The reduction of graphene oxide
The reduction of graphene oxide
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DOI：
10.1016/j.carbon.2011.11.010
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发表时间：
2012-08-01
期刊：
影响因子：
10.9
通讯作者：
Cheng, Hui-Ming
中科院分区：
文献类型：
--
作者：
Pei, Songfeng;Cheng, Hui-Ming
石墨烯以其优异的机械、电学、热学和光学性能引起了人们的极大兴趣。它可以通过高度有序的热解石墨的微机械剥落、外延生长、化学气相沉积和氧化石墨烯（GO）的还原来生产。前三种方法可以生产出结构相对完善、性能优异的石墨烯，而相比之下，氧化石墨烯有两个重要的特点：(1)以价格低廉的石墨为原料，采用经济高效的化学方法，产率高；(2)亲水性强，通过简单廉价的溶液工艺，可形成稳定的水性胶体，便于宏观结构的组装，这两点对石墨烯的大规模应用具有重要意义。氧化石墨烯的还原是氧化石墨烯研究和应用的一个关键问题，还原可以部分恢复石墨烯的结构和性能。不同的还原工艺导致还原氧化石墨烯（rGO）的性质不同，从而影响由rGO组成的材料或器件的最终性能。在这篇文章中，我们回顾了在技术和机制上还原氧化石墨烯的最新状况。这一领域的发展将加速石墨烯的应用。(C) 2011 Elsevier Ltd.版权所有。
Graphene has attracted great interest for its excellent mechanical, electrical, thermal and optical properties. It can be produced by micro-mechanical exfoliation of highly ordered pyrolytic graphite, epitaxial growth, chemical vapor deposition, and the reduction of graphene oxide (GO). The first three methods can produce graphene with a relatively perfect structure and excellent properties, while in comparison, GO has two important characteristics: (1) it can be produced using inexpensive graphite as raw material by cost-effective chemical methods with a high yield, and (2) it is highly hydrophilic and can form stable aqueous colloids to facilitate the assembly of macroscopic structures by simple and cheap solution processes, both of which are important to the large-scale uses of graphene. A key topic in the research and applications of GO is the reduction, which partly restores the structure and properties of graphene. Different reduction processes result in different properties of reduced GO (rGO), which in turn affect the final performance of materials or devices composed of rGO. In this contribution, we review the state-of-art status of the reduction of GO on both techniques and mechanisms. The development in this field will speed the applications of graphene. (C) 2011 Elsevier Ltd. All rights reserved.