Freestanding 3D Polypyrrole@reduced graphene oxide hydrogels as binder-free electrode materials for flexible asymmetric supercapacitors

2019 ◽  
Vol 536 ◽  
pp. 291-299 ◽  
Author(s):  
Xu Zhang ◽  
Jinyu Zhang ◽  
Ye Chen ◽  
Kui Cheng ◽  
Jun Yan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrode Materials ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene ◽  
Binder Free

Binder-free reduced graphene oxide as electrode material for efficient supercapacitor with aqueous and polymer electrolytes

2020 ◽  
Vol 32 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Manoj Karakoti ◽  
Ritu Jangra ◽  
Sandeep Pandey ◽  
Pawan Singh Dhapola ◽  
Sunil Dhali ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Smart Materials ◽  
Electrode Materials ◽  
Poly Vinyl Alcohol ◽  
Polymer Gel ◽  
Energy Storage Devices ◽  
Graphite Sheet ◽  
Reduced Graphene ◽  
Binder Free

The demand for energy and energy storage devices is the urgent need of our society due to heavy dependence on electric appliances. Hence, the demand of graphene-like smart materials has grown tremendously in the past years. Herein, we investigated the binder-free graphene allies named reduced graphene oxide (rGO) as electrode materials for the supercapacitor after the reduction of graphene oxide by sinking and leaving process. The rGO-based devices show the areal specific capacitance of 80.2 and 7.89 mF cm−2 with aqueous 1M phosphoric acid (H3PO4) and poly (vinyl alcohol)-H3PO4 polymer gel electrolytes, respectively, over the graphite sheet.

scholarly journals Correction: Multi-porous Co3O4 nanoflakes@sponge-like few-layer partially reduced graphene oxide hybrids: towards highly stable asymmetric supercapacitors

2017 ◽  
Vol 5 (24) ◽  
pp. 12578-12578
Author(s):  
Mohammad Qorbani ◽  
Tsu-chin Chou ◽  
Yi-Hsin Lee ◽  
Satyanarayana Samireddi ◽  
Naimeh Naseri ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene ◽  
Partially Reduced Graphene Oxide

Correction for ‘Multi-porous Co3O4 nanoflakes@sponge-like few-layer partially reduced graphene oxide hybrids: towards highly stable asymmetric supercapacitors’ by Mohammad Qorbani et al., J. Mater. Chem. A, 2017, DOI: 10.1039/c7ta00694b.

Si-mediated fabrication of reduced graphene oxide and its hybrids for electrode materials

2015 ◽  
Vol 17 (2) ◽  
pp. 776-780 ◽  
Author(s):  
Barun Kumar Barman ◽  
Karuna Kar Nanda
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrode Materials ◽  
Multiwall Carbon Nanotubes ◽  
Environmentally Friendly ◽  
Si Substrate ◽  
Reduced Graphene ◽  
Multiwall Carbon

We demonstrate a Si-mediated environmentally friendly reduction of graphene oxide (GO) and the fabrication of hybrid electrode materials with multiwall carbon nanotubes and nanofibers. The reduction of GO is facilitated by the nascent hydrogen generated by the reaction between Si and KOH. The overall process consumes 10 to 15 μm of Si each time and the same Si substrate can be used multiple times.

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