Large-scale graphene production by ultrasound-assisted exfoliation of natural graphite in supercritical CO2/H2O medium
详细信息 查看全文
- 作者：Hanyang Gaoa ; b ; Kunxu Zhua ; Guoxin Hua ; hugx@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Chen Xuea
- 关键词：Graphene ; Supercritical CO2 ; Ultrasound-assisted exfoliation ; Large-scale production
- 刊名：Chemical Engineering Journal
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：308
- 期：Complete
- 页码：872-879
- 全文大小：2279 K
文摘
- •
High pressure ultrasound and supercritical CO2 were combined to exfoliate graphene.
- •
Graphene was produced by using only natural graphite, CO2, H2O and ethanol.
- •
Production process takes only a few hours.
- •
Graphene yield was more than 50%, with 93% of products being ⩽3 layers.
- •
The quality and concentration of as-prepared graphene suspensions were high.