Segmental nitrogen doping and carboxyl functionalization of multi-walled carbon nanotubes

Taking Fe/NaY zeolite as catalysts, a range of nitrogen doped carbon nanotubes (N-CNTs) were synthesized by chemical vapor deposition method (CVD) at 1073K using ethanediamine, dimithylethanediamine and tetramethyl ethanediamine as nitrogen source and carbon source, respectively. The structural and compositional properties of N-CNTs were characterized by XRD, SEM and TEM. The results illustrate the microstructure of N-CNTs is strongly dependent on the N/C ratio of precursors. With the increase of N content in precursors, N-CNTs became shorter, more disorder, coarser surface and the average bamboo segment distance increased from 40 nm to 60 nm. A mechanism for the formation of the N-CNTs grown from three precursors with different N/C ratio has been proposed based on experimental observations.

Download Full-text

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

Functional Materials Letters ◽

10.1142/s1793604720400020 ◽

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.

Download Full-text

Multi-walled Carbon Nanotubes Penetrate into Plant Cells and Affect the Growth of Onobrychis arenaria Seedlings

Acta Naturae ◽

10.32607/20758251-2011-3-1-99-106 ◽

2011 ◽

Vol 3 (1) ◽

pp. 99-106 ◽

Cited By ~ 22

Author(s):

E A Smirnova ◽

A A Gusev ◽

O N Zaitseva ◽

E M Lazareva ◽

G E Onishchenko ◽

...

Keyword(s):

Carbon Nanotubes ◽

Plant Cells ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

Download Full-text

Palladium(II)-Schiff base complex supported on multi-walled carbon nanotubes: A heterogeneous and reusable catalyst in the Suzuki- Miyaura and copper-free Sonogashira-Hagihara reactions

10.3390/ecsoc-17-a008 ◽

2013 ◽

Author(s):

Barahman Movassagh ◽

Mozhgan Navidi ◽

Nasrin Rezaei

Keyword(s):

Carbon Nanotubes ◽

Schiff Base ◽

Schiff Base Complex ◽

Reusable Catalyst ◽

Base Complex ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

Download Full-text

Dispersion of Relatively Long Multi-walled Carbon Nanotubes in Water using Ozone Generated by Dielectric Barrier Discharge

IEEJ Transactions on Fundamentals and Materials ◽

10.1541/ieejfms.136.180 ◽

2016 ◽

Vol 136 (4) ◽

pp. 180-185 ◽

Cited By ~ 1

Author(s):

Zaw Lin ◽

Mitsunobu Yoshida ◽

Yuki Uesugi ◽

Karthik Paneer Selvam ◽

Takeshi Nishikawa ◽

...

Keyword(s):

Carbon Nanotubes ◽

Dielectric Barrier Discharge ◽

Barrier Discharge ◽

Dielectric Barrier ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

Download Full-text

Incorporation of Multi Wall Carbon Nanotubes into Glass-Surfaces via Laser-Treatment

MRS Proceedings ◽

10.1557/proc-772-m2.8 ◽

2003 ◽

Vol 772 ◽

Cited By ~ 1

Author(s):

T. Seeger ◽

G. de la Fuente ◽

W.K. Maser ◽

A.M. Benito ◽

A. Righi ◽

...

Keyword(s):

Carbon Nanotubes ◽

Continuous Wave ◽

Silica Surface ◽

Multi Wall Carbon Nanotubes ◽

Composite Formation ◽

Multi Walled Carbon Nanotubes ◽

Glass Surfaces ◽

Walled Carbon Nanotubes ◽

First Time ◽

Scanning Electron

AbstractCarbon nanotubes (CNT) are interesting candidates for the reinforcement in robust composites and for conducting fillers in polymers due to their fascinating electronic and mechanical properties. For the first time, we report the incorporation of multi walled carbon nanotubes (MWNTs) into silica-glass surfaces by means of partial surface-melting caused by a continuous wave Nd:YAG laser. MWNTs were detected being well incorporated in the silica-surface. The composites are characterized using scanning electron microscopy (SEM) and Raman-spectroscopy. A model for the composite-formation is proposed based on heatabsorption by MWNTs and a partial melting of the silica-surface.

Download Full-text