Lobiak, Egor V., Bulusheva, Lyubov G., Fedorovskaya, Ekaterina O., Shubin, Yury V., Plyusnin, Pavel E., Lonchambon, Pierre, Senkovskiy, Boris V. ORCID: 0000-0003-1443-6780, Ismagilov, Zinfer R., Flahaut, Emmanuel and Okotrub, Alexander V. (2017). One-step chemical vapor deposition synthesis and supercapacitor performance of nitrogen-doped porous carbon-carbon nanotube hybrids. Beilstein J. Nanotechnol., 8. S. 2669 - 2680. FRANKFURT AM MAIN: BEILSTEIN-INSTITUT. ISSN 2190-4286

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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: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Lobiak, Egor V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bulusheva, Lyubov G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fedorovskaya, Ekaterina O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shubin, Yury V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Plyusnin, Pavel E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lonchambon, PierreUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Senkovskiy, Boris V.UNSPECIFIEDorcid.org/0000-0003-1443-6780UNSPECIFIED
Ismagilov, Zinfer R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Flahaut, EmmanuelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Okotrub, Alexander V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-207947
DOI: 10.3762/bjnano.8.267
Journal or Publication Title: Beilstein J. Nanotechnol.
Volume: 8
Page Range: S. 2669 - 2680
Date: 2017
Publisher: BEILSTEIN-INSTITUT
Place of Publication: FRANKFURT AM MAIN
ISSN: 2190-4286
Language: English
Faculty: Faculty of Mathematics and Natural Sciences
Divisions: Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics II
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
LITHIUM-SULFUR BATTERIES; RAY PHOTOELECTRON-SPECTROSCOPY; ELECTROCHEMICAL CAPACITORS; N-2 MOLECULES; ION BATTERIES; GRAPHENE; TEMPERATURE; OXIDE; NANOPARTICLES; NANOMATERIALSMultiple languages
Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, AppliedMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/20794

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