| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
| 권호 |
20권 2호, p.1705 |
| 발표분야 |
에너지 |
| 제목 |
Facile synthesis of three-dimensional graphene/nickel oxide nanoparticles composites for high performance supercapacitor |
| 초록 |
This study presents a simple and facile method for preparing three-dimensional (3D) porous reduced graphene oxide (rGO) and NiO nanoparticles composites (3D-RGNi) as high performance supercapacitor electrodes. The 3D porous graphene framework is first produced by the self-assembly of poly(methyl methacrylate) (PMMA) particles and graphene oxide (GO), followed the adsorption of Ni precursor on GO. High-temperature treatment is simultaneously carried out to fabricate the 3D porous structured rGO decorated with NiO nanoparticles. The as-synthesized 3D-RGNi electrode exhibits a high specific capacitance of 1351 F∙g-1 at a current density of 1 A∙g-1 and an excellent cycling stability with 94.5% retention of the capacitance after 500 cycles of galvanostatic charge-discharge. These high capacitance performances are attributed to the synergistic effects from the incorporation of the rGO network and NiO nanoparticles, and the highly porous structure of 3D-RGNi. Hence, it is expected that 3D-RGNi might serve as a promising materials for electrochemical energy storage applications. |
| 저자 |
Tran Van Tam, Nguyen Bao Trung, 최원묵
|
| 소속 |
울산대 |
| 키워드 |
graphene; supercapacitor
|
| E-Mail |
|
| 원문파일 |
초록 보기 |
