Nickel skeleton three-dimensional nitrogen doped graphene nanosheets/nanoscrolls as promising supercapacitor electrodes. (16th August 2017)

• Record Type: Journal Article
• Authors: Wang, Faze; Zheng, Maojun; Ma, Liguo; Li, Qiang; Song, Jingnan; You, Yuxiu; Ma, Li; Shen, Wenzhong
• Is Part Of: Nanotechnology. Volume 28:Number 36(2017)
• Publication Date: 2017-08-16
• Subjects: nickel skeleton -- three-dimensional -- EDA -- graphene nanoscrolls -- supercapacitor; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/aa79e4
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: A novel nickel skeleton 3D nitrogen doped graphene (N-GR/NF) superstructure with interconnected graphene nanosheets and nanoscrolls was synthesized using a facile two-step method. By varying the precursor concentration, the assembly of a graphene aerogel can be easily regulated, yielding different micro-structures and morphologies which accelerate the fast electron/ion transportation. The N-GR/NF composites demonstrate enhanced capacitance of 250 F g −1 at 5 A g −1, good rate performance (237 F g −1 at the current density of 12 A g −1 ) and cycle stability (90.9% retention after 5000 cycles) in 1 M KOH electrolyte. This study provides a new strategy for the microporous engineering of graphene gel, promising for further exploitation in various other applications.