MoS synthesis. The presence of graphene and MoS between MXene sheets limits the commonly observed restacking, increases the interlayer spacing, and facilitates the ionic and electronic conduction. The as-prepared MOMG electrode delivers a volumetric capacitance of 1600 F cm (450 F g) at the scan rate of 2 mV s and retains 96% of the initial capacitance after 15 000 charge/discharge cycles (10 A g). The current work demonstrates that the construction of nanocomposite electrodes is a promising route towards property enhancement for energy storage applications.
基于二维材料构建纳米复合电极是实现性能增强和开发二维材料成分的有效途径。在此，通过一种环境友好的方法合成高质量石墨烯和二硫化钼，构建了一种柔性碳化钼-碳化钛铝 MAX 相/二硫化钼/石墨烯（MOMG）复合电极。二维碳化钛铝 MAX 相薄片之间存在的石墨烯和二硫化钼限制了常见的堆叠现象，增加了层间距，并促进了离子和电子传导。制备的 MOMG 电极在扫描速率为 2 mV s 时的体积电容为 1600 F cm（450 F g），在 15000 次充放电循环（10 A g）后保留了初始电容的 96%。当前工作表明，构建纳米复合电极是储能应用中实现性能增强的一条有前景的途径。
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