当前位置: X-MOL 学术J. Mater. Sci. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Reduced graphene oxide supersonically sprayed on wearable fabric and decorated with iron oxide for supercapacitor applications
Journal of Materials Science & Technology ( IF 11.2 ) Pub Date : 2021-01-16 , DOI: 10.1016/j.jmst.2020.11.066
Ali Aldalbahi , Edmund Samuel , Bander S. Alotaibi , Hany El-Hamshary , Sam S. Yoon

We demonstrate the fabrication of wearable supercapacitor electrodes. The electrodes were applied to wearable fabric by supersonically spraying the fabric with reduced graphene oxide (rGO) followed by decoration with iron oxide (Fe2O3) nanoparticles via a hydrothermal process. The integration of iron oxide with rGO flakes on wearable fabric demonstrates immense potential for applications in high-energy-storage devices. The synergetic impact of the intermingled rGO flakes and Fe2O3 nanoparticles enhances the charge transport within the composite electrode, ultimately improving the overall electrochemical performance. Taking advantage of the porous nature of the fabric, electrolyte diffusion into the active rGO and Fe2O3 materials was significantly enhanced and subsequently increased the electrochemical interfacial activities. The effect of the Fe2O3 concentration on the overall electrochemical performance was investigated. The optimal composition yields a specific capacitance of 360 F g−1 at a current density of 1 A g−1 with a capacitance retention rate of 89 % after 8500 galvanostatic cycles, confirming the long-term stability of the Fe2O3/rGO fabric electrode.



中文翻译:

以超音速喷涂在耐磨织物上并用氧化铁装饰的还原型氧化石墨烯,用于超级电容器应用

我们演示了可穿戴超级电容器电极的制造。通过用还原的氧化石墨烯(rGO)超声喷涂织物,然后通过水热工艺用氧化铁(Fe 2 O 3)纳米粒子装饰,将电极施加到可穿戴织物上。氧化铁与rGO薄片在可穿戴织物上的集成显示出在高能量存储设备中应用的巨大潜力。混合rGO薄片和Fe 2 O 3纳米颗粒的协同作用增强了复合电极内的电荷传输,最终改善了整体电化学性能。利用织物的多孔性,电解质扩散到活性rGO和Fe 2中O 3材料显着增强,随后增加了电化学界面活性。研究了Fe 2 O 3浓度对整体电化学性能的影响。最佳组成可在1 A g -1的电流密度下产生360 F g -1的比电容,经过8500次恒电流循环后的电容保持率为89%,从而确认了Fe 2 O 3 / rGO的长期稳定性织物电极。

更新日期:2021-01-29
down
wechat
bug