插层(化学)
石墨烯
石墨
剥脱关节
材料科学
脱落石墨纳米血小板
石墨层间化合物
硫酸
化学工程
复合材料
纳米技术
无机化学
化学
冶金
工程类
作者
Jung-Chul An,Eun Jung Lee,Ikpyo Hong
标识
DOI:10.1016/j.jiec.2016.12.017
摘要
Artificially spheroidized natural graphite (SNG) was processed to obtain expanded graphite and graphene nanoplatelets using GIC (graphite intercalation compound)-assisted exfoliation process. Sulfuric acid and hydrogen peroxide were used as the intercalant and oxidant for the GIC formation, respectively. SNG was successfully converted into both expanded graphite and graphene nanoplatelets. Degree of exfoliation of the produced graphene nanoplatelets was found to be proportional to the average diameter of starting materials. Graphene nanoplatelets prepared from SNG with average diameter of 50 μm were analyzed to have the averaged lateral size of 45.4 μm at the thickness of ca. 5 nm.
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