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Single-step ambient-air synthesis of graphene from renewable precursors as electrochemical genosensor

zhpd55 添加于 2017/2/16 11:34:26  178次阅读 | 0次推荐 | 0个评论

Thermal chemical vapour deposition techniques for graphene fabrication, while promising, are thus far limited by resource-consuming and energy-intensive principles. In particular, purified gases and extensive vacuum processing are necessary for creating a highly controlled environment, isolated from ambient air, to enable the growth of graphene films. Here we exploit the ambient-air environment to enable the growth of graphene films, without the need for compressed gases. A renewable natural precursor, soybean oil, is transformed into continuous graphene films, composed of single-to-few layers, in a single step. The enabling parameters for controlled synthesis and tailored properties of the graphene film are discussed, and a mechanism for the ambient-air growth is proposed. Furthermore, the functionality of the graphene is demonstrated through direct utilization as an electrode to realize an effective electrochemical genosensor. Our method is applicable to other types of renewable precursors and may open a new avenue for low-cost synthesis of graphene films.

作 者:Dong Han Seo, Shafique Pineda, Jinghua Fang, Yesim Gozukara, Samuel Yick, Avi Bendavid, Simon Kwai Hung Lam, Adrian T. Murdock, Anthony B. Murphy, Zhao Jun Han & Kostya (Ken) Ostrikov
期刊名称: Nature Communications 8,
期卷页: Published online: 30 January 2017 第8卷 第期 14217页
学科领域:化学科学 » 无机化学 » 无机合成和制备化学
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原文链接:http://www.nature.com/articles/ncomms14217
DOI: 10.1038/ncomms14217
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