Formation mechanism of MgO hollow nanospheres via calcination of C-MgO composite produced by electric arc spraying

Dmitry V. Smovzh; Salavat Z. Sakhapov; Alexey V. Zaikovskii; Svetlana A. Chernova; Sergey A. Novopashin

doi:10.1016/j.ceramint.2019.01.017

Formation mechanism of MgO hollow nanospheres via calcination of C-MgO composite produced by electric arc spraying

Dmitry V. Smovzh, Salavat Z. Sakhapov, Alexey V. Zaikovskii, Svetlana A. Chernova, Sergey A. Novopashin

Кафедра общей физики ФФ

Результат исследования: Научные публикации в периодических изданиях › статья

3 Цитирования (Scopus)

Аннотация

Spherical MgO nanoparticles were obtained using the method of electric arc spraying of the Mg-C composite electrode, followed by calcination in air. The composition and morphology of nanostructures, formed at spraying, were studied; kinetics of changes in the elemental composition of the carbon-magnesium composite was investigated at annealing in the range of up to 900 °C. It is shown that during arc spraying, core-shell nanoparticles are formed with a carbon core and shell enriched with magnesium nanoparticles, which are oxidized to MgO at contact with the atmosphere. When carbon-magnesium composites are annealed, carbon burns out; the morphology of magnesium oxide nanoparticles is a 250-nm sphere of magnesium crystals of 20–30 nm in size.

Язык оригинала	английский
Страницы (с-по)	7338-7343
Число страниц	6
Журнал	Ceramics International
Том	45
Номер выпуска	6
DOI	https://doi.org/10.1016/j.ceramint.2019.01.017
Состояние	Опубликовано - 15 апр 2019

Доступ к документу

10.1016/j.ceramint.2019.01.017

Link to publication in Scopus

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Цитировать

Smovzh, D. V., Sakhapov, S. Z., Zaikovskii, A. V., Chernova, S. A., & Novopashin, S. A. (2019). Formation mechanism of MgO hollow nanospheres via calcination of C-MgO composite produced by electric arc spraying. Ceramics International, 45(6), 7338-7343. https://doi.org/10.1016/j.ceramint.2019.01.017

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title = "Formation mechanism of MgO hollow nanospheres via calcination of C-MgO composite produced by electric arc spraying",

abstract = "Spherical MgO nanoparticles were obtained using the method of electric arc spraying of the Mg-C composite electrode, followed by calcination in air. The composition and morphology of nanostructures, formed at spraying, were studied; kinetics of changes in the elemental composition of the carbon-magnesium composite was investigated at annealing in the range of up to 900 °C. It is shown that during arc spraying, core-shell nanoparticles are formed with a carbon core and shell enriched with magnesium nanoparticles, which are oxidized to MgO at contact with the atmosphere. When carbon-magnesium composites are annealed, carbon burns out; the morphology of magnesium oxide nanoparticles is a 250-nm sphere of magnesium crystals of 20–30 nm in size.",

keywords = "Arc discharge, Calcination, Condensation, MgO, Nanoceramics, Nucleation, Powders, PERFORMANCE, ADSORBENTS, GRAPHENE, NANOCRYSTALLINE MAGNESIUM-OXIDE, NANOSTRUCTURES, CO2 CAPTURE, NANOPARTICLES, REFRACTORIES, RAPID SYNTHESIS, MORPHOLOGY",

author = "Smovzh, {Dmitry V.} and Sakhapov, {Salavat Z.} and Zaikovskii, {Alexey V.} and Chernova, {Svetlana A.} and Novopashin, {Sergey A.}",

year = "2019",

month = apr,

day = "15",

doi = "10.1016/j.ceramint.2019.01.017",

language = "English",

volume = "45",

pages = "7338--7343",

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number = "6",

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Formation mechanism of MgO hollow nanospheres via calcination of C-MgO composite produced by electric arc spraying. / Smovzh, Dmitry V.; Sakhapov, Salavat Z.; Zaikovskii, Alexey V.; Chernova, Svetlana A.; Novopashin, Sergey A.

В: Ceramics International, Том 45, № 6, 15.04.2019, стр. 7338-7343.

Результат исследования: Научные публикации в периодических изданиях › статья

TY - JOUR

T1 - Formation mechanism of MgO hollow nanospheres via calcination of C-MgO composite produced by electric arc spraying

AU - Smovzh, Dmitry V.

AU - Sakhapov, Salavat Z.

AU - Zaikovskii, Alexey V.

AU - Chernova, Svetlana A.

AU - Novopashin, Sergey A.

PY - 2019/4/15

Y1 - 2019/4/15

N2 - Spherical MgO nanoparticles were obtained using the method of electric arc spraying of the Mg-C composite electrode, followed by calcination in air. The composition and morphology of nanostructures, formed at spraying, were studied; kinetics of changes in the elemental composition of the carbon-magnesium composite was investigated at annealing in the range of up to 900 °C. It is shown that during arc spraying, core-shell nanoparticles are formed with a carbon core and shell enriched with magnesium nanoparticles, which are oxidized to MgO at contact with the atmosphere. When carbon-magnesium composites are annealed, carbon burns out; the morphology of magnesium oxide nanoparticles is a 250-nm sphere of magnesium crystals of 20–30 nm in size.

AB - Spherical MgO nanoparticles were obtained using the method of electric arc spraying of the Mg-C composite electrode, followed by calcination in air. The composition and morphology of nanostructures, formed at spraying, were studied; kinetics of changes in the elemental composition of the carbon-magnesium composite was investigated at annealing in the range of up to 900 °C. It is shown that during arc spraying, core-shell nanoparticles are formed with a carbon core and shell enriched with magnesium nanoparticles, which are oxidized to MgO at contact with the atmosphere. When carbon-magnesium composites are annealed, carbon burns out; the morphology of magnesium oxide nanoparticles is a 250-nm sphere of magnesium crystals of 20–30 nm in size.

KW - Arc discharge

KW - Calcination

KW - Condensation

KW - MgO

KW - Nanoceramics

KW - Nucleation

KW - Powders

KW - PERFORMANCE

KW - ADSORBENTS

KW - GRAPHENE

KW - NANOCRYSTALLINE MAGNESIUM-OXIDE

KW - NANOSTRUCTURES

KW - CO2 CAPTURE

KW - NANOPARTICLES

KW - REFRACTORIES

KW - RAPID SYNTHESIS

KW - MORPHOLOGY

UR - http://www.scopus.com/inward/record.url?scp=85060230697&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2019.01.017

DO - 10.1016/j.ceramint.2019.01.017

M3 - Article

AN - SCOPUS:85060230697

VL - 45

SP - 7338

EP - 7343

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 6

ER -