scholarly journals Bifunctional copper zinc bimetallic tungstate nanoparticles decorated reduced graphene oxide (CuZnWO4/rGO) for high-performance photocatalytic and supercapacitor application

2021 ◽  
Author(s):  
Elumalai Dhandapani ◽  
S. Prabhu ◽  
Navaneethan Duraisamy ◽  
R. Ramesh
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Supercapacitor Application ◽  
Reduced Graphene ◽  
Copper Zinc

scholarly journals Bifunctional copper-zinc bimetallic tungstate nanoparticles decorated reduced graphene oxide (CuZnWO4/rGO) for high-performance photocatalytic and supercapacitor application

2021 ◽  
Author(s):  
Elumalai Dhandapani ◽  
Prabhu S ◽  
Navaneethan Duraisamy ◽  
Ramesh R
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Electrode Materials ◽  
Diffuse Reflectance Spectroscopy ◽  
Aqueous Media ◽  
Specific Capacity ◽  
Supercapacitor Application ◽  
Reduced Graphene ◽  
Copper Zinc

Abstract In the present work, an attempt to synthesis of bimetallic copper zinc tungstate (CuZnWO4) nanoparticles with reduced graphene oxide (CuZnWO4/rGO) via one-step hydrothermal technique. The synthesized CuZnWO4/rGO composite are characterized by Fourier transform infrared spectroscopy (FTIR), Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis diffuse reflectance spectroscopy (UV-DRS) and Photoluminescence (PL). The photocatalytic performance is examined by the degradation of methylene blue (MB) dye under visible-light irradiation. The MB dye isalmost 73 % degraded within 80 minutes. Further, the electrochemical performance of hybrid CuZnWO4–rGOcomposite showed the specific capacity (SC) of 480 Fg− 1 at 4 Ag− 1 in 6 M KOH electrolyte with excellent cyclabilityconserving a capacitance retention of 127% after 5000 cycles due to increase diffusion of electrolyte ions to the electrode materials. These results support that the hybrid CuZnWO4–rGO composite as an appropriate electrode material for high-performance SCs electrode and an auspicious catalyst for the degradation of dye (organic) contaminants in aqueous media.

Facile synthesis of Fe3O4nanorod decorated reduced graphene oxide (RGO) for supercapacitor application

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 107057-107064 ◽  
Author(s):  
Ashok Kumar Das ◽  
Sumanta Sahoo ◽  
Prabhakarn Arunachalam ◽  
Suojiang Zhang ◽  
Jae-Jin Shim
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Facile Synthesis ◽  
Supercapacitor Application ◽  
Reduced Graphene

We describe a facile approach for the synthesis of RGO–Fe3O4nanorod nanocomposites for high performance supercapacitor application.

scholarly journals Ruthenium nanoparticles-modified reduced graphene prepared by a green method for high-performance supercapacitor application in neutral electrolyte

RSC Advances ◽  
2017 ◽  
Vol 7 (19) ◽  
pp. 11286-11296 ◽  
Author(s):  
Hagar K. Hassan ◽  
Nada F. Atta ◽  
Maher M. Hamed ◽  
Ahmed Galal ◽  
Timo Jacob
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Ruthenium Nanoparticles ◽  
Green Method ◽  
One Pot ◽  
Supercapacitor Application ◽  
Reduced Graphene ◽  
Neutral Electrolyte

Here, we report a one-pot preparation of a ruthenium-based reduced graphene oxide hybrid (Runano-based RGO) for supercapacitors applications.

Reduced graphene oxide – Cu nanocomposite for the high performance electrochemical supercapacitor application

2020 ◽  
Author(s):  
Godlaveeti Sreenivasa Kumar ◽  
Hussen Maseed ◽  
Dadamiah PMD Shaik ◽  
Mahfooz Alam ◽  
S. Adinarayana Reddy ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Supercapacitor Application ◽  
Electrochemical Supercapacitor ◽  
Reduced Graphene

Synthesis and Characterization of Reduced Graphene Oxide

2013 ◽  
Vol 678 ◽  
pp. 56-60 ◽  
Author(s):  
Cherukutty Ramakrishnan Minitha ◽  
Ramasamy Thangavelu Rajendrakumar
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Graphite Oxide ◽  
High Performance ◽  
Structural Changes ◽  
Epoxy Group ◽  
Xrd Analysis ◽  
Si Substrates ◽  
Reduced Graphene ◽  
Reduced Graphite Oxide

Reduced graphene oxide is an excellent candidate for various electronic devices such as high performance gas sensors. In this work Graphene oxide was prepared by oxidizing graphite to form graphite oxide. From XRD analysis the peak around 11.5o confirmed that the oxygen was intercalated into graphite. By using hydrazine hydrate, the epoxy group in graphite oxide was reduced then the solution of reduced graphite oxide (rGO) is exfoliated. Raman spectrum of rGO contains both G band (1580 cm-1), D band (1350 cm-1). The remarkable structural changes reveals that reduction of graphene oxide from the values of ID/IG ratio that increase from 0.727 (GO) to 1.414 (rGO). The exfoliated reduced graphite oxide solution is spin coated on to the SiO2/Si substrates.

Green and facile preparation of graphene/resveratrol/polyaniline composites for high-performance supercapacitors

2021 ◽  
Vol 45 (7) ◽  
pp. 3581-3588
Author(s):  
Zhaokun Wang ◽  
Licong Jiang ◽  
Hongwei Pan ◽  
Yongyin Cui ◽  
Chengzhong Zong
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Environmentally Friendly ◽  
Reduced Graphene ◽  
Facile Preparation ◽  
Polyaniline Composites

A novel and environmentally-friendly resveratrol (RA) was used as an effective reagent for the preparation of reduced graphene oxide (rGO).

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