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 o

SUBMITTER: Yu H 

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

REPOSITORIES: biostudies-literature