Standard

Laser vaporized CrOx/Al2O3 nanopowders as a catalyst for isobutane dehydrogenation. / Kostyukov, Anton I.; Baronskiy, Mark G.; Larina, Tatyana V. et al.

In: Materials Characterization, Vol. 169, 110664, 11.2020.

Research output: Contribution to journal › Article › peer-review

Harvard

Kostyukov, AI, Baronskiy, MG, Larina, TV, Snytnikov, VN, Zaitseva, NA, Pochtar, AA, Ishchenko, AV, Cherepanova, SV & Snytnikov, VN 2020, 'Laser vaporized CrOx/Al2O3 nanopowders as a catalyst for isobutane dehydrogenation', Materials Characterization, vol. 169, 110664. https://doi.org/10.1016/j.matchar.2020.110664

APA

Kostyukov, A. I., Baronskiy, M. G., Larina, T. V., Snytnikov, V. N., Zaitseva, N. A., Pochtar, A. A., Ishchenko, A. V., Cherepanova, S. V., & Snytnikov, V. N. (2020). Laser vaporized CrOx/Al2O3 nanopowders as a catalyst for isobutane dehydrogenation. Materials Characterization, 169, [110664]. https://doi.org/10.1016/j.matchar.2020.110664

Vancouver

Kostyukov AI, Baronskiy MG, Larina TV, Snytnikov VN, Zaitseva NA, Pochtar AA et al. Laser vaporized CrOx/Al2O3 nanopowders as a catalyst for isobutane dehydrogenation. Materials Characterization. 2020 Nov;169:110664. doi: 10.1016/j.matchar.2020.110664

Author

Kostyukov, Anton I. ; Baronskiy, Mark G. ; Larina, Tatyana V. et al. / Laser vaporized CrOx/Al2O3 nanopowders as a catalyst for isobutane dehydrogenation. In: Materials Characterization. 2020 ; Vol. 169.

BibTeX

@article{5dfebc16064b470b8d4043d90b8e8943,
title = "Laser vaporized CrOx/Al2O3 nanopowders as a catalyst for isobutane dehydrogenation",
abstract = "Laser vaporized xCr/Al2O3 nanopowders with the particle size of ca. 15 nm were studied by XRF, EDX, HRTEM, XRD, DD, BET, TGA, UV–Vis DRS, Raman and PL spectroscopy methods as a catalytic system in dehydrogenation of isobutane. The nanopowders were found to contain not only the Cr6+ ions located on the surface of nanoparticles, but also two different types of Cr3+ sites as components of the γ-Al2O3 solid solution. One type consists of the bulk Cr3+b sites in a strong crystal field. Another type is represented by the Cr3+s sites residing near the surface of xCr/Al2O3 nanoparticles. Such sites are in a weak crystal field. It was shown that catalytic activity of the nanostructured xCr/Al2O3 system is provided by the high content of surface Cr3+s sites. The results obtained make it possible to propose the nanopowders obtained by laser synthesis as a promising catalytic system that can be used in the development of highly active catalysts for dehydrogenation of alkanes with the decreased chromium content.",
keywords = "CO-laser vaporization, Cr species, CrO/AlO catalysts, Isobutane dehydrogenation, Nanopowder, PHOTOLUMINESCENCE, RAMAN-SPECTROSCOPY, PROPANE, DIFFUSE-REFLECTANCE SPECTROSCOPY, ALUMINA, CrOx/Al2O3 catalysts, CHROMIUM-OXIDE CATALYSTS, NANOPARTICLES, REDUCTION, CO2-laser vaporization, Crn+ species, OPTICAL SPECTROSCOPY, AL2O3",
author = "Kostyukov, {Anton I.} and Baronskiy, {Mark G.} and Larina, {Tatyana V.} and Snytnikov, {Valeriy N.} and Zaitseva, {Nadezhda A.} and Pochtar, {Alena A.} and Ishchenko, {Arcady V.} and Cherepanova, {Svetlana V.} and Snytnikov, {Valeriy N.}",
year = "2020",
month = nov,
doi = "10.1016/j.matchar.2020.110664",
language = "English",
volume = "169",
journal = "Materials Characterization",
issn = "1044-5803",
publisher = "Elsevier Science Inc.",

}

RIS

TY - JOUR

T1 - Laser vaporized CrOx/Al2O3 nanopowders as a catalyst for isobutane dehydrogenation

AU - Kostyukov, Anton I.

