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

Abstract

We report a new strategy to synthesize high yield nitrogen doped carbon nanotubes (NCNT) using iron supported SBA-15 catalyst by chemical vapour deposition (CVD) method to utilize an electrode material for supercapacitor application. A group of Fe/SBA-15 catalysts having different weigh percentage of iron (2, 4, 6, 8 and 10 wt.%) were prepared and optimized for producing high yield (280%) of NCNT. Consequently, a series of NCNT have been synthesized by varying synthesis temperatures ranging from 700 to 1000°C using optimized catalyst. The cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge (GCD) were conducted to evaluate the capacitance behaviour of NCNT in 1M H2SO4 solution. Significantly, NCNT synthesized at low temperature possess the nitrogen content of about 15.79 at% and provides a high specific capacitance of 295 Fg-1 at 0.5 Ag-1 of current density. The results reveal that the NCNT grown over Fe/SBA-15 could be a suitable candidate for supercapacitor application.

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Publication details

The article was received on 10 Mar 2017, accepted on 09 Aug 2017 and first published on 09 Aug 2017


Article type: Paper
DOI: 10.1039/C7NJ00804J
Citation: New J. Chem., 2017, Accepted Manuscript
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    Facile synthesis and supercapacitor performances of nitrogen doped CNT grown over mesoporous Fe/SBA-15 catalyst

    A. Pandurangan and R. Rajamanickam, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ00804J

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