Unveiling the Microscopic Origins of Phase Transformations: An in Situ TEM Perspective †

Lei Yu; Bethany M. Hudak; Ahamed Ullah; Melonie P. Thomas; Chloe C. Porter; Ayanthi Thisera; Rose H. Pham; Manisha De Alwis Goonatilleke; Beth S. Guiton

doi:10.1021/acs.chemmater.9b03360

Unveiling the Microscopic Origins of Phase Transformations: An in Situ TEM Perspective †

Lei Yu
, Bethany M. Hudak
, Ahamed Ullah
, Melonie P. Thomas
, Chloe C. Porter
, Ayanthi Thisera
, Rose H. Pham
, Manisha De Alwis Goonatilleke
, Beth S. Guiton

Research output: Contribution to journal › Review article › peer-review

17 Scopus citations

Abstract

Nanostructuring inorganic solids has been effective as a tool to control the identity of the thermodynamically stable phase under ambient conditions for many systems. In addition, size effects can alter not only the temperature but also the other characteristics of a transformation - such as order, mechanism, and kinetics - which may further be responsible for the transient existence of intermediates, both thermodynamic and metastable, not accessed in the bulk. Since understanding the mechanism of a phase transformation requires local, even atomistic, information, and a similar understanding of the kinetics requires this information to be collected in real-time, in situ microscopy has proved invaluable in identifying key features of transformations on the nanoscale and promises to play a key role in the future design and implementation of such systems. Here, we discuss the use of in situ heating and biasing in the transmission electron microscope to investigate phase transformations in inorganic, single-phase, solid-state, nanostructured systems.

Original language	English
Pages (from-to)	639-650
Number of pages	12
Journal	Chemistry of Materials
Volume	32
Issue number	2
DOIs	https://doi.org/10.1021/acs.chemmater.9b03360
State	Published - Jan 28 2020

Bibliographical note

Publisher Copyright:
Copyright © 2020 American Chemical Society.

Funding

This work was supported by the National Science Foundation under DMR 1455154 and OIA 1355438 (partial salary support for M.P.T.) and by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division (B.M.H.). Partial salary support was provided by the Research Corporation for Science Advancement via Scialog Award 26329 (A.U.) and by NASA Kentucky under NASA Award No. NN15AK28A (M.P.T.).

Funders	Funder number
National Science Foundation (NSF)	OIA 1355438, DMR 1455154
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory
National Aeronautics and Space Administration	NN15AK28A
Kentucky Space Grant Consortium
Office of Science Programs
Office of Basic Energy Sciences
Division of Materials Sciences and Engineering	26329

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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10.1021/acs.chemmater.9b03360

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title = "Unveiling the Microscopic Origins of Phase Transformations: An in Situ TEM Perspective †",

abstract = "Nanostructuring inorganic solids has been effective as a tool to control the identity of the thermodynamically stable phase under ambient conditions for many systems. In addition, size effects can alter not only the temperature but also the other characteristics of a transformation - such as order, mechanism, and kinetics - which may further be responsible for the transient existence of intermediates, both thermodynamic and metastable, not accessed in the bulk. Since understanding the mechanism of a phase transformation requires local, even atomistic, information, and a similar understanding of the kinetics requires this information to be collected in real-time, in situ microscopy has proved invaluable in identifying key features of transformations on the nanoscale and promises to play a key role in the future design and implementation of such systems. Here, we discuss the use of in situ heating and biasing in the transmission electron microscope to investigate phase transformations in inorganic, single-phase, solid-state, nanostructured systems.",

author = "Lei Yu and Hudak, \{Bethany M.\} and Ahamed Ullah and Thomas, \{Melonie P.\} and Porter, \{Chloe C.\} and Ayanthi Thisera and Pham, \{Rose H.\} and \{De Alwis Goonatilleke\}, Manisha and Guiton, \{Beth S.\}",

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AU - Hudak, Bethany M.

AU - Ullah, Ahamed

AU - Thomas, Melonie P.

AU - Porter, Chloe C.

AU - Thisera, Ayanthi

AU - Pham, Rose H.

AU - De Alwis Goonatilleke, Manisha

AU - Guiton, Beth S.

PY - 2020/1/28

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N2 - Nanostructuring inorganic solids has been effective as a tool to control the identity of the thermodynamically stable phase under ambient conditions for many systems. In addition, size effects can alter not only the temperature but also the other characteristics of a transformation - such as order, mechanism, and kinetics - which may further be responsible for the transient existence of intermediates, both thermodynamic and metastable, not accessed in the bulk. Since understanding the mechanism of a phase transformation requires local, even atomistic, information, and a similar understanding of the kinetics requires this information to be collected in real-time, in situ microscopy has proved invaluable in identifying key features of transformations on the nanoscale and promises to play a key role in the future design and implementation of such systems. Here, we discuss the use of in situ heating and biasing in the transmission electron microscope to investigate phase transformations in inorganic, single-phase, solid-state, nanostructured systems.

AB - Nanostructuring inorganic solids has been effective as a tool to control the identity of the thermodynamically stable phase under ambient conditions for many systems. In addition, size effects can alter not only the temperature but also the other characteristics of a transformation - such as order, mechanism, and kinetics - which may further be responsible for the transient existence of intermediates, both thermodynamic and metastable, not accessed in the bulk. Since understanding the mechanism of a phase transformation requires local, even atomistic, information, and a similar understanding of the kinetics requires this information to be collected in real-time, in situ microscopy has proved invaluable in identifying key features of transformations on the nanoscale and promises to play a key role in the future design and implementation of such systems. Here, we discuss the use of in situ heating and biasing in the transmission electron microscope to investigate phase transformations in inorganic, single-phase, solid-state, nanostructured systems.

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Unveiling the Microscopic Origins of Phase Transformations: An in Situ TEM Perspective †

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

Access to Document

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