A promising negative electrode of asymmetric supercapacitor fabricated by incorporating copper-based metal-organic framework and reduced graphene oxide

2021 ◽  
Vol 46 (71) ◽  
pp. 35385-35396 ◽  
Author(s):  
Dharshini Mohanadas ◽  
Muhammad Amirul Aizat Mohd Abdah ◽  
Nur Hawa Nabilah Azman ◽  
Jaafar Abdullah ◽  
Yusran Sulaiman
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Metal Organic Framework ◽  
Negative Electrode ◽  
Asymmetric Supercapacitor ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Poly(3,4-ethylenedioxythiophene)-reduced graphene oxide/copper-based metal-organic frameworks as a high-performance symmetrical supercapacitor device

2021 ◽  
Author(s):  
Dharshini Mohanadas ◽  
Muhammad Amirul Aizat Mohd Abdah ◽  
Nur Hawa Nabilah Azman ◽  
Thahira B.S.A. Ravoof ◽  
Yusran Sulaiman
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Metal Organic Framework ◽  
Specific Power ◽  
X Ray Diffraction ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Energy Storage Material ◽  
Organic Framework

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 was 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 outstanding cycle life (95.5%) over 4000 cycles. Thus, the PrGO/HKUST-1 can be recognized as a promising energy storage material.

Interrogation of Electrochemical Performance of Reduced Graphene Oxide/Metal‐organic Framework Hybrid for Asymmetric Supercabattery Application

2020 ◽  
Vol 32 (12) ◽  
pp. 2827-2837
Author(s):  
Daniel M. Teffu ◽  
Mogwasha D. Makhafola ◽  
Miranda M. Ndipingwi ◽  
Edwin Makhado ◽  
Mpitloane J. Hato ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
Metal Organic Framework ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Organic Framework

rGO wrapped trimetallic sulfide nanowires as an efficient bifunctional catalyst for electrocatalytic oxygen evolution and photocatalytic organic degradation

2020 ◽  
Vol 8 (27) ◽  
pp. 13558-13571 ◽  
Author(s):  
Bin Wang ◽  
Yuanfu Chen ◽  
Xinqiang Wang ◽  
Jeyagopal Ramkumar ◽  
Xiaojuan Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Oxygen Evolution ◽  
Metal Organic Framework ◽  
Bifunctional Catalyst ◽  
Organic Degradation ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Organic Framework

A novel metal–organic framework (MOF)-derived Janus-type nanoarchitecture is constructed with reduced graphene oxide wrapped trimetallic sulfide nanowires.

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