High-efficient Synthesis of Graphene Oxide Based on Improved Hummers Method

As an important precursor and derivate of graphene, graphene oxide (GO) has received wide attention in recent years. However, the synthesis of GO in an economical and efficient way remains a great challenge. Here we reported an improved NaNO 3 -free Hummers method by partly replacing KMnO 4 with K 2...

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Bibliographic Details
Published in:Scientific reports 2016-11, Vol.6 (1), p.36143-36143, Article 36143
Main Authors: Yu, Huitao, Zhang, Bangwen, Bulin, Chaoke, Li, Ruihong, Xing, Ruiguang
Format: Article
Language:English
Subjects:
140/133
140/146
639/301/357/918
639/925/918/1055
Humanities and Social Sciences
multidisciplinary
Science
Sulfuric acid
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Summary:As an important precursor and derivate of graphene, graphene oxide (GO) has received wide attention in recent years. However, the synthesis of GO in an economical and efficient way remains a great challenge. Here we reported an improved NaNO 3 -free Hummers method by partly replacing KMnO 4 with K 2 FeO 4 and controlling the amount of concentrated sulfuric acid. As compared to the existing NaNO 3 -free Hummers methods, this improved routine greatly reduces the reactant consumption while keeps a high yield. The obtained GO was characterized by various techniques, and its derived graphene aerogel was demonstrated as high-performance supercapacitor electrodes. This improved synthesis shows good prospects for scalable production and applications of GO and its derivatives.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep36143