Effect of External Charging on Nanoparticle Formation in a Flame

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Fomenko, Elena
Altman, Igor
Agranovski, Igor E
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2021
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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.

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Materials
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© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Chemical sciences
Engineering
Science & Technology
Physical Sciences
Chemistry, Physical
Materials Science, Multidisciplinary
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Fomenko, E; Altman, I; Agranovski, IE, Effect of External Charging on Nanoparticle Formation in a Flame, Materials, 2021, 14 (11), pp. 2891
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