Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 46, Pages 39777-39784Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b14678
Keywords
laser-induced reduction; reduced graphene oxide; supercapacitor; EDLC; laser
Funding
- R&D Convergence Program of MSIT (Ministry of Science and ICT)
- NST (National Research Council of Science & Technology) of the Republic of Korea [CAP-13-02-ETRI]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Korea government (MSIT) [NRF-2015R1C1A1A01052523]
- Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) - Korea government (MSIT) [NRF-2016M3A7B4910532]
Ask authors/readers for more resources
Supercapacitors are irreplaceable energy-storage devices for high power output and rapid charge/discharge of electrical energy. In this study, the laser-based fabrication of reduced graphene oxide (rGO) electrodes for supercapacitors is demonstrated with several new features of laser irradiation. A conventional CO2 laser irradiation system is equipped with (1) a nitrogen blower to avoid combustion of the GO paper, (2) a cylindrical lens for producing a wide line beam, and (3) an optical chopper system for generating an intensity-modulated laser beam. Scanning of the intensity-modulated line beam transforms an extended area of GO into chemically reduced and physically porous graphene. The effects of the laser beam modifications and scanning parameters on the electrochemical performance of the rGO electrode are investigated. The rGO electrode exhibits a high specific capacitance (up to similar to 130 F/g) at a current density of 1 A/g. This work can serve as a reference for the process optimization of laser-induced GO reduction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available