학술논문
Surface functionalization of vertical graphene significantly enhances the energy storage capability for symmetric supercapacitors
Document Type
Article
Author
Source
In Carbon 5 January 2024 216
Subject
Language
ISSN
0008-6223
Abstract
Highlights •Electrochemical oxidation method can significantly increase the functional groups on the surface of VG.•The hydrophilicity and additional pseudocapacitance are generated on surface-functionalized VG.•The optimized oxygen functional groups of VG surface can improve capacitance.•The symmetric SC shows excellent energy density (138.3 μWh/cm2), long-term cycle stability (84 %) and voltage of 1.8 V.