Enhanced Electrochemical Performance of Reduced Graphene Oxides by H2/Ar Plasma Treatment

2014 ◽  
Vol 118 (49) ◽  
pp. 28440-28447 ◽  
Author(s):  
Jie Li ◽  
Changlun Chen ◽  
Juan Wei ◽  
Jiaxing Li ◽  
Xiangke Wang
Keyword(s):  
Electrochemical Performance ◽  
Plasma Treatment ◽  
Graphene Oxides ◽  
Reduced Graphene ◽  
Reduced Graphene Oxides ◽  
Ar Plasma ◽  
Enhanced Electrochemical Performance

scholarly journals Reduced Graphene Oxides Decorated NiSe Nanoparticles as High Performance Electrodes for Na/Li Storage

Materials ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 3709 ◽  
Author(s):  
Yan Liu ◽  
Xianshui Wang
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Specific Capacity ◽  
Reversible Capacity ◽  
Graphene Oxides ◽  
One Pot ◽  
Reduced Graphene ◽  
Li Ion ◽  
Enhanced Electrochemical Performance ◽  
Li Storage

A facile, one-pot hydrothermal method was used to synthesize Nickel selenide (NiSe) nanoparticles decorated with reduced graphene oxide nanosheets (rGO), denoted as NiSe/rGO. The NiSe/rGO exhibits good electrochemical performance when tested as anodes for Na-ion batteries (SIBs) and Li-ion batteries (LIBs). An initial reversible capacity of 423 mA h g−1 is achieved for SIBs with excellent cyclability (378 mA h g−1 for 50th cycle at 0.05 A g−1). As anode for LIBs, it delivers a remarkable reversible specific capacity of 1125 mA h g−1 at 0.05 A g−1. The enhanced electrochemical performance of NiSe/rGO nanocomposites can be ascribed to the synergic effects between NiSe nanoparticles and rGO, which provide high conductivity and large specific surface area, indicating NiSe/rGO as very promising Na/Li storage materials.

Beneficial impact of oxygen on the electrochemical performance of dopamine sensors based on N-doped reduced graphene oxides

2018 ◽  
Vol 257 ◽  
pp. 143-153 ◽  
Author(s):  
Piotr Wiench ◽  
Zoraida González ◽  
Rosa Menéndez ◽  
Bartosz Grzyb ◽  
Grażyna Gryglewicz
Keyword(s):  
Electrochemical Performance ◽  
Graphene Oxides ◽  
Reduced Graphene ◽  
Beneficial Impact ◽  
Reduced Graphene Oxides

Comparison of reduced graphene oxides synthesized chemically with different reducing agents for supercapacitors

2021 ◽  
Vol 63 (12) ◽  
pp. 1184-1190
Author(s):  
Yifan Cui ◽  
Rong Li ◽  
Liuqin Lai ◽  
Huimin Dai ◽  
Siyu Su ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
Reference Sample ◽  
Reducing Agents ◽  
Carbon Cloth ◽  
Graphene Oxides ◽  
Reduced Graphene ◽  
Reduced Graphene Oxides

Abstract The chemical reduction of graphene oxide is an effective method for the synthesis of reduced graphene oxide, having the obvious advantages of low cost and large scale applicability. Our work produced reduced graphene oxide through a simple water bath reduction approach using various reducing agents of N2H4 × H2O, NaBH4, Na2S2O3, HI, and a reference sample without reducing agent at the same reduction temperature and duration time, by which reduced graphene oxides represented as N-RGO, B-RGO, S-RGO, I-RGO, and RGO0 were fabricated. Subsequently, unbonded flexible electrodes based on carbon cloth were fabricated with the reduced graphene oxides mentioned above, whereupon the structure, morphology and electrochemical performance were characterized. The electrochemical results indicate that the order of specific capacitances is N-RGO > B-RGO > S-RGO > RGO0 > I-RGO, while I-RGO’s potential window is wider than that of the others. As a result, N-RGO displays the best electrochemical performance among all reduced graphene oxides, with a specific capacitance as high as 176.0 F × g-1 and 77.8 % of the initial specific capacitance maintained at a high current density of 20 A × g-1.

Enhanced 1T phase promotes sodium storage performances of MoS2 flower-like spheres with embedded reduced graphene oxides

2021 ◽  
Vol 297 ◽  
pp. 122027
Author(s):  
Xianglin Yu ◽  
Ruixue Li ◽  
Xinyu Hu ◽  
Ren He ◽  
Kehui Xue ◽  
...  
Keyword(s):  
Graphene Oxides ◽  
Reduced Graphene ◽  
Reduced Graphene Oxides ◽  
Sodium Storage

scholarly journals Analysis of Reduced Graphene Oxides by X-ray Photoelectron Spectroscopy and Electrochemical Capacitance

2013 ◽  
Vol 42 (8) ◽  
pp. 924-926 ◽  
Author(s):  
Michio Koinuma ◽  
Hikaru Tateishi ◽  
Kazuto Hatakeyama ◽  
Shinsuke Miyamoto ◽  
Chikako Ogata ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Graphene Oxides ◽  
Electrochemical Capacitance ◽  
X Ray ◽  
Reduced Graphene ◽  
Reduced Graphene Oxides

Unusual morphologies of reduced graphene oxide and polyaniline nanofibers-reduced graphene oxide composites for high performance supercapacitor applications

RSC Advances ◽  
2014 ◽  
Vol 4 (43) ◽  
pp. 22551-22560 ◽  
Author(s):  
Rahul S. Diggikar ◽  
Dattatray J. Late ◽  
Bharat B. Kale
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Polyaniline Nanofibers ◽  
Pani Nanofibers ◽  
Reduced Graphene ◽  
Oxide Composites ◽  
Enhanced Electrochemical Performance ◽  
Supercapacitor Applications

The unique morphologies of reduced graphene oxide (RGO) and RGO–PANI nanofibers (NF) composites have been demonstrated. The enhanced electrochemical performance was observed for honeycomb like RGO–PANI NFs composites.

Modification of thermally reduced graphene oxide by the SF6/Ar plasma treatment

2017 ◽  
Vol 8 (5) ◽  
pp. 763-768 ◽  
Author(s):  
E. P. Neustroev ◽  
M. V. Nogovitcyna ◽  
V. I. Popov ◽  
V. B. Timofeev
Keyword(s):  
Graphene Oxide ◽  
Plasma Treatment ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Ar Plasma
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