Preparation of expandable graphite with ultrasound irradiation

被引：40

作者：

Li, Jihui ^{[1
]}

Li, Jing ^{[1
]}

Li, Mei ^{[1
]}

机构：

[1] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050016, Peoples R China

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 28期

关键词：

electron microscopy; multilayer structure; porosity; x-ray techniques;

D O I：

10.1016/j.matlet.2007.04.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article reports a new way to prepare expandable graphite with ultrasound irradiation. Flake graphite mixture and ultrasonic solvent were placed into a flask in the ultrasonic cleaning bath (nominal power of 500 W and 250 W) at room temperature. Ultrasonic time kept 60 min. After ultrasound irradiation, the expandable graphite was expanded at 900 degrees C to obtain the expanded graphite. The process of ultrasound irradiation is different from both electrochemistry intercalation and chemistry oxidation intercalation, but the properties of expandable graphite are similar. X-ray diffraction patterns are used to analyze the structure and confirm that the expandable graphite has been prepared. Scanning electron microscope images show the structure of expandable graphite and the existence of expanded graphite. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：5070 / 5073

页数：4

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