Nitrogen- and oxygen-doped multi-walled carbon nanotubes for supercapacitor with ionic liquid-based electrolyte

2020 ◽  
Vol 13 (04) ◽  
pp. 2040002
Author(s):  
Ekaterina A. Arkhipova ◽  
Alina S. Viktorova ◽  
Anton S. Ivanov ◽  
Konstantin I. Maslakov ◽  
Roman Yu. Novotortsev
Keyword(s):  
Carbon Nanotubes ◽  
Cyclic Voltammetry ◽  
Ionic Liquid ◽  
Electronic Structure ◽  
Nitrogen Doping ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte ◽  
Nitrogen Doped ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Nitrogen-doped multi-walled carbon nanotubes (CNTs) containing 2.2 at.% of nitrogen were produced by hydrothermal treatment of oxygen-doped CNTs with urea and tested as electrode material for the supercapacitor with ionic liquid electrolyte. Cyclic voltammetry measurements showed a beneficial effect of nitrogen doping on the capacitance behavior of CNTs resulted from both the changes in their electronic structure and improved interaction between the electrode surface and electrolyte ions. The specific capacitance of nitrogen-doped CNTs was 2.6 times higher than that of pristine ones.

Enhancing 5 V capacitor performance by adding single walled carbon nanotubes into an ionic liquid electrolyte

2015 ◽  
Vol 3 (31) ◽  
pp. 15858-15862 ◽  
Author(s):  
Chuiyan Kong ◽  
Weizhong Qian ◽  
Chao Zheng ◽  
Wei Fei
Keyword(s):  
Carbon Nanotubes ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Energy Density ◽  
Power Density ◽  
Single Walled Carbon Nanotubes ◽  
Liquid Electrolyte ◽  
Ionic Liquid Electrolyte ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

A nanofluid electrolyte of single walled carbon nanotubes and ionic liquids enhances the energy density, power density and cycling stability of nanotube electrodes at 5 V.

Rigid Polyurethane Foam with Ionic Liquid Modified Multi Walled Carbon Nanotubes Composites

2016 ◽  
Vol 857 ◽  
pp. 159-163
Author(s):  
A.A. Sinar ◽  
Z. Firuz ◽  
A.Z. Nur Hidayah ◽  
Md Akil Hazizan ◽  
H.A. Sahrim
Keyword(s):  
Carbon Nanotubes ◽  
Compressive Strength ◽  
Ionic Liquid ◽  
Rigid Polyurethane Foam ◽  
Average Cell Size ◽  
Average Cell ◽  
Pu Foam ◽  
Methylene Diphenyl Diisocyanate ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The rigid polyurethane (PU) were produced using ionic liquid (IL) modified multi walled carbon nanotubes (MWCNTs) by reaction of palm oil based polyol (POP) with methylene diphenyl diisocyanate (MDI). The 1-butyl-3-methylimidazolium tetrafluoborate (BMIMBF4) used as IL to disperse MWCNTs in PU foam by grinding in ratio 1:3 by weight of MWCNTs to IL till black paste were obtained. The effects of different percentage of modified MWCNTs (0.0 - 3.0 %) on Polyurethane / Multi Walled Carbon Nanotubes / Ionic Liquid (PMI) foam composites were evaluated in density, morphology and compressive strength. The density were increased higher 0.0538 kg / m3 at 3.0 % PMI. The average cell size value higher without addition modified MWCNTs and scanning electron microscopy (SEM) showed inhomogenously structure with addition of modified MWCNTs. Compressive strength with 0.5 % PMI showed the highest value 1.671 MPa compared to other PMI.

Synthesis of outer tube-selectively nitrogen-doped double-walled carbon nanotubes by nitrogen plasma treatment

Nanoscale ◽  
2018 ◽  
Vol 10 (34) ◽  
pp. 15938-15942 ◽  
Author(s):  
Hiroyuki Muramatsu ◽  
Masahiro Takahashi ◽  
Cheon-Soo Kang ◽  
Jin Hee Kim ◽  
Yoong Ahm Kim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Plasma Treatment ◽  
Nitrogen Doping ◽  
Nitrogen Plasma ◽  
Outer Tube ◽  
Nitrogen Doped ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The selective nitrogen doping of the outer tubes of double walled carbon nanotubes was demonstrated.

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