Properties and preparation of an HClO4 -CrO3 -Graphite intercalation compound

被引：0
|
作者：
Zhou Ming-shan [2 ]
Liu Li-mei [2 ]
Li Cheng-jun [1 ]
Tao Yong [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Peoples R China
[2] Yunnan Radio & TV Univ, Sch Chem Engn, Kunming 650023, Peoples R China
来源：
NEW CARBON MATERIALS | 2010年 / 25卷 / 05期
关键词：
Graphite intercalation compound; Expansion volume; Expanded graphite; Chemical oxidation;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A graphite intercalation compound (GIC) was prepared by the chemical oxidation method using natural graphite flakes, CrO3 and HClO4 as raw materials. The composition and structure of the GIC were characterized and analyzed by FTIR, XRD, TG and the effects of amount of the reactants, reaction temperature and time on the expansion volume of the GIC were investigated. Results showed that the intercalates were CIO4-, Cr2O72- and the biggest expansion volume of 555 mL.g(-1) was achieved with a weight ratio of natural graphite flakes: CrO3: HClO4 being 1: 0.3:5, a reaction temperature of 30 degrees C and reaction time of 60min. The GIC had an excellent vacuum stability and 8 mm wave attenuation ability.
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页码：389 / 394
页数：6
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