Bubble nucleation and migration in a lead-iron hydr(oxide) core-shell nanoparticle

Kaiyang Niu; Timofey Frolov; Huolin L. Xin; Junling Wang; Mark Asta; Haimei Zheng

doi:10.1073/pnas.1510342112

Bubble nucleation and migration in a lead-iron hydr(oxide) core-shell nanoparticle

Kaiyang Niu
, Timofey Frolov
, Huolin L. Xin
, Junling Wang
, Mark Asta
, Haimei Zheng^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

24 Citations (Scopus)

Abstract

Iron hydroxide is found in a wide range of contexts ranging from biominerals to steel corrosion, and it can transform to anhydrous oxide via releasing O₂ gas and H₂O. However, it is not well understood how gases transport through a crystal lattice. Here, we present in situ observation of the nucleation and migration of gas bubbles in iron (hydr)oxide using transmission electron microscopy. We create Pb-FeOOH model core-shell nanoparticles in a liquid cell. Under electron irradiation, iron hydroxide transforms to iron oxide, during which bubbles are generated, and they migrate through the shell to the nanoparticle surface. Geometric phase analysis of the shell lattice shows an inhomogeneous stain field at the bubbles. Our modeling suggests that the elastic interaction between the core and the bubble provides a driving force for bubble migration.

Original language	English
Pages (from-to)	12928-12932
Journal	PNAS: Proceedings of the National Academy of Sciences of the United States of America
Volume	112
Issue number	42
DOIs	https://doi.org/10.1073/pnas.1510342112
Publication status	Published - 20 Oct 2015
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Bubbles
Core-shell nanoparticle
Liquid cell
Nucleation
TEM

Access Output

10.1073/pnas.1510342112

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{88095a69046640d9aec4175674018c17,

title = "Bubble nucleation and migration in a lead-iron hydr(oxide) core-shell nanoparticle",

abstract = "Iron hydroxide is found in a wide range of contexts ranging from biominerals to steel corrosion, and it can transform to anhydrous oxide via releasing O2 gas and H2O. However, it is not well understood how gases transport through a crystal lattice. Here, we present in situ observation of the nucleation and migration of gas bubbles in iron (hydr)oxide using transmission electron microscopy. We create Pb-FeOOH model core-shell nanoparticles in a liquid cell. Under electron irradiation, iron hydroxide transforms to iron oxide, during which bubbles are generated, and they migrate through the shell to the nanoparticle surface. Geometric phase analysis of the shell lattice shows an inhomogeneous stain field at the bubbles. Our modeling suggests that the elastic interaction between the core and the bubble provides a driving force for bubble migration.",

keywords = "Bubbles, Core-shell nanoparticle, Liquid cell, Nucleation, TEM",

author = "Kaiyang Niu and Timofey Frolov and Xin, \{Huolin L.\} and Junling Wang and Mark Asta and Haimei Zheng",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2015",

month = oct,

day = "20",

doi = "10.1073/pnas.1510342112",

language = "English",

volume = "112",

pages = "12928--12932",

journal = "PNAS: Proceedings of the National Academy of Sciences of the United States of America",

issn = "0027-8424",

publisher = "National Academy of Sciences",

number = "42",

}

Bubble nucleation and migration in a lead-iron hydr(oxide) core-shell nanoparticle. / Niu, Kaiyang; Frolov, Timofey; Xin, Huolin L. et al.
In: PNAS: Proceedings of the National Academy of Sciences of the United States of America, Vol. 112, No. 42, 20.10.2015, p. 12928-12932.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Bubble nucleation and migration in a lead-iron hydr(oxide) core-shell nanoparticle

AU - Niu, Kaiyang

AU - Frolov, Timofey

AU - Xin, Huolin L.

AU - Wang, Junling

AU - Asta, Mark

AU - Zheng, Haimei

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2015/10/20

Y1 - 2015/10/20

N2 - Iron hydroxide is found in a wide range of contexts ranging from biominerals to steel corrosion, and it can transform to anhydrous oxide via releasing O2 gas and H2O. However, it is not well understood how gases transport through a crystal lattice. Here, we present in situ observation of the nucleation and migration of gas bubbles in iron (hydr)oxide using transmission electron microscopy. We create Pb-FeOOH model core-shell nanoparticles in a liquid cell. Under electron irradiation, iron hydroxide transforms to iron oxide, during which bubbles are generated, and they migrate through the shell to the nanoparticle surface. Geometric phase analysis of the shell lattice shows an inhomogeneous stain field at the bubbles. Our modeling suggests that the elastic interaction between the core and the bubble provides a driving force for bubble migration.

AB - Iron hydroxide is found in a wide range of contexts ranging from biominerals to steel corrosion, and it can transform to anhydrous oxide via releasing O2 gas and H2O. However, it is not well understood how gases transport through a crystal lattice. Here, we present in situ observation of the nucleation and migration of gas bubbles in iron (hydr)oxide using transmission electron microscopy. We create Pb-FeOOH model core-shell nanoparticles in a liquid cell. Under electron irradiation, iron hydroxide transforms to iron oxide, during which bubbles are generated, and they migrate through the shell to the nanoparticle surface. Geometric phase analysis of the shell lattice shows an inhomogeneous stain field at the bubbles. Our modeling suggests that the elastic interaction between the core and the bubble provides a driving force for bubble migration.

KW - Bubbles

KW - Core-shell nanoparticle

KW - Liquid cell

KW - Nucleation

KW - TEM

UR - https://www.scopus.com/pages/publications/84947223577

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84947223577&origin=recordpage

U2 - 10.1073/pnas.1510342112

DO - 10.1073/pnas.1510342112

M3 - RGC 21 - Publication in refereed journal

C2 - 26438864

SN - 0027-8424

VL - 112

SP - 12928

EP - 12932

JO - PNAS: Proceedings of the National Academy of Sciences of the United States of America

JF - PNAS: Proceedings of the National Academy of Sciences of the United States of America

IS - 42

ER -

Bubble nucleation and migration in a lead-iron hydr(oxide) core-shell nanoparticle

Abstract

Bibliographical note

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this