Process Conditions of Exfoliated Single-Layer Graphite

Cheng Yang; Tian Yu Zhao; Li Juan Sun; Hong Song Song; Da Bo Liu

doi:10.4028/www.scientific.net/AMR.430-432.350

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 430-432Process Conditions of Exfoliated Single-Layer...

Process Conditions of Exfoliated Single-Layer Graphite

Abstract:

The graphite was exfoliated by concentrated acid treatment, strong oxidants oxidation, high temperature rapid thermal shock process. Investigated in detail that the kind of oxidants, concentrated acid ratio, oxidation time affected on the graphite expansion rate. Experimental results (expansion, micro-structure observation and chemical structure analysis of graphite) showed that the optimum volume ratio of concentrated sulfuric acid and concentrated nitric acid was 4:1; the expansion rate was better that added oxidant KMnO₄ than added oxidant K₂Cr₂O₇; The best oxidation time (concentrated acid treatment time) was 30~60 min.

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Periodical:

Advanced Materials Research (Volumes 430-432)

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350-354

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.430-432.350

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Online since:

January 2012

Authors:

Cheng Yang, Tian Yu Zhao, Li Juan Sun, Hong Song Song, Da Bo Liu

Keywords:

Exfoliated, Process Conditions, Single-Layer Graphite

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