材料科学
超级电容器
电极
化学工程
碳纤维
纳米复合材料
纳米技术
复合数
复合材料
电化学
化学
物理化学
工程类
作者
R. Brindha,Chingakham Chinglenthoiba,Huiqing Xie,NI Xi Ping,Hui Kim Hui,Suresh Valiyaveettil,Seeram Ramakrishna,Vijila Chellappan
标识
DOI:10.1016/j.surfin.2022.102397
摘要
The development of next-generation supercapacitors requires efficient integration of conductive and charge storage framework with safer and sustainable production methods. Herein, a simple one-pot synthesis was used to synthesize Iron based metal-organic framework and carbon composite (Fe-MOF@AC) electrode . The fabricated electrode delivered a high-power storage capacity due to low interfacial resistance between the working electrode and electrolyte. The activated carbon (AC) was obtained from recycled polystyrene , with the aim of reducing plastic pollution and to foster cleaner, sustainable environment. Plastic with insulating property was transformed to highly conductive graphitized carbon, which act as electron reservoirs for pristine Fe-MOF electrodes. Importantly, we show that the increased carbon content up to saturation limit, enables redox to pseudocapacitive behavior with satisfactory capacitive and cyclic stability despite a minimal drop in internal resistance. The MOF electrode composited with 70 mg of AC, Fe-MOF@AC70 retained ∼82% of its initial capacity (628.5 F g −1 ) after 10,000 cycles. Both surface-controlled and diffusion-controlled charge transfer mechanism contribute to the charge storage, with diffusion-controlled being more prevalent in Fe-MOF@AC70. The calculated energy and power density were 16.24 Wh kg −1 and 897.5 W kg −1 , respectively for the fabricated Fe-MOF@AC70/carbon cloth electrode. Sustainable Fe-MOF@AC electrodes for asymmetric supercapaitor.
科研通智能强力驱动
Strongly Powered by AbleSci AI