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Updated: Jan 31, 2026

Synthesis and Functionalization of Nitrogen-doped Carbon Nanotube Cups with Gold Nanoparticles as Cork Stoppers
Published on: May 13, 2013
Carbon Nanotube@N-Doped Mesoporous Carbon Composite Material for Supercapacitor Electrodes
Xinyu Fu1, Aibing Chen1, Yifeng Yu1
1College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, P.R. China.
Abstract:
Here, carbon nanotube@N-doped mesoporous carbon (CNT@N-PC) composites were synthesized by using resorcinol-formaldehyde resin as carbon source, ionic liquids (ILs) as template, and nitrogen sources and tetraethyl orthosilicate (TEOS) as assistant agent. The use of ILs-modified CNT with nitrogen and TEOS facilitated the generation of a richer mesoporous structure. The obtained CNT@N-PC was composed of a CNT core and mesoporous carbon particles around it. CNT@N-PC showed a 3D network structure like "dewy cobwebs" and had a high surface area of 857 m2 g-1 , uniform pore size distribution (3.0 nm), and suitable N content (4.9 at.%). When used as supercapacitor electrode, the CNT@N-PC exhibited a high specific capacitance (244 F g-1 at 1 A g-1 ), good rate capability and favorable capacitance retention (92.5 % capacitive retention after 5000 cycles), demonstrating the potential for application in high-performance supercapacitors.
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