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Large-scale and rapid synthesis of disk-shaped and nano-sized graphene

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Open access
Authors
He, C.
Jiang, San Ping
Shen, P.
Date
2013
Type
Journal Article

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He, Chunyong and Jiang, San Ping and Shen, Pei Kang. 2013. Large-scale and rapid synthesis of disk-shaped and nano-sized graphene. Scientific Reports. 3 (Article 2144).
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Scientific Reports
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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.

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Abstract

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.