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首页> 外文期刊>Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology >A dehydration and stabilizer-free approach to production of stable water dispersions of graphene nanosheets
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A dehydration and stabilizer-free approach to production of stable water dispersions of graphene nanosheets

机译：一种无脱水和无稳定剂的方法来生产稳定的石墨烯纳米片水分散体

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摘要

Graphene has received great attention because of its exceptional properties and formidable potential in various applications. A practical approach to the production of processable graphene sheets in large quantities at low cost is the key to exploiting most proposed applications. Here we show a dehydration and stabilizer-free method for facile and cost-effective production of water dispersions of graphene nanosheets with concentrations up to 0.05 mg mL~(-1) using concentrated sulfuric acid or phosphoric acid as the dehydrating and intercalating reagent. The unique opto-electronic properties of graphene could be chemically engineered without losing the macroscopic structure integrity. The self-assembly properties of as-prepared graphene nanosheets in aqueous solution and at the air/water interface offer great flexibility for a wide range of applications.
机译：石墨烯因其卓越的性能和在各种应用中的巨大潜力而​​受到了广泛的关注。以低成本大量生产可加工石墨烯片的实用方法是开发大多数建议应用的关键。在此我们展示了一种使用无水和无稳定剂的方法，该方法使用浓硫酸或磷酸作为脱水和嵌入试剂，可方便且经济高效地生产浓度高达0.05 mg mL〜（-1）的石墨烯纳米片水分散体。可以化学工程化石墨烯的独特光电性能，而不会失去宏观结构的完整性。制备的石墨烯纳米片在水溶液中和在空气/水界面处的自组装性能为广泛的应用提供了极大的灵活性。

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