Nitrogen-doped graphene/carbon nanohorns composite as a high-performance supercapacitor electrode. Issue 11 (November 2017)

• Record Type: Journal Article
• Authors: Lin, Xiao-Qiang; Wang, Wen-Dong; Lü, Qiu-Feng; Jin, Yan-Qiao; Lin, Qilang; Liu, Rui
• Is Part Of: Journal of materials science & technology. Volume 33:Issue 11(2017:Nov.)
• Page Start: 1339
• Page End: 1345
• Publication Date: 2017-11
• Subjects: Nitrogen-doped graphene -- Carbon nanohorns -- Spacer -- Supercapacitor -- High-performance; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2017.06.006
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract: Nitrogen-doped graphene/carbon nanohorns composite (NGLC) was prepared by one-step co-pyrolysis of graphene oxide, carbon nanohorns (CNHs), urea, and lignosulfonate. CNHs as spacers were inserted into graphene nanosheets. The introduction of CNHs and the loosened nano-structure of NGLC make it achieve a high specific capacitance of 363 F g −1 at a discharge current density of 1 A g −1, and NGLC exhibits an ultrahigh stability of 93.5% capacitance retention ratio after 5000 cycles. The outstanding comprehensive electrochemical performance of NGLC could meet the need of the future acted as an efficient supercapacitor electrode material.