Scalable mechanochemical coupling of homogeneous Co3O4 nanocrystals onto in-situ exfoliated graphene sheets for asymmetric supercapacitors

2020 ◽  
Vol 397 ◽  
pp. 125503 ◽  
Author(s):  
Yulin Jiang ◽  
Chengen He ◽  
Shengqiang Qiu ◽  
Jinlong Zhang ◽  
Xianggang Wang ◽  
...  
Keyword(s):  
Graphene Sheets ◽  
Asymmetric Supercapacitors ◽  
Exfoliated Graphene ◽  
Mechanochemical Coupling

scholarly journals In situ growth of capping-free magnetic iron oxide nanoparticles on liquid-phase exfoliated graphene

Nanoscale ◽  
2015 ◽  
Vol 7 (19) ◽  
pp. 8995-9003 ◽  
Author(s):  
T. Tsoufis ◽  
Z. Syrgiannis ◽  
N. Akhtar ◽  
M. Prato ◽  
F. Katsaros ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Liquid Phase ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Graphene Sheets ◽  
In Situ Growth ◽  
Magnetic Iron Oxide Nanoparticles ◽  
High Quality ◽  
Exfoliated Graphene

We report a facile approach for the in situ synthesis of very small iron oxide nanoparticles on the surface of high-quality graphene sheets.

Sulfur synchronously electrodeposited onto exfoliated graphene sheets as a cathode material for advanced lithium–sulfur batteries

2015 ◽  
Vol 3 (32) ◽  
pp. 16513-16519 ◽  
Author(s):  
Liyuan Zhang ◽  
Hui Huang ◽  
Hailin Yin ◽  
Yang Xia ◽  
Jianmin Luo ◽  
...  
Keyword(s):  
Cathode Material ◽  
Graphene Sheets ◽  
Exfoliated Graphene ◽  
Novel Synthesis ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A novel synthesis of graphene–sulfur composites is designed by electrolytic exfoliation of graphite coupled with in situ electrodeposition of sulfur.

Vacancies-engineered MoO3 and Na+-preinserted MnO2 in-situ grown N-doped graphene nanotubes as electrode materials for high-performance asymmetric supercapacitor

2021 ◽  
Author(s):  
Jian Zhao ◽  
He Cheng ◽  
Huanyu Li ◽  
Yan-Jie Wang ◽  
Qingyan Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Energy ◽  
Cooperative Effect ◽  
Electrochemical Energy Storage ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Doped Graphene ◽  
Power Densities

Developing advanced negative and positive electrode materials for asymmetric supercapacitors (ASCs) as the electrochemical energy storage can enable the device to reach high energy/power densities resulting from the cooperative effect...

scholarly journals Liquid-phase exfoliated graphene: functionalization, characterization, and applications

2014 ◽  
Vol 5 ◽  
pp. 2328-2338 ◽  
Author(s):  
Mildred Quintana ◽  
Jesús Iván Tapia ◽  
Maurizio Prato
Keyword(s):  
Organic Chemistry ◽  
Liquid Phase ◽  
Chemical Reactions ◽  
Functional Materials ◽  
Atomic Plane ◽  
Graphene Sheets ◽  
Exfoliated Graphene ◽  
Graphene Functionalization ◽  
Chemical Strategies ◽  
Insight Into

The development of chemical strategies to render graphene viable for incorporation into devices is a great challenge. A promising approach is the production of stable graphene dispersions from the exfoliation of graphite in water and organic solvents. The challenges involve the production of a large quantity of graphene sheets with tailored distribution in thickness, size, and shape. In this review, we present some of the recent efforts towards the controlled production of graphene in dispersions. We also describe some of the chemical protocols that have provided insight into the vast organic chemistry of the single atomic plane of graphite. Controlled chemical reactions applied to graphene are expected to significantly improve the design of hierarchical, functional platforms, driving the inclusion of graphene into advanced functional materials forward.

scholarly journals Influence of expanded graphite (EG) and graphene oxide (GO) on physical properties of PET based nanocomposites

2014 ◽  
Vol 16 (4) ◽  
pp. 45-50 ◽  
Author(s):  
Sandra Paszkiewicz ◽  
Małgorzata Nachman ◽  
Anna Szymczyk ◽  
Zdeno Špitalský ◽  
Jaroslav Mosnáček ◽  
...  
Keyword(s):  
Physical Properties ◽  
In Situ Polymerization ◽  
Crystallization Rate ◽  
Expanded Graphite ◽  
Exfoliated Graphene ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Agglomeration Of Nanoparticles ◽  
Graphite Sheets

Abstract This work is the continuation and refinement of already published communications based on PET/EG nanocomposites prepared by in situ polymerization1, 2. In this study, nanocomposites based on poly(ethylene terephthalate) with expanded graphite were compared to those with functionalized graphite sheets (GO). The results suggest that the degree of dispersion of nanoparticles in the PET matrix has important effect on the structure and physical properties of the nanocomposites. The existence of graphene sheets nanoparticles enhances the crystallization rate of PET. It has been confirmed that in situ polymerization is the effective method for preparation nanocomposites which can avoid the agglomeration of nanoparticles in polymer matrices and improve the interfacial interaction between nanofiller and polymer matrix. The obtained results have shown also that due to the presence of functional groups on GO surface the interactions with PET matrix can be stronger than in the case of exfoliated graphene (EG) and matrix.

Hybridization of graphene sheets with polyethylene terephthalate through the process of in situ polymerization aided by ultrasound

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 18413-18418 ◽  
Author(s):  
Pablo González Morones ◽  
Salvador Fernández Tavizón ◽  
Ernesto Hernández Hernández ◽  
Carlos Alberto Gallardo Vega ◽  
Arxel De León Santillán
Keyword(s):  
Polyethylene Terephthalate ◽  
In Situ Polymerization ◽  
Graphene Sheets

A new methodology to prepare hybrid graphene–polyethylenterephthalate nanocomposites by ultrasonication is reported.

Sign in / Sign up

Export Citation Format

Share Document