用于高性能对称超级电容器器件的PEDOT-rGO/HKUST-1的简便合成
Facile synthesis of PEDOT-rGO/HKUST-1 for high performance symmetrical supercapacitor device.
作者信息
Mohanadas Dharshini, Mohd Abdah Muhammad Amirul Aizat, Azman Nur Hawa Nabilah, Ravoof Thahira B S A, Sulaiman Yusran
机构信息
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
Functional Devices Laboratory, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
出版信息
Sci Rep. 2021 Jun 3;11(1):11747. doi: 10.1038/s41598-021-91100-x.
A novel poly(3,4-ethylenedioxythiophene)-reduced graphene oxide/copper-based metal-organic framework (PrGO/HKUST-1) has been successfully fabricated by incorporating electrochemically synthesized poly(3,4-ethylenedioxythiophene)-reduced graphene oxide (PrGO) and hydrothermally synthesized copper-based metal-organic framework (HKUST-1). The field emission scanning microscopy (FESEM) and elemental mapping analysis revealed an even distribution of poly(3,4-ethylenedioxythiophene) (PEDOT), reduced graphene oxide (rGO) and HKUST-1. The crystalline structure and vibration modes of PrGO/HKUST-1 were validated utilizing X-ray diffraction (XRD) as well as Raman spectroscopy, respectively. A remarkable specific capacitance (360.5 F/g) was obtained for PrGO/HKUST-1 compared to HKUST-1 (103.1 F/g), PrGO (98.5 F/g) and PEDOT (50.8 F/g) using KCl/PVA as a gel electrolyte. Moreover, PrGO/HKUST-1 composite with the longest charge/discharge time displayed excellent specific energy (21.0 Wh/kg), specific power (479.7 W/kg) and an outstanding cycle life (95.5%) over 4000 cycles. Thus, the PrGO/HKUST-1 can be recognized as a promising energy storage material.
通过将电化学合成的聚（3,4 - 乙撑二氧噻吩）- 还原氧化石墨烯（PrGO）与水热合成的铜基金属有机框架（HKUST - 1）相结合，成功制备了一种新型的聚（3,4 - 乙撑二氧噻吩）- 还原氧化石墨烯/铜基金属有机框架（PrGO/HKUST - 1）。场发射扫描显微镜（FESEM）和元素映射分析表明聚（3,4 - 乙撑二氧噻吩）（PEDOT）、还原氧化石墨烯（rGO）和HKUST - 1分布均匀。分别利用X射线衍射（XRD）和拉曼光谱对PrGO/HKUST - 1的晶体结构和振动模式进行了验证。使用KCl/PVA作为凝胶电解质时，PrGO/HKUST - 1的比电容显著（360.5 F/g），相比之下，HKUST - 1（103.1 F/g）、PrGO（98.5 F/g）和PEDOT（50.8 F/g）。此外，具有最长充放电时间的PrGO/HKUST - 1复合材料在4000次循环中表现出优异的比能量（21.0 Wh/kg）、比功率（479.7 W/kg）和出色的循环寿命（95.5%）。因此，PrGO/HKUST - 1可被视为一种有前途的储能材料。
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