Asymmetric anatase TiO2 nanocrystals with exposed high-index facets and their excellent lithium storage properties

Hao Bin Wu; Jun Song Chen; Xiong Wen Lou; Huey Hoon Hng

doi:10.1039/c1nr10854a

Asymmetric anatase TiO₂ nanocrystals with exposed high-index facets and their excellent lithium storage properties

Hao Bin Wu
, Jun Song Chen
, Xiong Wen Lou
, Huey Hoon Hng

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

67 Citations (Scopus)

Abstract

In this work, we demonstrate a unique organic solvent system to synthesize asymmetric anatase TiO₂ nanocrystals with a bipyramidal structure, where the upper pyramid is bound by (201) facets, and the lower pyramid is bound by (401) surfaces. Due to the high surface energy of these (401) high-index facets, the nanocrystals tend to assemble on these facets to minimize the free energy, leading to the formation of a dandelion-like hierarchical structure. © 2011 The Royal Society of Chemistry.

Original language	English
Pages (from-to)	4082-4084
Journal	Nanoscale
Volume	3
Issue number	10
DOIs	https://doi.org/10.1039/c1nr10854a
Publication status	Published - Oct 2011
Externally published	Yes

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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].

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Cite this

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title = "Asymmetric anatase TiO2 nanocrystals with exposed high-index facets and their excellent lithium storage properties",

abstract = "In this work, we demonstrate a unique organic solvent system to synthesize asymmetric anatase TiO2 nanocrystals with a bipyramidal structure, where the upper pyramid is bound by (201) facets, and the lower pyramid is bound by (401) surfaces. Due to the high surface energy of these (401) high-index facets, the nanocrystals tend to assemble on these facets to minimize the free energy, leading to the formation of a dandelion-like hierarchical structure. {\textcopyright} 2011 The Royal Society of Chemistry.",

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AU - Wu, Hao Bin

AU - Chen, Jun Song

AU - Lou, Xiong Wen

AU - Hng, Huey Hoon

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].

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AB - In this work, we demonstrate a unique organic solvent system to synthesize asymmetric anatase TiO2 nanocrystals with a bipyramidal structure, where the upper pyramid is bound by (201) facets, and the lower pyramid is bound by (401) surfaces. Due to the high surface energy of these (401) high-index facets, the nanocrystals tend to assemble on these facets to minimize the free energy, leading to the formation of a dandelion-like hierarchical structure. © 2011 The Royal Society of Chemistry.

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DO - 10.1039/c1nr10854a

M3 - RGC 21 - Publication in refereed journal

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JO - Nanoscale

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