Lattice strain-enhanced exsolution of nanoparticles in thin films

Hyeon Han; Jucheol Park; Sang Yeol Nam; Gyeong Man Choi; Stuart S.P. Parkin; Hyun Myung Jang; John T. S. Irvine

doi:10.1038/s41467-019-09395-4

Lattice strain-enhanced exsolution of nanoparticles in thin films

Hyeon Han
, Jucheol Park
, Sang Yeol Nam
, Gyeong Man Choi
, Stuart S.P. Parkin
, Hyun Myung Jang
, John T. S. Irvine

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

Abstract

Nanoparticles formed on oxide surfaces are of key importance in many fields such as catalysis and renewable energy. Here, we control B-site exsolution via lattice strain to achieve a high degree of exsolution of nanoparticles in perovskite thin films: more than 1100 particles μm−2 with a particle size as small as ~5 nm can be achieved via strain control. Compressive-strained films show a larger number of exsolved particles as compared with tensile-strained films. Moreover, the strain-enhanced in situ growth of nanoparticles offers high thermal stability and coking resistance, a low reduction temperature (550 oC), rapid release of particles, and wide tunability. The mechanism of lattice strain-enhanced exsolution is illuminated by thermodynamic and kinetic aspects, emphasizing the unique role of the misfit-strain relaxation energy. This study provides critical insights not only into the design of new forms of nanostructures but also applications ranging from catalysis, energy conversion/storage, nano-composites, nano-magnetism, to nano-optics.

Original language	English
Article number	1471
Number of pages	8
Journal	Nature Communications
Volume	10
Early online date	1 Apr 2019
DOIs	https://doi.org/10.1038/s41467-019-09395-4
Publication status	Published - 1 Dec 2019

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Critical Mass: Emergrent Nanomaterials (Critcal Mass Proposal)
Irvine, J. (PI), Connor, P. (CoI) & Savaniu, C. (CoI)
1/06/18 → 31/01/23
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John Irvine
- jtsist-andrews.acuk
Person: Academic

Lattice strain-enhanced exsolution of nanoparticles in thin films (dataset)
Han, H. (Creator), Park, J. (Creator), Nam, S. Y. (Creator), Choi, G. M. (Creator), Parkin, S. S. P. (Creator) & Irvine, J. T. S. (Creator), University of St Andrews, 8 Apr 2019
DOI: 10.17630/21d12144-58ef-4f82-acd0-ba3c9a44ed72
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abstract = "Nanoparticles formed on oxide surfaces are of key importance in many fields such as catalysis and renewable energy. Here, we control B-site exsolution via lattice strain to achieve a high degree of exsolution of nanoparticles in perovskite thin films: more than 1100 particles μm−2 with a particle size as small as \textasciitilde{}5 nm can be achieved via strain control. Compressive-strained films show a larger number of exsolved particles as compared with tensile-strained films. Moreover, the strain-enhanced in situ growth of nanoparticles offers high thermal stability and coking resistance, a low reduction temperature (550 oC), rapid release of particles, and wide tunability. The mechanism of lattice strain-enhanced exsolution is illuminated by thermodynamic and kinetic aspects, emphasizing the unique role of the misfit-strain relaxation energy. This study provides critical insights not only into the design of new forms of nanostructures but also applications ranging from catalysis, energy conversion/storage, nano-composites, nano-magnetism, to nano-optics.",

author = "Hyeon Han and Jucheol Park and Nam, \{Sang Yeol\} and Choi, \{Gyeong Man\} and Parkin, \{Stuart S.P.\} and Jang, \{Hyun Myung\} and Irvine, \{John T. S.\}",

note = "This work was supported by the National Research Foundation (NRF) Grant funded by the Korean Government (MSIP Grant No.2016R 1D1A1B 03933253). J.T.S.I. thanks the EPSRC for support on emergent nanomaterials through grant EP/R023522/1. H.H. and S.S.P.P. acknowledge the support by the Max Planck Society (MPG).",

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doi = "10.1038/s41467-019-09395-4",

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TY - JOUR

T1 - Lattice strain-enhanced exsolution of nanoparticles in thin films

AU - Han, Hyeon

AU - Park, Jucheol

AU - Nam, Sang Yeol

AU - Choi, Gyeong Man

AU - Parkin, Stuart S.P.

AU - Jang, Hyun Myung

AU - Irvine, John T. S.

N1 - This work was supported by the National Research Foundation (NRF) Grant funded by the Korean Government (MSIP Grant No.2016R 1D1A1B 03933253). J.T.S.I. thanks the EPSRC for support on emergent nanomaterials through grant EP/R023522/1. H.H. and S.S.P.P. acknowledge the support by the Max Planck Society (MPG).

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Nanoparticles formed on oxide surfaces are of key importance in many fields such as catalysis and renewable energy. Here, we control B-site exsolution via lattice strain to achieve a high degree of exsolution of nanoparticles in perovskite thin films: more than 1100 particles μm−2 with a particle size as small as ~5 nm can be achieved via strain control. Compressive-strained films show a larger number of exsolved particles as compared with tensile-strained films. Moreover, the strain-enhanced in situ growth of nanoparticles offers high thermal stability and coking resistance, a low reduction temperature (550 oC), rapid release of particles, and wide tunability. The mechanism of lattice strain-enhanced exsolution is illuminated by thermodynamic and kinetic aspects, emphasizing the unique role of the misfit-strain relaxation energy. This study provides critical insights not only into the design of new forms of nanostructures but also applications ranging from catalysis, energy conversion/storage, nano-composites, nano-magnetism, to nano-optics.

AB - Nanoparticles formed on oxide surfaces are of key importance in many fields such as catalysis and renewable energy. Here, we control B-site exsolution via lattice strain to achieve a high degree of exsolution of nanoparticles in perovskite thin films: more than 1100 particles μm−2 with a particle size as small as ~5 nm can be achieved via strain control. Compressive-strained films show a larger number of exsolved particles as compared with tensile-strained films. Moreover, the strain-enhanced in situ growth of nanoparticles offers high thermal stability and coking resistance, a low reduction temperature (550 oC), rapid release of particles, and wide tunability. The mechanism of lattice strain-enhanced exsolution is illuminated by thermodynamic and kinetic aspects, emphasizing the unique role of the misfit-strain relaxation energy. This study provides critical insights not only into the design of new forms of nanostructures but also applications ranging from catalysis, energy conversion/storage, nano-composites, nano-magnetism, to nano-optics.

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VL - 10

JO - Nature Communications

JF - Nature Communications

M1 - 1471

ER -

Lattice strain-enhanced exsolution of nanoparticles in thin films

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Lattice strain-enhanced exsolution of nanoparticles in thin films (dataset)

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