Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Control over the Surface Properties of Zinc Oxide Powders via Combining Mechanical, Electron Beam, and Thermal Processing. / Pronin, Igor A.; Averin, Igor A.; Karmanov, Andrey A.; Yakushova, Nadezhda D.; Komolov, Alexey S.; Lazneva, Eleonora F.; Sychev, Maxim M.; Moshnikov, Vyacheslav A.; Korotcenkov, Ghenadii.
в: Nanomaterials, Том 12, № 11, 1924, 04.06.2022.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Control over the Surface Properties of Zinc Oxide Powders via Combining Mechanical, Electron Beam, and Thermal Processing
AU - Pronin, Igor A.
AU - Averin, Igor A.
AU - Karmanov, Andrey A.
AU - Yakushova, Nadezhda D.
AU - Komolov, Alexey S.
AU - Lazneva, Eleonora F.
AU - Sychev, Maxim M.
AU - Moshnikov, Vyacheslav A.
AU - Korotcenkov, Ghenadii
N1 - Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/6/4
Y1 - 2022/6/4
N2 - The surface properties of zinc oxide powders prepared using mechanical activation, electron beam irradiation, and vacuum annealing, as well using combinations of these types of treatments, were studied using X-ray photoelectron spectroscopy. The structure of the obtained materials was studied by an X-ray diffraction technique and by scanning electron microscopy. We found that over five hours of grinding in an attritor, the size of nanocrystals decreases from 37 to 21 nm, and microdeformations increase from 0.3% to 0.6%. It was also found that a five-hour grinding treatment promoted formation of vacancies in the zinc sublattice at the surface and diffusion of Zn2+ cations into the bulk of the material. Irradiation of commercial zinc oxide powders with an electron beam with an energy of 0.9 MeV and a dose of 1 MGy induced breaking of Zn–O bonds, diffusion of interstitial zinc ions into the bulk, and oxygen atom escape from regular positions into the gas phase. A combined treatment of five hours of grinding and electron beam irradiation promoted accumulation of interstitial zinc ions at the surface of the material. Annealing of both initial and mechanically activated ZnO powders at temperatures up to 400 °C did not lead to a significant change in the properties of the samples. Upon exceeding the 400 °C annealing temperature the X-ray photoelectron spectra show almost identical atomic composition of the two types of materials, which is related to diffusion of interstitial zinc ions from the bulk of the material to the surface.
AB - The surface properties of zinc oxide powders prepared using mechanical activation, electron beam irradiation, and vacuum annealing, as well using combinations of these types of treatments, were studied using X-ray photoelectron spectroscopy. The structure of the obtained materials was studied by an X-ray diffraction technique and by scanning electron microscopy. We found that over five hours of grinding in an attritor, the size of nanocrystals decreases from 37 to 21 nm, and microdeformations increase from 0.3% to 0.6%. It was also found that a five-hour grinding treatment promoted formation of vacancies in the zinc sublattice at the surface and diffusion of Zn2+ cations into the bulk of the material. Irradiation of commercial zinc oxide powders with an electron beam with an energy of 0.9 MeV and a dose of 1 MGy induced breaking of Zn–O bonds, diffusion of interstitial zinc ions into the bulk, and oxygen atom escape from regular positions into the gas phase. A combined treatment of five hours of grinding and electron beam irradiation promoted accumulation of interstitial zinc ions at the surface of the material. Annealing of both initial and mechanically activated ZnO powders at temperatures up to 400 °C did not lead to a significant change in the properties of the samples. Upon exceeding the 400 °C annealing temperature the X-ray photoelectron spectra show almost identical atomic composition of the two types of materials, which is related to diffusion of interstitial zinc ions from the bulk of the material to the surface.
KW - electron beam (e-beam) irradiation
KW - surface
KW - X-ray photoelectron spectroscopy
KW - zinc oxide
UR - http://www.scopus.com/inward/record.url?scp=85131182940&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/cc7b4d80-4f77-3557-92a9-b68b5ea075fe/
U2 - 10.3390/nano12111924
DO - 10.3390/nano12111924
M3 - Article
AN - SCOPUS:85131182940
VL - 12
JO - Nanomaterials
JF - Nanomaterials
SN - 2079-4991
IS - 11
M1 - 1924
ER -
ID: 96947841