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

Research output: Contribution to journal › Article › peer-review

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 (La_0.43Ca_0.37Ni_0.06Ti_0.94O_2.955). 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 (<30 nm diameter). To prove the practical utility of exsolved NPs, various experiments aimed at assessing their catalytic performance for methanation from synthesis gas, CO, and CH₄ oxidation are carried out. Low-temperature and atmospheric pressure plasma exsolution are successfully demonstrated and suggest that this approach could contribute to the practical deployment of exsolution-based stable catalyst systems.

Original language	English
Article number	e2402235
Number of pages	15
Journal	Advanced Science
Volume	Early View
Early online date	4 Jul 2024
DOIs	https://doi.org/10.1002/advs.202402235
Publication status	E-pub ahead of print - 4 Jul 2024

Keywords

Exsolution
Perovskites
Ni nanoparticles
Plasma
Catalysis

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Copyright © 2024 The Author(s). Advanced Science published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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Dielectric barrier plasma discharge exsolution of nanoparticles at room temperature and atmospheric pressure dataset
Haq, A. (Creator), Fanelli, F. (Creator), Bekris, L. (Creator), Lee, S. (Creator), Khalid, H. (Creator), Savaniu, C. D. (Creator), Kousi, K. (Creator), Metcalfe, I. S. (Creator), Irvine, J. T. S. (Creator), Maguire, P. (Creator), Papaioannou, E. I. (Creator), Mariotti, D. (Creator) & Mariotti, D. (Contributor), Ulster University, 31 Jan 2023
DOI: 10.21251/794ab086-d855-4e44-805a-5c019868546b
Dataset
Dielectric barrier plasma discharge exsolution of nanoparticles at room temperature and atmospheric pressure (dataset)
Lee, S. (Creator), Savaniu, C. D. (Creator) & Irvine, J. T. S. (Creator), University of Strathclyde, 2024
DOI: 10.15129/e2e11901-92c4-4b2e-a83e-ff25052e972a
Dataset

Cite this

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 , Early View, Article e2402235. Advance online publication. https://doi.org/10.1002/advs.202402235

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title = "Dielectric barrier plasma discharge exsolution of nanoparticles at room temperature and atmospheric pressure",

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 (<30 nm diameter). To prove the practical utility of exsolved NPs, various experiments aimed at assessing their catalytic performance for methanation from synthesis gas, CO, and CH4 oxidation are carried out. Low-temperature and atmospheric pressure plasma exsolution are successfully demonstrated and suggest that this approach could contribute to the practical deployment of exsolution-based stable catalyst systems.",

keywords = "Exsolution, Perovskites, Ni nanoparticles, Plasma, Catalysis",

author = "\{Ul Haq\}, Atta and Fiorenza Fanelli and Leonidas Bekris and Martin, \{Alex Martinez\} and Steve Lee and Hessan Khalid and Savaniu, \{Cristian D\} and Kalliopi Kousi and Metcalfe, \{Ian S\} and Irvine, \{John T S\} and Paul Maguire and Papaioannou, \{Evangelos I\} and Davide Mariotti",

note = "Funding: his work was supported by EPSRC through the UK Catalysis Hub (EP/R027129/1) and the Emergent Nanomaterials-Critical Mass Initiative (EP/R023638/1, EP/R023921/1, EP/R023522/1, EP/R008841/1) as well as the Royal Society (IES∖R2∖212049). F.F. gratefully acknowledges support from the National Research Council of Italy (2020 STM program). I.S.M. acknowledges funding from the Royal Academy of Engineering through a Chair in Emerging Technologies Award entitled “Engineering Chemical Reactor Technologies for a Low-Carbon Energy Future” (Grant CiET1819∖2∖57). K.K. acknowledges funding from the Henry Royce Institute (EP/X527257/1), Royal Society (RGS∖R2∖222062), and EPSRC (EP/Y015487/1).",

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doi = "10.1002/advs.202402235",

language = "English",

volume = "Early View",

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T1 - Dielectric barrier plasma discharge exsolution of nanoparticles at room temperature and atmospheric pressure

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

N1 - Funding: his work was supported by EPSRC through the UK Catalysis Hub (EP/R027129/1) and the Emergent Nanomaterials-Critical Mass Initiative (EP/R023638/1, EP/R023921/1, EP/R023522/1, EP/R008841/1) as well as the Royal Society (IES∖R2∖212049). F.F. gratefully acknowledges support from the National Research Council of Italy (2020 STM program). I.S.M. acknowledges funding from the Royal Academy of Engineering through a Chair in Emerging Technologies Award entitled “Engineering Chemical Reactor Technologies for a Low-Carbon Energy Future” (Grant CiET1819∖2∖57). K.K. acknowledges funding from the Henry Royce Institute (EP/X527257/1), Royal Society (RGS∖R2∖222062), and EPSRC (EP/Y015487/1).

PY - 2024/7/4

Y1 - 2024/7/4

N2 - 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 (<30 nm diameter). To prove the practical utility of exsolved NPs, various experiments aimed at assessing their catalytic performance for methanation from synthesis gas, CO, and CH4 oxidation are carried out. Low-temperature and atmospheric pressure plasma exsolution are successfully demonstrated and suggest that this approach could contribute to the practical deployment of exsolution-based stable catalyst systems.

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 (<30 nm diameter). To prove the practical utility of exsolved NPs, various experiments aimed at assessing their catalytic performance for methanation from synthesis gas, CO, and CH4 oxidation are carried out. Low-temperature and atmospheric pressure plasma exsolution are successfully demonstrated and suggest that this approach could contribute to the practical deployment of exsolution-based stable catalyst systems.

KW - Exsolution

KW - Perovskites

KW - Ni nanoparticles

KW - Plasma

KW - Catalysis

U2 - 10.1002/advs.202402235

DO - 10.1002/advs.202402235

M3 - Article

C2 - 38965704

SN - 2198-3844

VL - Early View

JO - Advanced Science

JF - Advanced Science

M1 - e2402235

ER -

Dielectric barrier plasma discharge exsolution of nanoparticles at room temperature and atmospheric pressure

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Keywords

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Dielectric barrier plasma discharge exsolution of nanoparticles at room temperature and atmospheric pressure dataset

Dielectric barrier plasma discharge exsolution of nanoparticles at room temperature and atmospheric pressure (dataset)

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