Transformation behavior of layered LaOCl to La(OH)3 nanostructures in water

Seoung Soo Lee; Song Ho Byeon

doi:10.1016/j.mseb.2006.05.004

Transformation behavior of layered LaOCl to La(OH)₃ nanostructures in water

Seoung Soo Lee
, Song Ho Byeon

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

12 Citations (Scopus)

Abstract

LnOCl (Ln = La, Nd, and Sm) with layered structure was transformed into Ln(OH)₃ in water. The electron microscopy images of La(OH)₃ showed various nanostructures such as nanoneedles, nanowires, nanoneedle chains, nanoneedle bundles, and nanochain bundles. Although the formation mechanism is not accompanied by a typical exfoliation of LaOCl into individual sheets because of no existence of true van der Waals gap between layers, this transformation proceeds in highly controlled manner to yield regular nanostructures. The nanoneedles are the fundamental building blocks for the evolution of other complex one-dimensional structures, depending on their assembly fashions. The length and number of nanoneedles constituting single bundle structure can be slightly controlled by adjusting the pH values of aqueous solutions. The shape of LaOCl precursor plays a key role in the final size, morphology, and alignment of La(OH)₃ nanoneedles at room temperature.

Original language	English
Pages (from-to)	77-83
Number of pages	7
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	133
Issue number	1-3
DOIs	https://doi.org/10.1016/j.mseb.2006.05.004
Publication status	Published - 25 Aug 2006

Bibliographical note

Funding Information:
This work was supported by the KOSEF through grant R01-2004-000-10610-0.

Keywords

Electron microscopy
Inorganic compounds
Lanthanides
Layer structures

Access to Document

10.1016/j.mseb.2006.05.004

Cite this

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title = "Transformation behavior of layered LaOCl to La(OH)3 nanostructures in water",

abstract = "LnOCl (Ln = La, Nd, and Sm) with layered structure was transformed into Ln(OH)3 in water. The electron microscopy images of La(OH)3 showed various nanostructures such as nanoneedles, nanowires, nanoneedle chains, nanoneedle bundles, and nanochain bundles. Although the formation mechanism is not accompanied by a typical exfoliation of LaOCl into individual sheets because of no existence of true van der Waals gap between layers, this transformation proceeds in highly controlled manner to yield regular nanostructures. The nanoneedles are the fundamental building blocks for the evolution of other complex one-dimensional structures, depending on their assembly fashions. The length and number of nanoneedles constituting single bundle structure can be slightly controlled by adjusting the pH values of aqueous solutions. The shape of LaOCl precursor plays a key role in the final size, morphology, and alignment of La(OH)3 nanoneedles at room temperature.",

keywords = "Electron microscopy, Inorganic compounds, Lanthanides, Layer structures",

author = "Lee, \{Seoung Soo\} and Byeon, \{Song Ho\}",

note = "Funding Information: This work was supported by the KOSEF through grant R01-2004-000-10610-0.",

year = "2006",

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day = "25",

doi = "10.1016/j.mseb.2006.05.004",

language = "English",

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journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",

issn = "0921-5107",

publisher = "Elsevier Ltd.",

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T1 - Transformation behavior of layered LaOCl to La(OH)3 nanostructures in water

AU - Lee, Seoung Soo

AU - Byeon, Song Ho

N1 - Funding Information: This work was supported by the KOSEF through grant R01-2004-000-10610-0.

PY - 2006/8/25

Y1 - 2006/8/25

N2 - LnOCl (Ln = La, Nd, and Sm) with layered structure was transformed into Ln(OH)3 in water. The electron microscopy images of La(OH)3 showed various nanostructures such as nanoneedles, nanowires, nanoneedle chains, nanoneedle bundles, and nanochain bundles. Although the formation mechanism is not accompanied by a typical exfoliation of LaOCl into individual sheets because of no existence of true van der Waals gap between layers, this transformation proceeds in highly controlled manner to yield regular nanostructures. The nanoneedles are the fundamental building blocks for the evolution of other complex one-dimensional structures, depending on their assembly fashions. The length and number of nanoneedles constituting single bundle structure can be slightly controlled by adjusting the pH values of aqueous solutions. The shape of LaOCl precursor plays a key role in the final size, morphology, and alignment of La(OH)3 nanoneedles at room temperature.

AB - LnOCl (Ln = La, Nd, and Sm) with layered structure was transformed into Ln(OH)3 in water. The electron microscopy images of La(OH)3 showed various nanostructures such as nanoneedles, nanowires, nanoneedle chains, nanoneedle bundles, and nanochain bundles. Although the formation mechanism is not accompanied by a typical exfoliation of LaOCl into individual sheets because of no existence of true van der Waals gap between layers, this transformation proceeds in highly controlled manner to yield regular nanostructures. The nanoneedles are the fundamental building blocks for the evolution of other complex one-dimensional structures, depending on their assembly fashions. The length and number of nanoneedles constituting single bundle structure can be slightly controlled by adjusting the pH values of aqueous solutions. The shape of LaOCl precursor plays a key role in the final size, morphology, and alignment of La(OH)3 nanoneedles at room temperature.

KW - Electron microscopy

KW - Inorganic compounds

KW - Lanthanides

KW - Layer structures

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