Facile synthesis and supercapacitor performances of nitrogen doped CNTs grown over mesoporous Fe/SBA-15 catalyst

2017 ◽  
Vol 41 (20) ◽  
pp. 11591-11599 ◽  
Author(s):  
R. Ragavan ◽  
A. Pandurangan

Herein, we report a new strategy to synthesize high-yield nitrogen-doped carbon nanotubes (NCNTs) using iron-supported SBA-15 as a catalystviathe chemical vapour deposition (CVD) method to utilize them as an electrode material for supercapacitors.

RSC Advances ◽  
2016 ◽  
Vol 6 (80) ◽  
pp. 76773-76779 ◽  
Author(s):  
Lerato Hlekelele ◽  
Paul J. Franklyn ◽  
Pranav K. Tripathi ◽  
Shane H. Durbach

CVD of melamine over waste coal fly ash to form N-doped carbon nanotubes (NCNTs) of various morphologies and crystallinities as a function of temperature and % N incorporation.


2015 ◽  
Vol 1109 ◽  
pp. 365-369 ◽  
Author(s):  
I. Nurulhuda ◽  
R. Poh ◽  
Mat Zain Mazatulikhma ◽  
Mohammad Rusop

Carbon nanotubes (CNT) has been synthesized by pyrolysing fermented tapioca liquid using an immersed heater. It was made single-walled carbon nanotubes (SWCNT) through heating at 700, 800 and 900 °C by the chemical vapour deposition (CVD) method and characterized by using Raman spectroscopy, thermogravimetric analysis and field emission scanning electron microscopy (FESEM). The synthesized SWCNT demonstrated larger diameters at 700 °C which decreased at 800 and 900 °C, respectively. The SWCNTs were indicated based on the radial breathing mode (RBM) peak present between 200 - 300 raman shift (cm-1). The diameters of synthesized CNTs ranged between 54 - 200 nm. Raman spectrum revealed that the G-bands were 1569, 1582 and 1576 cm-1, respectively, whereas the D-bands were 1346, 1350 and 1358 cm-1 for SWCNT synthesis at 700, 800 and 900 °C, respectively. The modified CVD method set up in the present study was successfully used for large scale synthesis of CNTs from an aqueous precursor such as fermented tapioca liquid.


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