Enhanced electrochemical performance of lamellar structured Co–Ni(OH)2/reduced graphene oxide (rGO) via hydrothermal synthesis

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 4764-4769 ◽  
Author(s):  
Sintayehu Nibret Tiruneh ◽  
Bong Kyun Kang ◽  
Quang Tran Ngoc ◽  
Dae Ho Yoon
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
High Mass ◽  
Mass Loading ◽  
Long Term Stability ◽  
Reduced Graphene ◽  
Electrode Fabrication ◽  
Enhanced Electrochemical Performance ◽  
Enhanced Crystallinity

Lamellar Co–Ni(OH)2/rGO structures were synthesized and electrochemical properties were improved due to the unique structure and enhanced crystallinity. Also, exhibited long term stability even if high mass loading was used in electrode fabrication.

scholarly journals Hydrothermally reduced graphene oxide for the effective wrapping of sulfur particles showing long term stability as electrodes for Li-S batteries

Carbon ◽  
2018 ◽  
Vol 139 ◽  
pp. 226-233 ◽  
Author(s):  
J.L. Gómez-Urbano ◽  
J.L. Gómez-Cámer ◽  
C. Botas ◽  
N. Díez ◽  
J.M. López del Amo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Term Stability ◽  
Long Term Stability ◽  
Reduced Graphene

Electrochemical oxidation of glucose on gold nanoparticle-modified reduced graphene oxide electrodes in alkaline solutions

2015 ◽  
Vol 08 (03) ◽  
pp. 1540004 ◽  
Author(s):  
Qiaofang Shi ◽  
Guowang Diao ◽  
Shaolin Mu
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Glucose Oxidation ◽  
Alkaline Solutions ◽  
Long Term Stability ◽  
Oxide Electrodes ◽  
Reduced Graphene ◽  
Constant Potential ◽  
Oxidation Of Glucose

A given amount of gold is electrodeposited on the reduced graphene oxide (RGO)/glassy carbon (GC) electrodes to form Au /RGO/GC electrodes, which are carried out at different potentials. The Au /RGO/GC electrode with Au loading of 250 μg cm-2 prepared at a constant potential of -0.30 V exhibits the best electrocatalytic activity to glucose oxidation in alkaline solutions because of homogeneous dispersion of gold nanoparticles with smaller sizes. This electrode shows long-term stability, rapid charge transfer ability, and higher current density compared to other gold electrodes reported previously.

Molybdenum diselenide/reduced graphene oxide based hybrid nanosheets for supercapacitor applications

2016 ◽  
Vol 45 (23) ◽  
pp. 9646-9653 ◽  
Author(s):  
Suresh Kannan Balasingam ◽  
Jae Sung Lee ◽  
Yongseok Jun
Keyword(s):  
Graphene Oxide ◽  
High Current Density ◽  
Hydrothermal Process ◽  
High Current ◽  
Long Term Stability ◽  
Reduced Graphene ◽  
Molybdenum Diselenide ◽  
Supercapacitor Applications ◽  
Facile Hydrothermal Process

The hybrid MoSe2/rGO nanosheets were synthesized via a facile hydrothermal process. The hybrid nanosheets electrode showed enhanced specific capacitance value than that of the pristine MoSe2. The MoSe2/rGO nanosheets exhibited increasing capacitance retention of up to 180% for the long-term stability test of 10,000 cycles at high current density.

Ultrahigh water permeance of a reduced graphene oxide nanofiltration membrane for multivalent metal ion rejection

2020 ◽  
Vol 56 (95) ◽  
pp. 15068-15071
Author(s):  
Fangfang Dai ◽  
Risheng Yu ◽  
Ruobing Yi ◽  
Jian Lan ◽  
Rujie Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Metal Ion ◽  
Nanofiltration Membrane ◽  
Long Term Stability ◽  
Ion Rejection ◽  
Reduced Graphene ◽  
Multivalent Metal ◽  
Water Permeance

A simple way to fabricate pure rGO membranes shows ultrahigh water permeance and excellent multivalent metal ion rejection, as well as long-term stability.

scholarly journals Universal Method for Producing Reduced Graphene Oxide/Gold Nanoparticles Composites with Controlled Density of Grafting and Long-Term Stability

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 602 ◽  
Author(s):  
Szustakiewicz ◽  
Kołsut ◽  
Leniart ◽  
Lewandowski
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hybrid Nanostructures ◽  
Ex Situ ◽  
Universal Method ◽  
Term Stability ◽  
Long Term Stability ◽  
Reduced Graphene

In this study, we report a universal approach allowing the non-covalent deposition of gold nanoparticles on reduced graphene oxide surface in a controlled fashion. We used a modified Hummers method to obtain graphene oxide, which then underwent surficial functionalization with carboxyl moieties coupled with simultaneous reduction. Nanoparticles were synthesized ex-situ and capped with a thiolated poly-ethylene glycol (PEG) ligand. The interactions between the surface of modified graphene oxide and nanoparticle ligands enabled the formation of stable hybrid graphene-nanoparticles materials in the aqueous phase. Using this technique, we were able to cover the surface of graphene with gold nanoparticles of different shapes (spheres, rods, triangles, stars, and bipyramids), broad range of sizes (from 5 nm to 100 nm) and controlled grafting densities. Moreover, materials obtained with this strategy exhibited long-term stability, which coupled with the versatility and facility of preparation, makes our technique appealing in the light of increasing demand for new graphene-based hybrid nanostructures.

Glucose-assisted hydrothermal synthesis of few-layer reduced graphene oxide wrapped mesoporous TiO2 submicrospheres with enhanced electrochemical performance for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (25) ◽  
pp. 20741-20749 ◽  
Author(s):  
Jun Peng ◽  
Gang Wang ◽  
Yong-Tao Zuo ◽  
Gang Li ◽  
Feng Yu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Reduced Graphene Oxide ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Mesoporous Tio2 ◽  
High Specific Capacity ◽  
Reduced Graphene ◽  
Excellent Cycling Stability ◽  
Enhanced Electrochemical Performance

Few-layer reduced graphene oxide-wrapped mesoporous anatase TiO2 submicrosphere (denoted as m-TiO2@FL-RGO) composite prepared by glucose-assisted hydrothermal method exhibits high specific capacity and excellent cycling stability.

Flexible H2V3O8 nanobelts/reduced graphene oxide electrodes with high mass loading for lithium ion batteries

2019 ◽  
Vol 329 ◽  
pp. 74-81 ◽  
Author(s):  
Zuowei Liu ◽  
Renxin Xu ◽  
Wei Wei ◽  
Peng Jing ◽  
Xin Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Lithium Ion ◽  
High Mass ◽  
Mass Loading ◽  
Oxide Electrodes ◽  
Reduced Graphene
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