Microwave-assisted fabrication of slight-expanded graphite under normal temperature

被引：13

作者：

Liu, Zhen-Xue ^{[1
]}

Zhang, Xiao-Wen ^{[1
]}

Zhang, Wan-Jia ^{[2
]}

Wei, Xiao-Xuan ^{[1
]}

Liang, Peng ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Shandong, Peoples R China

[2] Cent S Univ, Coll Resource Proc & Biol Engn, Changsha, Hunan, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2020年 / 36卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Slight-expanded graphite; microwave irradiation; lamellar structure; natural flake graphite; scanning electron microscope; x-ray diffraction; nomal temperature; curled-up structure; EXFOLIATED GRAPHITE; OIL; ADSORPTION; REMOVAL;

D O I：

10.1080/02670836.2019.1693730

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Different from traditional expanded graphite, novel slight-expanded graphite with only four times expansion was produced. The preparation method presented here includes an improved Hummers method to change the natural flake graphite to graphite oxide by using lower amounts of concentrated sulfuric acid and concentrated phosphoric acid. Then, the graphite oxide is expanded via microwave irradiation instead of temperature increase. Scanning electron microscope images and X-ray diffraction patterns show that the lamellar structure of natural graphite was changed to a complex, overlapped, curled-up structure in the slight-expanded graphite.

引用

页码：251 / 254

页数：4

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