Large-scale and rapid synthesis of disk-shaped and nano-sized graphene
MetadataShow full item record
We synthesized disk-shaped and nano-sized graphene (DSNG) though a novel ion-exchange methodology. This new methodology is achieved by constructing metal ion/ion-exchange resin framework. The morphology and size of the graphene can be modulated by changing the mass ratio of the carbon-containing resin to the cobalt-containing precursor. This is the first time to show that the DSNG formed on the granular transition metal substrate. The DSNG gives a high intensity of photoluminescence at near-UV wavelength of 311 nm which may provide a new type of fluorescence for applications in laser devices, ultraviolet detector UV-shielding agent and energy technology. The emission intensity of the DSNG is thirty times higher than that of the commercial large graphene. Our approach for graphene growth is conveniently controllable, easy to scale-up and the DSNG shows superior luminescent properties as compared to conventional large graphene.
This article is published under the Open Access publishing model and distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/. Please refer to the licence to obtain terms for any further reuse or distribution of this work.
Showing items related by title, author, creator and subject.
Wang, Shaobin; Sun, Hongqi; Ang, Ha-Ming; Tade, Moses (2013)Pollution of air, water and soil is a worldwide issue for the eco-environment and human society. Removal of various pollutants including inorganic and organic compounds from the environment is a big challenge. Adsorption ...
Microwave-assisted one-pot synthesis of metal/metal oxide nanoparticles on graphene and their electrochemical applicationsWang, S.; Jiang, San Ping; Wang, X. (2011)An effective synthesis strategy of hybrid metal (PtRu)/metal oxide (SnO2) nanoparticles on graphenenanocomposites is developed using a microwave-assisted one-pot reaction process. The mixture of ethylene glycol (EG) and ...
Facile single-step preparation of Pt/N-graphene catalysts with improved methanol electrooxidation activityZhao, Y.; Zhou, Y.; Xiong, B.; Wang, J.; Chen, X.; O'Hayre, R.; Shao, Zongping (2013)In this work, we describe a facile single-step approach for the simultaneous reduction of graphene oxide to graphene, functional doping of graphene with nitrogen, and loading of the doped graphene with well-dispersed ...