Direct oxygen imaging in titania nanocrystals

Weigang Lu; Britain Bruner; Gilberto Casillas; Sergio Mejía-Rosales; Patrick J. Farmer; Miguel José-Yacamán

doi:10.1088/0957-4484/23/33/335706

Direct oxygen imaging in titania nanocrystals

Weigang Lu, Britain Bruner, Gilberto Casillas, Sergio Mejía-Rosales, Patrick J. Farmer, Miguel José-Yacamán

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

6 Scopus citations

Abstract

Recently, rutile nanotwins were synthesized using high temperature organic solvent methods, yielding two kinds of common high-quality rutile twinned nanocrystals, (101) and (301) twins, accompanied by minor rutile nanorods (Lu etal 2012 CrystEngComm 14 3120-4). In this report, the atomic structures of the rutile and anatase nanocrystals are directly resolved with no need for calculation or image simulation using atomic resolution STEM techniques. The locations of the oxygen rows in the rutile twins boundaries are directly determined from both HAADF images and ABF images. To the best of our knowledge, this is the first time oxygen columns have been distinguished in rutile twin boundaries using HAADF and BF imaging.

Original language	English (US)
Article number	335706
Journal	Nanotechnology
Volume	23
Issue number	33
DOIs	https://doi.org/10.1088/0957-4484/23/33/335706
State	Published - Aug 24 2012
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/23/33/335706

Cite this

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title = "Direct oxygen imaging in titania nanocrystals",

abstract = "Recently, rutile nanotwins were synthesized using high temperature organic solvent methods, yielding two kinds of common high-quality rutile twinned nanocrystals, (101) and (301) twins, accompanied by minor rutile nanorods (Lu etal 2012 CrystEngComm 14 3120-4). In this report, the atomic structures of the rutile and anatase nanocrystals are directly resolved with no need for calculation or image simulation using atomic resolution STEM techniques. The locations of the oxygen rows in the rutile twins boundaries are directly determined from both HAADF images and ABF images. To the best of our knowledge, this is the first time oxygen columns have been distinguished in rutile twin boundaries using HAADF and BF imaging.",

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AU - Lu, Weigang

AU - Bruner, Britain

AU - Casillas, Gilberto

AU - Mejía-Rosales, Sergio

AU - Farmer, Patrick J.

AU - José-Yacamán, Miguel

PY - 2012/8/24

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AB - Recently, rutile nanotwins were synthesized using high temperature organic solvent methods, yielding two kinds of common high-quality rutile twinned nanocrystals, (101) and (301) twins, accompanied by minor rutile nanorods (Lu etal 2012 CrystEngComm 14 3120-4). In this report, the atomic structures of the rutile and anatase nanocrystals are directly resolved with no need for calculation or image simulation using atomic resolution STEM techniques. The locations of the oxygen rows in the rutile twins boundaries are directly determined from both HAADF images and ABF images. To the best of our knowledge, this is the first time oxygen columns have been distinguished in rutile twin boundaries using HAADF and BF imaging.

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Direct oxygen imaging in titania nanocrystals

Abstract

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