Full graphitization of amorphous carbon by microwave heating

被引：84

作者：

Kim, Teawon ^{[1
]}

Lee, Jaegeun ^{[2
]}

Lee, Kun-Hong ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, 77 Cheongam Ro, Pohang 790784, Gyeongbuk, South Korea

[2] Korea Inst Sci & Technol, Carbon Convergence Mat Res Ctr, Eunha Ri San 101, Wanju Gun 565905, Jeollabuk Do, South Korea

来源：

RSC ADVANCES | 2016年 / 6卷 / 29期

基金：

新加坡国家研究基金会;

关键词：

ACTIVE CARBONS; CATALYTIC GRAPHITIZATION; EXFOLIATED GRAPHITE; GRAPHENE; INTERCALATION; PITCH; CARBONIZATION; DECOMPOSITION; REGENERATION; ENHANCEMENT;

D O I：

10.1039/c6ra01989g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Natural graphite is labelled as a supply riskmaterial due to rapidly increasing demand and limited reserves. The conventional method for the production of synthetic graphite has relied on the thermal heating at an extremely high temperature, 3000 degrees C, and long processing time, typically 2 weeks. Here, we report a novel and efficient method of graphitization using microwave heating with metal catalysts. The amorphous carbon powders turned into crystalline graphite in 5 minutes. Ideas for the scale-up of this work were proposed. In addition, numerical analysis revealed that the Maxwell-Wagner-Sillars polarization is inadequate for the mechanism underlying the microwave heating of solid carbon materials.

引用

页码：24667 / 24674

页数：8

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