scholarly journals Sulfur encapsulated in thermally reduced graphite oxide as a cathode for Li–S batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 5298-5305 ◽  
Author(s):  
Xinbo Xu ◽  
Jiafeng Ruan ◽  
Yuepeng Pang ◽  
Tao Yuan ◽  
Shiyou Zheng
Keyword(s):  
Electrochemical Properties ◽  
Graphite Oxide ◽  
Composite Cathode ◽  
Thermal Reduction ◽  
Oxide Materials ◽  
Oxidation Degree ◽  
Reduced Graphite Oxide ◽  
The Matrix ◽  
Superior Electrochemical Properties

Reduced graphite oxide materials with different oxidation degree were investigated as the matrix to load sulfur by an in situ thermal-reduction and intercalation strategy. The C/S composite cathode exhibits a superior electrochemical properties.

scholarly journals Analysis of oxidation degree of graphite oxide and chemical structure of corresponding reduced graphite oxide by selecting different-sized original graphite

RSC Advances ◽  
2018 ◽  
Vol 8 (31) ◽  
pp. 17209-17217 ◽  
Author(s):  
Lu Shen ◽  
Lihua Zhang ◽  
Kui Wang ◽  
Lijing Miao ◽  
Qiaofeng Lan ◽  
...  
Keyword(s):  
Graphite Oxide ◽  
Chemical Structure ◽  
Chemical Properties ◽  
Thermal Reduction ◽  
Physical And Chemical Properties ◽  
Oxidation Degree ◽  
Reduced Graphite Oxide ◽  
Physical And Chemical ◽  
And Chemical Properties

The thermal reduction of GO is the most commonly used strategy for preparation of rGO, and the oxidation degree of GO would influence the chemical structure of prepared rGO, thereby affecting its physical and chemical properties.

scholarly journals Static and Dynamic Behavior of Polymer/Graphite Oxide Nanocomposites before and after Thermal Reduction

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1008
Author(s):  
Kiriaki Chrissopoulou ◽  
Krystalenia Androulaki ◽  
Massimiliano Labardi ◽  
Spiros H. Anastasiadis
Keyword(s):  
Graphite Oxide ◽  
Thermal Reduction ◽  
Polymer Chains ◽  
Solid Surfaces ◽  
Relaxation Processes ◽  
Thermal Transitions ◽  
Reduced Graphite Oxide ◽  
Before And After ◽  
Similarities And Differences ◽  
Thermal Stability Of

Nanocomposites of hyperbranched polymers with graphitic materials are investigated with respect to their structure and thermal properties as well as the dynamics of the polymer probing the effect of the different intercalated or exfoliated structure. Three generations of hyperbranched polyester polyols are mixed with graphite oxide (GO) and the favorable interactions between the polymers and the solid surfaces lead to intercalated structure. The thermal transitions of the confined chains are suppressed, whereas their dynamics show similarities and differences with the dynamics of the neat polymers. The three relaxation processes observed for the neat polymers are observed in the nanohybrids as well, but with different temperature dependencies. Thermal reduction of the graphite oxide in the presence of the polymer to produce reduced graphite oxide (rGO) reveals an increase in the reduction temperature, which is accompanied by decreased thermal stability of the polymer. The de-oxygenation of the graphite oxide leads to the destruction of the intercalated structure and to the dispersion of the rGO layers within the polymeric matrix because of the modification of the interactions between the polymer chains and the surfaces. A significant increase in the conductivity of the resulting nanocomposites, in comparison to both the polymers and the intercalated nanohybrids, indicates the formation of a percolated rGO network.

scholarly journals Electrochemical properties of nitrogen-doped carbons prepared by the thermal reduction of furfurylamine-intercalated graphite oxide

TANSO ◽  
2018 ◽  
Vol 2018 (281) ◽  
pp. 2-7 ◽  
Author(s):  
Yoshiaki Matsuo ◽  
Shunya Maruyama ◽  
Qian Cheng ◽  
Yasuharu Okamoto ◽  
Noriyuki Tamura
Keyword(s):  
Electrochemical Properties ◽  
Graphite Oxide ◽  
Thermal Reduction ◽  
Nitrogen Doped ◽  
Intercalated Graphite

