Enhanced capacitance of one-dimensional polypyrrole/graphene oxide nanoribbon nanocomposite as electrode material for high performance supercapacitors

2014 ◽  
Vol 198 ◽  
pp. 188-195 ◽  
Author(s):  
Feng-Hao Hsu ◽  
Tzong-Ming Wu
Keyword(s):  
Graphene Oxide ◽  
Electrode Material ◽  
High Performance ◽  
One Dimensional

Nitrogen-Enriched Reduced Graphene Oxide for High Performance Supercapacitor Electrode

2020 ◽  
Vol 20 (8) ◽  
pp. 4854-4859 ◽  
Author(s):  
Lei Chen ◽  
Xu Chen ◽  
Yaqiong Wen ◽  
Bixia Wang ◽  
Yangchen Wu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Oxide Electrode ◽  
Reduced Graphene

Nitrogen-enriched reduced graphene oxide electrode material can be successfully prepared through a simple hydrothermal method. The morphology and microstructure of ready to use electrode material is measured by field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). Physical characterizations revealed that nitrogen-enriched reduced graphene oxide electrode material possessed high specific surface area of 429.6 m2 · g−1, resulting in high utilization of electrode materials with electrolyte. Electrochemical performance of nitrogen-enriched reduced graphene oxide electrode was also investigated by cyclic voltammetry (CV), galvanostatic charge/discharge measurements and electrochemical impedance spectroscopy (EIS) in aqueous in 6 M KOH with a three-electrode system, which displayed a high specific capacitance about 223.5 F · g−1 at 1 mV · s−1. More importantly, nitrogenenriched reduced graphene oxide electrode exhibited outstanding stability with 100% coulombic efficiency and with no specific capacitance loss under 2 A · g−1 after 10000 cycles. The supercapacitive behaviors indicated that nitrogen-enriched reduced graphene oxide can be a used as a promising electrode for high-performance super-capacitors.

Novel NiCo2S4@reduced graphene oxide@carbon nanotube nanocomposites for high performance supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 100504-100510 ◽  
Author(s):  
Jingxuan Xu ◽  
Yang Yang ◽  
Hang Chu ◽  
Jianhua Tang ◽  
Yuancai Ge ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
High Performance ◽  
Three Dimensional ◽  
Reduced Graphene

Novel three-dimensional NiCo2S4@rGO@CNT nanocomposite electrode material was synthesized.

Manganese dioxide/ reduced graphene oxide composite an electrode material for high-performance solid state supercapacitor

2019 ◽  
Vol 299 ◽  
pp. 34-44 ◽  
Author(s):  
Sarika Jadhav ◽  
Ramchandra S. Kalubarme ◽  
Chiaki Terashima ◽  
Bharat B. Kale ◽  
Vijay Godbole ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solid State ◽  
Manganese Dioxide ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
High Performance ◽  
Oxide Composite ◽  
Reduced Graphene
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