Dielectric Barrier Plasma Discharge Exsolution of Nanoparticles at Room Temperature and Atmospheric Pressure

Atta ul Haq; Fiorenza Fanelli; Leonidas Bekris; Alex Martinez Martin; Steve Lee; Hessan Khalid; Cristian D. Savaniu; Kalliopi Kousi; Ian S. Metcalfe; John T. S. Irvine; Paul Maguire; Evangelos I. Papaioannou; Davide Mariotti

doi:10.1002/advs.202402235

Dielectric Barrier Plasma Discharge Exsolution of Nanoparticles at Room Temperature and Atmospheric Pressure

Atta ul Haq, Fiorenza Fanelli, Leonidas Bekris, Alex Martinez Martin, Steve Lee, Hessan Khalid, Cristian D. Savaniu, Kalliopi Kousi, Ian S. Metcalfe, John T. S. Irvine, Paul Maguire, Evangelos I. Papaioannou, Davide Mariotti

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Abstract

Exsolution of metal nanoparticles (NPs) on perovskite oxides has been demonstrated as a reliable strategy for producing catalyst‐support systems. Conventional exsolution requires high temperatures for long periods of time, limiting the selection of support materials. Plasma direct exsolution is reported at room temperature and atmospheric pressure of Ni NPs from a model A‐site deficient perovskite oxide (La0.43Ca0.37Ni0.06Ti0.94O2.955). Plasma exsolution is carried out within minutes (up to 15 min) using a dielectric barrier discharge configuration both with He‐only gas as well as with He/H2 gas mixtures, yielding small NPs (

Original language	English
Article number	2402235
Pages (from-to)	1-15
Number of pages	16
Journal	Advanced Science
Volume	11
Issue number	34
Early online date	4 Jul 2024
DOIs	https://doi.org/10.1002/advs.202402235
Publication status	Published online - 4 Jul 2024

Bibliographical note

Data Access Statement

This paper is accompanied by representative samples of experimental data and the relevant numerical tabulated raw data is available from Ulster University’s Research Portal at https://doi.org/10.15129/e2e11901-92c4-4b2e-a83e-ff25052e972a. Detailed procedures explaining how these representative samples were selected, and how these experiments can be repeated, are provided in the corresponding sections of this paper. Additional results and raw data underlying this work are available in the Supporting Information or on request following instructions provided at https://doi.org/10.15129/e2e11901-92c4-4b2e-a83e-ff25052e972a

Keywords

plasma
exsolution
catalysis
perovskites
Ni nanoparticles

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10.1002/advs.202402235

advs.202402235.pdfFinal published version, 6.54 MBLicence: CC BY

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ul Haq, A., Fanelli, F., Bekris, L., Martin, A. M., Lee, S., Khalid, H., Savaniu, C. D., Kousi, K., Metcalfe, I. S., Irvine, J. T. S., Maguire, P., Papaioannou, E. I., & Mariotti, D. (2024). Dielectric Barrier Plasma Discharge Exsolution of Nanoparticles at Room Temperature and Atmospheric Pressure. Advanced Science, 11(34), 1-15. Article 2402235. Advance online publication. https://doi.org/10.1002/advs.202402235

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abstract = "Exsolution of metal nanoparticles (NPs) on perovskite oxides has been demonstrated as a reliable strategy for producing catalyst‐support systems. Conventional exsolution requires high temperatures for long periods of time, limiting the selection of support materials. Plasma direct exsolution is reported at room temperature and atmospheric pressure of Ni NPs from a model A‐site deficient perovskite oxide (La0.43Ca0.37Ni0.06Ti0.94O2.955). Plasma exsolution is carried out within minutes (up to 15 min) using a dielectric barrier discharge configuration both with He‐only gas as well as with He/H2 gas mixtures, yielding small NPs (",

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AU - ul Haq, Atta

AU - Fanelli, Fiorenza

AU - Bekris, Leonidas

AU - Martin, Alex Martinez

AU - Lee, Steve

AU - Khalid, Hessan

AU - Savaniu, Cristian D.

AU - Kousi, Kalliopi

AU - Metcalfe, Ian S.

AU - Irvine, John T. S.

AU - Maguire, Paul

AU - Papaioannou, Evangelos I.

AU - Mariotti, Davide

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AB - Exsolution of metal nanoparticles (NPs) on perovskite oxides has been demonstrated as a reliable strategy for producing catalyst‐support systems. Conventional exsolution requires high temperatures for long periods of time, limiting the selection of support materials. Plasma direct exsolution is reported at room temperature and atmospheric pressure of Ni NPs from a model A‐site deficient perovskite oxide (La0.43Ca0.37Ni0.06Ti0.94O2.955). Plasma exsolution is carried out within minutes (up to 15 min) using a dielectric barrier discharge configuration both with He‐only gas as well as with He/H2 gas mixtures, yielding small NPs (

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Dielectric Barrier Plasma Discharge Exsolution of Nanoparticles at Room Temperature and Atmospheric Pressure

Abstract

Bibliographical note

Data Access Statement

Keywords

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