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

ABSTRACT: 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 NaNO₃-free Hummers method by partly replacing KMnO₄ with K₂FeO₄ and controlling the amount of concentrated sulfuric acid. As compared to the existing NaNO₃-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.

SUBMITTER: Yu H

PROVIDER: S-EPMC5093679 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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

Yu Huitao H Zhang Bangwen B Bulin Chaoke C Li Ruihong R Xing Ruiguang R

Scientific reports 20161103

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 NaNO3-free Hummers method by partly replacing KMnO4 with K2FeO4 and controlling the amount of concentrated sulfuric acid. As compared to the existing NaNO3-free Hummers methods, this improved routine greatly ...[more]

PMID: 27808164

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