High Electrochemical Performance of LiFePO4 Cathode Material via In-Situ Microwave Exfoliated Graphene Oxide

2015 ◽  
Vol 151 ◽  
pp. 240-248 ◽  
Author(s):  
Feng Yu ◽  
Lili Zhang ◽  
Linfei Lai ◽  
Mingyuan Zhu ◽  
Yanchuan Guo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Exfoliated Graphene ◽  
Lifepo4 Cathode

Reduction of graphene oxide gel with carbon nanotubes, sulfur cathode material preparation and electrochemical performance

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 38943-38949 ◽  
Author(s):  
Jianrong Xiao ◽  
Hongzhe Wang ◽  
Yongxuan Hou ◽  
Yafang Guo
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Reduction Method ◽  
Sulfur Cathode ◽  
Material Preparation ◽  
Hydrothermal Reduction

Reduction of graphene oxide with different reduction degrees was carried out using a hydrothermal reduction method at 130–190 °C.

An in situ grown bacterial nanocellulose/graphene oxide composite for flexible supercapacitors

2017 ◽  
Vol 5 (27) ◽  
pp. 13976-13982 ◽  
Author(s):  
Qisheng Jiang ◽  
Clayton Kacica ◽  
Thiagarajan Soundappan ◽  
Keng-ku Liu ◽  
Sirimuvva Tadepalli ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Conducting Polymer ◽  
Supercapacitor Electrode ◽  
Bacterial Nanocellulose ◽  
Oxide Composite ◽  
Flexible Supercapacitor ◽  
Flexible Supercapacitors ◽  
Excellent Electrochemical Performance

A flexible supercapacitor electrode with excellent electrochemical performance and mechanical flexibility is fabricated via in situ incorporation of graphene oxide flakes and conducting polymer (PEDOT:PSS) into a layered bacterial nanocellulose network during its growth.

In situ polyaniline modified cathode material Li[Li0.2Mn0.54Ni0.13Co0.13]O2 with high rate capacity for lithium ion batteries

2014 ◽  
Vol 2 (43) ◽  
pp. 18613-18623 ◽  
Author(s):  
Qingrui. Xue ◽  
Jianling. Li ◽  
Guofeng. Xu ◽  
Hongwei. Zhou ◽  
Xindong. Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Acid Treatment ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Capacity ◽  
Compound Modification

Compound modification by polyaniline coating and acid treatment is an ideal way to improve the electrochemical performance of Li[Li0.2Mn0.54Ni0.13Co0.13]O2.

scholarly journals Graphene synthesis by hydrazine and reduced thermal expansion graphite oxide and application in the preparation of nano-composite PMMA/graphene

2016 ◽  
Vol 19 (4) ◽  
pp. 214-226
Author(s):  
Vy Tuong Nguyen ◽  
Trung Lap Huynh ◽  
Tam Thanh Mai ◽  
Huy Thuc Ha
Keyword(s):  
Graphene Oxide ◽  
Decomposition Temperature ◽  
Nanocomposite Materials ◽  
Pure Pmma ◽  
Nano Composite ◽  
Structure And Morphology ◽  
Exfoliated Graphene ◽  
Graphene Synthesis ◽  
Graphene Nanocomposite

By in situ emulsion method to prepare polymethyl metaacrylate (PMMA) and graphene nanocomposite materials showed remarkable properties: the in glass transition temperature was increased from 5-80 0C, the decomposition temperature was 50 0C higher, the stiffness is 46 % higher compared to the pure PMMA. The reduction of exfoliated graphene oxide in TGO-PMMA nanocomposite after synthesis by hydrazine is more effective than the reduction of graphene oxide into graphene and then synthesizing the nanocomposite with PMMA. There are some differences in the structure and morphology of two nanocomposite samples (SEM and TEM) synthesized by these two methods, leading differences in their properties, as well as the original pure PMMA. These results open up new potential for the application of graphene and resulted nanocomposites.

Effects of Polypyrrole/Graphene Oxide Composites with Different Reaction Times on Electrochemical Performance

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Minzhen Feng
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reaction Times ◽  
Second Step ◽  
Hummers Method ◽  
Oxide Composites ◽  
Oxide Composite Material ◽  
Modified Hummers Method

Abstract: Graphene oxide (GO) was prepared using the modified Hummers method and used as a template for polypyrrole. Polypyrrole was polymerized in situ on the surface of GO to finally obtain the polypyrrole/graphene oxide composite material. The effects of different reaction times on the electrochemical performance of polypyrrole/graphene oxide in the second step were studied. It was obtained that the composite material had optimal properties when the reaction time was 24 h.

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