Preparation of nitrate-H2SO4-graphite intercalation compounds by a two-step intercalation method

被引：0

作者：

Han Zhi-dong ^{[1
]}

Du Peng ^{[1
]}

Dong Li-min ^{[1
]}

Zhang Xian-you ^{[1
]}

机构：

[1] Harbin Univ Sci & Technol, Dept Mat Sci & Engn, Harbin 150040, Peoples R China

来源：

NEW CARBON MATERIALS | 2009年 / 24卷 / 04期

基金：

黑龙江省自然科学基金; 中国国家自然科学基金;

关键词：

Two-step intercalation method; GIC; Nitric acid; Sulfuric acid; GRAPHITE-INTERCALATION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ternary graphite intercalation compounds (GICs), nitrate/nitric acid-sulfuric acid-GICs, were prepared by a two-step method. Their structure was characterized by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray spectroscopy. Results showed that the two-step method favored the formation of lower stage-GICs by promoting the intercalation of nitrate or nitric acid and enlarging the interlayer spacing. The expanded GICs, whose expansion volume can reach 450 mL/g, showed obvious graphite layers and a uniform porous structure. The two-step method had many advantages compared with the direct intercalation method, such as safety in operation, less pollution during experiments and case of industrial scale-up.

引用

页码：379 / 382

页数：4

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