In situ catalytic formation of graphene decoration on Na3V2(PO4)3 particles for ultrafast and long-life sodium storage

2016 ◽  
Vol 4 (43) ◽  
pp. 16801-16804 ◽  
Author(s):  
Qiao Hu ◽  
Jia-Ying Liao ◽  
Bang-Kun Zou ◽  
He-Yang Wang ◽  
Chun-Hua Chen
Keyword(s):  
Electrochemical Properties ◽  
Catalytic Process ◽  
Long Life ◽  
Superior Electrochemical Properties ◽  
Sodium Storage

Graphene-decorated Na3V2(PO4)3 with superior electrochemical properties is synthesized through an in situ catalytic process using VOx as a catalyst.

Regulating the oxidation degree of nickel foam: a smart strategy to controllably synthesize active Ni3S2 nanorod/nanowire arrays for high-performance supercapacitors

2016 ◽  
Vol 4 (21) ◽  
pp. 8029-8040 ◽  
Author(s):  
Tingting Li ◽  
Yunpeng Zuo ◽  
Xiaomin Lei ◽  
Na Li ◽  
Jiawei Liu ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
High Performance ◽  
Nickel Foam ◽  
Nanowire Arrays ◽  
Oxidation Degree

Grass-like Ni3S2 nanorod/nanowire arrays in situ grown on NF network are synthesized through simply regulating the pre-oxidation degree of NF precursor which demonstrate excellent electrochemical properties.

Thermal conductivity of epoxy composites filled by thermally reduced graphite oxide with different reduction degree

2017 ◽  
Vol 51 (12) ◽  
pp. 1743-1752 ◽  
Author(s):  
Yingying Sun ◽  
Lin Chen ◽  
Jun Lin ◽  
Peng Cui ◽  
Meicheng Li ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Graphite Oxide ◽  
Annealing Temperature ◽  
Thermal Reduction ◽  
Epoxy Composites ◽  
Reduction Degree ◽  
Conductivity Enhancement ◽  
Interfacial Bonding Strength ◽  
Reduced Graphite Oxide ◽  
Out Of Plane

A series of selectively reduced graphite oxide was prepared by thermal reduction of graphite oxide at different annealing temperatures and used as fillers to enhance thermal conductivity of epoxy composites. The reduction degree of selectively reduced graphite oxide increases with annealing temperature changing from 600℃ to 1000℃. The out-of-plane thermal conductivity ( Κo) of selectively reduced graphite oxide/epoxy composites is remarkably higher than that of graphite oxide/epoxy. For the selectively reduced graphite oxide obtained at 1000℃, Κo reaches 0.674 W/m·K when filler content is 5.4 wt%, which is 450% of pure epoxy. The enhanced Κo can be attributed to the better dispersion of selectively reduced graphite oxide in epoxy and their edges overlap to form effective thermal conductive paths in epoxy matrix. However, the achieved thermal conductivity enhancement is still comparatively lower than that of selectively reduced graphite oxide with higher reduction degree, since the interfacial bonding strength between selectively reduced graphite oxide and epoxy decreases when reduction degree of selectively reduced graphite oxide flakes becomes higher.

scholarly journals A high performance wire-shaped flexible lithium-ion battery based on silicon nanoparticles within polypyrrole/twisted carbon fibers

RSC Advances ◽  
2017 ◽  
Vol 7 (43) ◽  
pp. 26601-26607 ◽  
Author(s):  
Jiangyu Rao ◽  
Nishuang Liu ◽  
Luying Li ◽  
Jun Su ◽  
Fei Long ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Battery ◽  
Carbon Fibers ◽  
High Performance ◽  
Silicon Nanoparticles ◽  
Lithium Ion ◽  
The Wire ◽  
Polymerization Method ◽  
Superior Electrochemical Properties

Interconnected Si/PPy/CF electrode was made byin situpolymerization method and used in the wire-shaped lithium ion battery. The electrode exhibited superior electrochemical properties and flexible ability.

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