Flexible reduced graphene oxide supercapacitor fabricated using a nitrogen dc-pulse atmospheric-pressure plasma jet
Journal
Material Research Express
Journal Volume
4
Journal Issue
2
Pages
2409-2420
Date Issued
2017
Author(s)
C.-H. Yang
F.-H. Kuok
C.-Y.-Liao
T.-H. Wan
C.-W. Chen
C.-C. Hsu
I-C. Cheng
J.-Z. Chen
Abstract
We use a nitrogen DC-pulse atmospheric-pressure plasma jet to fabricate a flexible reduced graphene oxide (rGO) supercapacitor with polyvinyl alcohol (PVA)/sulfuric acid (H2SO4) gel electrolyte. An areal capacitance of 47.03 mF · cm-2 (evaluated using cyclic voltammetry (CV) under a potential scan rate of 2 mV ·s-1) is achieved. The supercapacitor can be operated without apparent degradation under bending with a bending radius of 0.55 cm. After a 1000 cycle CV stability test, the capacitance retention rate is 100% when flat and is 98.6% under bending (bending radius = 0.55 cm), indicating promising stability of the APPJ-processed flexible supercapacitor.
SDGs
Type
journal article