Atmospheric-pressure-plasma-jet processed carbon nanotube (CNT)–reduced graphene oxide (rGO) nanocomposites for gel-electrolyte supercapacitors

Content Provider	Semantic Scholar
Author	Kuok, Fei-Hong Chien, Hung-Hua Lee, Chia-Chun Hao, Yu-Chuan Yu, Ing-Song Hsu, Cheng-Che Cheng, I-Chun Chen, Junhai
Copyright Year	2018
Abstract	This study evaluates DC-pulse nitrogen atmospheric-pressure-plasma-jet processed carbon nanotube (CNT)–reduced graphene oxide (rGO) nanocomposites for gel-electrolyte supercapacitor applications. X-ray photoelectron spectroscopy (XPS) indicates decreased oxygen content (mainly, C–O bonding content) after nitrogen APPJ processing owing to the oxidation and vaporization of ethyl cellulose. Nitrogen APPJ processing introduces nitrogen doping and improves the hydrophilicity of the CNT–rGO nanocomposites. Raman analysis indicates that nitrogen APPJ processing introduces defects and/or surface functional groups on the nanocomposites. The processed CNT–rGO nanocomposites on carbon cloth are applied to the electrodes of H2SO4–polyvinyl alcohol (PVA) gel-electrolyte supercapacitors. The best achieved specific (areal) capacitance is 93.1 F g−1 (9.1 mF cm−2) with 15 s APPJ-processed CNT–rGO nanocomposite electrodes, as evaluated by cyclic voltammetry under a potential scan rate of 2 mV s−1. The addition of rGOs in CNTs in the nanoporous electrodes improves the supercapacitor performance.
Starting Page	2851
Ending Page	2857
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1039/C7RA12108C
Volume Number	8
Alternate Webpage(s)	https://pubs.rsc.org/en/content/articlepdf/2018/ra/c7ra12108c
Alternate Webpage(s)	https://doi.org/10.1039/C7RA12108C
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article