Microwave N2-Ar plasmas applied for N-graphene post synthesis
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2018
Authors
Bundaleska, NeliBundaleski, Nenad
Dias, Ana Paula Soares
Dias, Francisco M.
Abrashev, Miroslav
Filipič, Gregor
Cvelbar, Uroš
Rakočević, Zlatko Lj.
Kissovski, Zhivko
Henriques, Julio A. P.
Tatarova, Elena
Article (Published version)
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© 2018 IOP Publishing Ltd
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High level of nitrogen doping (∼25%) of free-standing graphene sheets was achieved using the remote region of a Ar-N2 microwave plasmas. The relation between the percentage of nitrogen in the plasma and the characteristics of the treated samples has been investigated. Structural changes, being mainly created at the surface of graphene, increase significantly with the percentage of nitrogen in the gas mixture. For a mixture containing 5% of N2 about 2.7 at. % of nitrogen was incorporated in the form of imide group and graphitic bonds (70%), and as N bound to sp3 carbon (30%). Increasing the nitrogen amount to 40% results in the production of samples with up to 25% of incorporated nitrogen. Formation of new types of carbon-nitride structures has also been observed. Detailed x-ray Photoelectron Spectroscopy and Transmission Electron Microscopy analysis support the hypothesis that a structure similar to β-C3N4 has been synthesized. © 2018 IOP Publishing Ltd.
Keywords:
N-graphene / microwave plasma / carbon nitrides / post synthesisSource:
Materials Research Express, 2018, 5, 9, 095605-Funding / projects:
- Functional, Functionalized and Advanced Nanomaterials (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
- European Union's Horizon research and innovation programme [766894]
- FCT-Fundação para a Ciência e a Tecnologia [UID/FIS/50010/2013]
- FCT-Fundação para a Ciência e a Tecnologia [INCENTIVO/FIS/LA0010/2014]
- FCT-Fundação para a Ciência e a Tecnologia [SFRH/BD/52413/2013 (PD-F APPLAuSE)]
DOI: 10.1088/2053-1591/aad7e9
ISSN: 2053-1591
WoS: 000441827300002
Scopus: 2-s2.0-85052332764
URI
http://stacks.iop.org/2053-1591/5/i=9/a=095605?key=crossref.65533764fea7bf832c2dd9637c21d5f1https://vinar.vin.bg.ac.rs/handle/123456789/7855
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VinčaTY - JOUR AU - Bundaleska, Neli AU - Bundaleski, Nenad AU - Dias, Ana Paula Soares AU - Dias, Francisco M. AU - Abrashev, Miroslav AU - Filipič, Gregor AU - Cvelbar, Uroš AU - Rakočević, Zlatko Lj. AU - Kissovski, Zhivko AU - Henriques, Julio A. P. AU - Tatarova, Elena PY - 2018 UR - http://stacks.iop.org/2053-1591/5/i=9/a=095605?key=crossref.65533764fea7bf832c2dd9637c21d5f1 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7855 AB - High level of nitrogen doping (∼25%) of free-standing graphene sheets was achieved using the remote region of a Ar-N2 microwave plasmas. The relation between the percentage of nitrogen in the plasma and the characteristics of the treated samples has been investigated. Structural changes, being mainly created at the surface of graphene, increase significantly with the percentage of nitrogen in the gas mixture. For a mixture containing 5% of N2 about 2.7 at. % of nitrogen was incorporated in the form of imide group and graphitic bonds (70%), and as N bound to sp3 carbon (30%). Increasing the nitrogen amount to 40% results in the production of samples with up to 25% of incorporated nitrogen. Formation of new types of carbon-nitride structures has also been observed. Detailed x-ray Photoelectron Spectroscopy and Transmission Electron Microscopy analysis support the hypothesis that a structure similar to β-C3N4 has been synthesized. © 2018 IOP Publishing Ltd. T2 - Materials Research Express T1 - Microwave N2-Ar plasmas applied for N-graphene post synthesis VL - 5 IS - 9 SP - 095605 DO - 10.1088/2053-1591/aad7e9 ER -
@article{ author = "Bundaleska, Neli and Bundaleski, Nenad and Dias, Ana Paula Soares and Dias, Francisco M. and Abrashev, Miroslav and Filipič, Gregor and Cvelbar, Uroš and Rakočević, Zlatko Lj. and Kissovski, Zhivko and Henriques, Julio A. P. and Tatarova, Elena", year = "2018", abstract = "High level of nitrogen doping (∼25%) of free-standing graphene sheets was achieved using the remote region of a Ar-N2 microwave plasmas. The relation between the percentage of nitrogen in the plasma and the characteristics of the treated samples has been investigated. Structural changes, being mainly created at the surface of graphene, increase significantly with the percentage of nitrogen in the gas mixture. For a mixture containing 5% of N2 about 2.7 at. % of nitrogen was incorporated in the form of imide group and graphitic bonds (70%), and as N bound to sp3 carbon (30%). Increasing the nitrogen amount to 40% results in the production of samples with up to 25% of incorporated nitrogen. Formation of new types of carbon-nitride structures has also been observed. Detailed x-ray Photoelectron Spectroscopy and Transmission Electron Microscopy analysis support the hypothesis that a structure similar to β-C3N4 has been synthesized. © 2018 IOP Publishing Ltd.", journal = "Materials Research Express", title = "Microwave N2-Ar plasmas applied for N-graphene post synthesis", volume = "5", number = "9", pages = "095605", doi = "10.1088/2053-1591/aad7e9" }
Bundaleska, N., Bundaleski, N., Dias, A. P. S., Dias, F. M., Abrashev, M., Filipič, G., Cvelbar, U., Rakočević, Z. Lj., Kissovski, Z., Henriques, J. A. P.,& Tatarova, E.. (2018). Microwave N2-Ar plasmas applied for N-graphene post synthesis. in Materials Research Express, 5(9), 095605. https://doi.org/10.1088/2053-1591/aad7e9
Bundaleska N, Bundaleski N, Dias APS, Dias FM, Abrashev M, Filipič G, Cvelbar U, Rakočević ZL, Kissovski Z, Henriques JAP, Tatarova E. Microwave N2-Ar plasmas applied for N-graphene post synthesis. in Materials Research Express. 2018;5(9):095605. doi:10.1088/2053-1591/aad7e9 .
Bundaleska, Neli, Bundaleski, Nenad, Dias, Ana Paula Soares, Dias, Francisco M., Abrashev, Miroslav, Filipič, Gregor, Cvelbar, Uroš, Rakočević, Zlatko Lj., Kissovski, Zhivko, Henriques, Julio A. P., Tatarova, Elena, "Microwave N2-Ar plasmas applied for N-graphene post synthesis" in Materials Research Express, 5, no. 9 (2018):095605, https://doi.org/10.1088/2053-1591/aad7e9 . .