Abstract

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.

Details

Title
Facile synthesis of PEDOT-rGO/HKUST-1 for high performance symmetrical supercapacitor device
Author
Mohanadas Dharshini 1 ; Mohd Abdah Muhammad Amirul Aizat 1 ; Azman Nur Hawa Nabilah 2 ; Ravoof Thahira B S A 3 ; Sulaiman Yusran 4 

 Universiti Putra Malaysia, Department of Chemistry, Faculty of Science, Serdang, Malaysia (GRID:grid.11142.37) (ISNI:0000 0001 2231 800X) 
 Universiti Putra Malaysia, Functional Devices Laboratory, Institute of Advanced Technology (ITMA), Serdang, Malaysia (GRID:grid.11142.37) (ISNI:0000 0001 2231 800X) 
 Universiti Putra Malaysia, Department of Chemistry, Faculty of Science, Serdang, Malaysia (GRID:grid.11142.37) (ISNI:0000 0001 2231 800X); Universiti Putra Malaysia, Foundry of Reticular Materials for Sustainability (FORMS), Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Serdang, Malaysia (GRID:grid.11142.37) (ISNI:0000 0001 2231 800X) 
 Universiti Putra Malaysia, Department of Chemistry, Faculty of Science, Serdang, Malaysia (GRID:grid.11142.37) (ISNI:0000 0001 2231 800X); Universiti Putra Malaysia, Functional Devices Laboratory, Institute of Advanced Technology (ITMA), Serdang, Malaysia (GRID:grid.11142.37) (ISNI:0000 0001 2231 800X) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2536651951
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.