Synthesis and reduction of large sized graphene oxide sheets,Chemical Society Reviews

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Synthesis and reduction of large sized graphene oxide sheets
Chemical Society Reviews ( IF 40.4 ) Pub Date : 2017-10-20 00:00:00 , DOI: 10.1039/c7cs00485k
Lei Dong _{1,

2,

3} , Jieun Yang _{4,

5,

6,

7,

8} , Manish Chhowalla _{4,

5,

6,

7,

8} , Kian Ping Loh _{1,

2,

3}

Affiliation

Graphene oxide (GO) can be considered as one of the most visible outcomes of graphene research in terms of large scale production and commercialization prospects. Although GO can be easily prepared by oxidation–exfoliation of graphite in agitated solutions, the size of these sheets is generally limited due to fragmentation along fault lines during chemical oxidation and exfoliation in agitated solutions. In this account, we discuss recent strategies which have been developed for the preparation of large sized graphene oxide (LGO) sheets with lateral sizes >10 μm, using chemically expanded graphite as the starting material. LGO has a much lower density of defects than GO prepared using the conventional Hummers’ method and can be readily transformed into graphene by chemical reduction. In addition, the unique advantages of using LGO sheets as a performance enhancer are discussed. Finally, this review also discusses recent advances in the chemical and electrochemical reduction of graphene oxide.

中文翻译：

大型氧化石墨烯片的合成与还原

就大规模生产和商业化前景而言，氧化石墨烯（GO）可以被认为是石墨烯研究最明显的成果之一。尽管可以通过在搅拌溶液中氧化剥落石墨来轻松制备GO，但由于在搅拌溶液中化学氧化和剥落过程中沿着断层线破裂，因此这些薄片的尺寸通常受到限制。因此，我们讨论了使用化学膨胀石墨作为起始原料开发的用于制备横向尺寸大于10μm的大型氧化石墨烯（LGO）片材的最新策略。LGO的缺陷密度比使用常规Hummers方法制备的GO低得多，并且可以通过化学还原容易地转化为石墨烯。此外，讨论了使用LGO薄板作为性能增强剂的独特优势。最后，本综述还讨论了氧化石墨烯的化学和电化学还原方面的最新进展。

更新日期：2017-10-20

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