AU - Baronskiy, Mark G.

AU - Larina, Tatyana V.

AU - Snytnikov, Valeriy N.

AU - Zaitseva, Nadezhda A.

AU - Pochtar, Alena A.

AU - Ishchenko, Arcady V.

AU - Cherepanova, Svetlana V.

AU - Snytnikov, Valeriy N.

PY - 2020/11

Y1 - 2020/11

N2 - Laser vaporized xCr/Al2O3 nanopowders with the particle size of ca. 15 nm were studied by XRF, EDX, HRTEM, XRD, DD, BET, TGA, UV–Vis DRS, Raman and PL spectroscopy methods as a catalytic system in dehydrogenation of isobutane. The nanopowders were found to contain not only the Cr6+ ions located on the surface of nanoparticles, but also two different types of Cr3+ sites as components of the γ-Al2O3 solid solution. One type consists of the bulk Cr3+b sites in a strong crystal field. Another type is represented by the Cr3+s sites residing near the surface of xCr/Al2O3 nanoparticles. Such sites are in a weak crystal field. It was shown that catalytic activity of the nanostructured xCr/Al2O3 system is provided by the high content of surface Cr3+s sites. The results obtained make it possible to propose the nanopowders obtained by laser synthesis as a promising catalytic system that can be used in the development of highly active catalysts for dehydrogenation of alkanes with the decreased chromium content.

AB - Laser vaporized xCr/Al2O3 nanopowders with the particle size of ca. 15 nm were studied by XRF, EDX, HRTEM, XRD, DD, BET, TGA, UV–Vis DRS, Raman and PL spectroscopy methods as a catalytic system in dehydrogenation of isobutane. The nanopowders were found to contain not only the Cr6+ ions located on the surface of nanoparticles, but also two different types of Cr3+ sites as components of the γ-Al2O3 solid solution. One type consists of the bulk Cr3+b sites in a strong crystal field. Another type is represented by the Cr3+s sites residing near the surface of xCr/Al2O3 nanoparticles. Such sites are in a weak crystal field. It was shown that catalytic activity of the nanostructured xCr/Al2O3 system is provided by the high content of surface Cr3+s sites. The results obtained make it possible to propose the nanopowders obtained by laser synthesis as a promising catalytic system that can be used in the development of highly active catalysts for dehydrogenation of alkanes with the decreased chromium content.

KW - CO-laser vaporization

KW - Cr species

KW - CrO/AlO catalysts

KW - Isobutane dehydrogenation

KW - Nanopowder

KW - PHOTOLUMINESCENCE

KW - RAMAN-SPECTROSCOPY

KW - PROPANE

KW - DIFFUSE-REFLECTANCE SPECTROSCOPY

KW - ALUMINA

KW - CrOx/Al2O3 catalysts

KW - CHROMIUM-OXIDE CATALYSTS

KW - NANOPARTICLES

KW - REDUCTION

KW - CO2-laser vaporization

KW - Crn+ species

KW - OPTICAL SPECTROSCOPY

KW - AL2O3

UR - http://www.scopus.com/inward/record.url?scp=85092001328&partnerID=8YFLogxK

U2 - 10.1016/j.matchar.2020.110664

DO - 10.1016/j.matchar.2020.110664

M3 - Article

AN - SCOPUS:85092001328

VL - 169

JO - Materials Characterization

JF - Materials Characterization

SN - 1044-5803

M1 - 110664

ER -

ID: 25654181