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Volume 14
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10.3390/ma14112891
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Article

Effect of External Charging on Nanoparticle Formation in a Flame

by
Elena Fomenko
1,
Igor Altman
2 and
Igor E. Agranovski
1,*
1
School of Engineering and Built Environment, Griffith University, Nathan 4111, Australia
2
Combustion Sciences and Propulsion Research Branch, Naval Air Warfare Center Weapons Division, 1 Administration Circle, China Lake, CA 93555, USA
*
Author to whom correspondence should be addressed.
Materials 2021, 14(11), 2891; https://doi.org/10.3390/ma14112891
Submission received: 6 April 2021 / Revised: 7 May 2021 / Accepted: 26 May 2021 / Published: 28 May 2021
(This article belongs to the Special Issue Flame Synthesis and Characterization of Oxide Nanoparticles)
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Abstract

This paper attempts to demonstrate the importance of the nanoparticle charge in the synthesis flame, for the mechanism of their evolution during formation processes. An investigation was made of MgO nanoparticles formed during combustion of magnesium particles. The cubic shape of nanoparticles in an unaffected flame allows for direct interpretation of results on the external flame charging, using a continuous unipolar emission of ions. It was found that the emission of negative ions applied to the flame strongly affects the nanoparticle shape, while the positive ions do not lead to any noticeable change. The demonstrated effect emphasizes the need to take into account all of the phenomena responsible for the particle charge when modeling the nanoparticle formation in flames.
Keywords: MgO nanoparticle; combustion synthesis; external particle charging MgO nanoparticle; combustion synthesis; external particle charging

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MDPI and ACS Style

Fomenko, E.; Altman, I.; Agranovski, I.E. Effect of External Charging on Nanoparticle Formation in a Flame. Materials 2021, 14, 2891. https://doi.org/10.3390/ma14112891

AMA Style

Fomenko E, Altman I, Agranovski IE. Effect of External Charging on Nanoparticle Formation in a Flame. Materials. 2021; 14(11):2891. https://doi.org/10.3390/ma14112891

Chicago/Turabian Style

Fomenko, Elena, Igor Altman, and Igor E. Agranovski. 2021. "Effect of External Charging on Nanoparticle Formation in a Flame" Materials 14, no. 11: 2891. https://doi.org/10.3390/ma14112891

APA Style

Fomenko, E., Altman, I., & Agranovski, I. E. (2021). Effect of External Charging on Nanoparticle Formation in a Flame. Materials, 14(11), 2891. https://doi.org/10.3390/ma14112891

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