A process to enhance the specific surface area and capacitance of hydrothermally reduced graphene oxide

被引：105

作者：

Alazmi, Amira ^{[1
]}

El Tall, Omar ^{[2
]}

Rasul, Shahid ^{[1
]}

Hedhili, Mohamed N. ^{[3
]}

Patole, Shashikant P. ^{[1
]}

Costa, Pedro M. F. J. ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia

[2] King Abdullah Univ Sci & Technol KAUST, Analyt Core Lab, Thuwal 239556900, Saudi Arabia

[3] King Abdullah Univ Sci & Technol KAUST, Imaging & Characterizat Lab, Thuwal 239556900, Saudi Arabia

来源：

NANOSCALE | 2016年 / 8卷 / 41期

关键词：

PERFORMANCE; REDUCTION; GRAPHITE; ANODE; FABRICATION; COMPOSITES;

D O I：

10.1039/c6nr04426c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The impact of post-synthesis processing in reduced graphene oxide materials for supercapacitor electrodes has been analyzed. A comparative study of vacuum, freeze and critical point drying was carried out for hydrothermally reduced graphene oxide demonstrating that the optimization of the specific surface area and preservation of the porous network are critical to maximize its supercapacitance performance. As described below, using a supercritical fluid as the drying medium, unprecedented values of the specific surface area (364 m(2) g(-1)) and supercapacitance (441 F g(-1)) for this class of materials have been achieved.

引用

页码：17782 / 17787

页数：6

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