Structural and morphological characterization of cerium oxide nanocrystals prepared by hydrothermal synthesis

Kenji Kaneko; Koji Inoke; Bert Freitag; Ana B. Hungria; Paul A. Midgley; Thomas W. Hansen; Jing Zhang; Satoshi Ohara; Tadafumi Adschiri

doi:10.1021/nl062677b

Structural and morphological characterization of cerium oxide nanocrystals prepared by hydrothermal synthesis

Kenji Kaneko, Koji Inoke, Bert Freitag, Ana B. Hungria, Paul A. Midgley, Thomas W. Hansen, Jing Zhang, Satoshi Ohara, Tadafumi Adschiri

Advanced Institute for Materials Research (AIMR)

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

212 Citations (Scopus)

Abstract

Colloidal cerium oxide (CeO₂) nanocrystals prepared by hydrothermal synthesis were characterized by high-resolution transmission electron microscopy (HRTEM) and three-dimensional electron tomography (3D-ET). HRTEM images of individual CeO₂ nanocrystals were then simulated by Blochwave and multislice simulations to determine the atomic arrangement and terminating atoms. The edge length distributions were between 5.0 and 8.0 nm with an average edge length of 6.7 nm. The HRTEM images showed that the CeO ₂ particles were slightly truncated revealing {220} facets. 3D-ET revealed that the CeO₂ nanocrystals exposed predominantly {200} cubic facets. The nanocrystals were truncated at the corners exposing {111} octahedral facets and at the edges {220} dodecahedral facets. Furthermore, 3D-ET revealed the presence of some tetragonal-shaped CeO₂ nanocrystals.

Original language	English
Pages (from-to)	421-425
Number of pages	5
Journal	Nano Letters
Volume	7
Issue number	2
DOIs	https://doi.org/10.1021/nl062677b
Publication status	Published - 2007 Feb

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@article{47508c425d7140b9b7dce7425a9683ed,

title = "Structural and morphological characterization of cerium oxide nanocrystals prepared by hydrothermal synthesis",

abstract = "Colloidal cerium oxide (CeO2) nanocrystals prepared by hydrothermal synthesis were characterized by high-resolution transmission electron microscopy (HRTEM) and three-dimensional electron tomography (3D-ET). HRTEM images of individual CeO2 nanocrystals were then simulated by Blochwave and multislice simulations to determine the atomic arrangement and terminating atoms. The edge length distributions were between 5.0 and 8.0 nm with an average edge length of 6.7 nm. The HRTEM images showed that the CeO 2 particles were slightly truncated revealing {220} facets. 3D-ET revealed that the CeO2 nanocrystals exposed predominantly {200} cubic facets. The nanocrystals were truncated at the corners exposing {111} octahedral facets and at the edges {220} dodecahedral facets. Furthermore, 3D-ET revealed the presence of some tetragonal-shaped CeO2 nanocrystals.",

author = "Kenji Kaneko and Koji Inoke and Bert Freitag and Hungria, {Ana B.} and Midgley, {Paul A.} and Hansen, {Thomas W.} and Jing Zhang and Satoshi Ohara and Tadafumi Adschiri",

note = "Funding Information: This work was supported by a grant from the Bill and Melinda Gates Foundation to the World Health Organization (grant number OPP1128274).",

year = "2007",

month = feb,

doi = "10.1021/nl062677b",

language = "English",

volume = "7",

pages = "421--425",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

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T1 - Structural and morphological characterization of cerium oxide nanocrystals prepared by hydrothermal synthesis

AU - Kaneko, Kenji

AU - Inoke, Koji

AU - Freitag, Bert

AU - Hungria, Ana B.

AU - Midgley, Paul A.

AU - Hansen, Thomas W.

AU - Zhang, Jing

AU - Ohara, Satoshi

AU - Adschiri, Tadafumi

N1 - Funding Information: This work was supported by a grant from the Bill and Melinda Gates Foundation to the World Health Organization (grant number OPP1128274).

PY - 2007/2

Y1 - 2007/2

N2 - Colloidal cerium oxide (CeO2) nanocrystals prepared by hydrothermal synthesis were characterized by high-resolution transmission electron microscopy (HRTEM) and three-dimensional electron tomography (3D-ET). HRTEM images of individual CeO2 nanocrystals were then simulated by Blochwave and multislice simulations to determine the atomic arrangement and terminating atoms. The edge length distributions were between 5.0 and 8.0 nm with an average edge length of 6.7 nm. The HRTEM images showed that the CeO 2 particles were slightly truncated revealing {220} facets. 3D-ET revealed that the CeO2 nanocrystals exposed predominantly {200} cubic facets. The nanocrystals were truncated at the corners exposing {111} octahedral facets and at the edges {220} dodecahedral facets. Furthermore, 3D-ET revealed the presence of some tetragonal-shaped CeO2 nanocrystals.

AB - Colloidal cerium oxide (CeO2) nanocrystals prepared by hydrothermal synthesis were characterized by high-resolution transmission electron microscopy (HRTEM) and three-dimensional electron tomography (3D-ET). HRTEM images of individual CeO2 nanocrystals were then simulated by Blochwave and multislice simulations to determine the atomic arrangement and terminating atoms. The edge length distributions were between 5.0 and 8.0 nm with an average edge length of 6.7 nm. The HRTEM images showed that the CeO 2 particles were slightly truncated revealing {220} facets. 3D-ET revealed that the CeO2 nanocrystals exposed predominantly {200} cubic facets. The nanocrystals were truncated at the corners exposing {111} octahedral facets and at the edges {220} dodecahedral facets. Furthermore, 3D-ET revealed the presence of some tetragonal-shaped CeO2 nanocrystals.

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VL - 7

SP - 421

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JO - Nano Letters

JF - Nano Letters

IS - 2

ER -

Structural and morphological characterization of cerium oxide nanocrystals prepared by hydrothermal synthesis

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