نتایج جستجو برای: exfoliated graphite

تعداد نتایج: 17137  

Journal: :ACS nano 2011
Wan Li Cen Tan Michael A Lowe Héctor D Abruña Daniel C Ralph

We report on the fabrication and measurement of devices designed to study the electrochemical behavior of individual monolayer graphene sheets as electrodes. We have examined both mechanically exfoliated and chemical vapor deposited (CVD) graphene. The effective device areas, determined from cyclic voltammetric measurements, show good agreement with the geometric area of the graphene sheets, in...

2014
Ming Huang Yuxin Zhang Fei Li Zhongchang Wang Alamusi Ning Hu Zhiyu Wen Qing Liu

Fabricating hierarchical core-shell nanostructures is currently the subject of intensive research in the electrochemical field owing to the hopes it raises for making efficient electrodes for high-performance supercapacitors. Here, we develop a simple and cost-effective approach to prepare CuO@MnO2 core-shell nanostructures without any surfactants and report their applications as electrodes for...

2015
Dae Yool Jung Sang Yoon Yang Hamin Park Woo Cheol Shin Joong Gun Oh Byung Jin Cho Sung-Yool Choi

A decade after the discovery of graphene flakes, exfoliated from graphite, we have now secured large scale and high quality graphene film growth technology via a chemical vapor deposition (CVD) method. With the establishment of mass production of graphene using CVD, practical applications of graphene to electronic devices have gained an enormous amount of attention. However, several issues aris...

2015
Jakub Tolasz Petr Vomáčka Václav Štengl

Titanium(IV) oxide graphene [1] or graphene oxide nano composite [2] were prepared by one-pot thermal hydrolysis of suspension graphene or graphene oxide nanosheets and titanium oxide in three different forms as a starting materials. Graphene nanosheets were produced in a large quantity from natural graphite using a high intensity cavitation field in a pressurized ultrasonic reactor [3]. The gr...

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