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One-step chemical vapor deposition synthesis and supercapacitor performance of nitrogen-doped porous carbon–carbon nanotube hybrids

Lobiak, Egor V. and Bulusheva, Lyubov Gennadievna and Fedorovskaya, Ekaterina O. and Shubin, Yury V. and Plyusnin, Pavel E. and Lonchambon, Pierre and Senkovskiy, Boris V. and Ismagilov, Zinfer R. and Flahaut, Emmanuel and Okotrub, Alexander Vladimirovich One-step chemical vapor deposition synthesis and supercapacitor performance of nitrogen-doped porous carbon–carbon nanotube hybrids. (2017) Beilstein Journal of Nanotechnology, 8. 2669-2679. ISSN 2190-4286

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Official URL: http://dx.doi.org/10.3762/bjnano.8.267

Abstract

Novel nitrogen-doped carbon hybrid materials consisting of multiwalled nanotubes and porous graphitic layers have been produced by chemical vapor deposition over magnesium-oxide-supported metal catalysts. CNx nanotubes were grown on Co/Mo, Ni/Mo, or Fe/Mo alloy nanoparticles, and MgO grains served as a template for the porous carbon. The simultaneous formation of morphologically different carbon structures was due to the slow activation of catalysts for the nanotube growth in a carbon-containing gas environment. An analysis of the obtained products by means of transmission electron microscopy, thermogravimetry and X-ray photoelectron spectroscopy methods revealed that the catalyst's composition influences the nanotube/porous carbon ratio and concentration of incorporated nitrogen. The hybrid materials were tested as electrodes in a 1M H2SO4 electrolyte and the best performance was found for a nitrogen-enriched material produced using the Fe/Mo catalyst. From the electrochemical impedance spectroscopy data, it was concluded that the nitrogen doping reduces the resistance at the carbon surface/electrolyte interface and the nanotubes permeating the porous carbon provide fast charge transport in the cell.

Item Type:Article
Additional Information:Thanks to Beilstein-Institut editor. The original PDF of the article can be found at https://www.beilstein-journals.org/bjnano/articles/8/267
HAL Id:hal-01729379
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Novosibirsk State University (RUSSIA)
Other partners > Siberian Branch of the Russian Academy of Sciences - SB RAS (RUSSIA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Saint Petersburg State University - SPBU (RUSSIA)
Other partners > Universität zu Köln (GERMANY)
Laboratory name:
Funders:
Russian Foundation for Basic Research - PRC CNRS/RFBR - RFBR
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Deposited By: cirimat webmestre
Deposited On:12 Mar 2018 14:49

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