A change in morphology from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes via electrospray

Hyelan An; Hyo Jin Ahn

doi:10.1016/j.matlet.2012.04.143

A change in morphology from anatase-TiO ₂ nanoparticles to anatase-TiO ₂ nanoflakes via electrospray

Hyelan An, Hyo Jin Ahn

Dept. of Materials Science & Engineering

Seoul National University of Science and Technology (SNUST)

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

13 Scopus citations

Abstract

The change in morphology from anatase-TiO ₂ nanoparticles to anatase-TiO ₂ nanoflakes was induced using an electrospray method. The morphological, structural, and chemical properties of all samples were investigated using field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). To control their morphologies, the relative humidity in a closed electrospray chamber was maintained at 35% ± 3%, 55% ± 3%, and 75% ± 3%. The different morphologies during the transformation from anatase-TiO ₂ nanoparticles to anatase-TiO ₂ nanoflakes were a result of the different relative humidities in the closed electrospray chamber. As a result, anatase-TiO ₂ nanoflakes were formed owing to the higher partial pressure of water in the atmosphere of the closed chamber and the slower solidification process of the charged jet.

Original language	English
Pages (from-to)	41-44
Number of pages	4
Journal	Materials Letters
Volume	81
DOIs	https://doi.org/10.1016/j.matlet.2012.04.143
State	Published - 15 Aug 2012

Keywords

Anatase-TiO
Electrospray
Morphology
Nanoflakes
Nanoparticles

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10.1016/j.matlet.2012.04.143

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title = "A change in morphology from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes via electrospray",

abstract = "The change in morphology from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes was induced using an electrospray method. The morphological, structural, and chemical properties of all samples were investigated using field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). To control their morphologies, the relative humidity in a closed electrospray chamber was maintained at 35% ± 3%, 55% ± 3%, and 75% ± 3%. The different morphologies during the transformation from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes were a result of the different relative humidities in the closed electrospray chamber. As a result, anatase-TiO 2 nanoflakes were formed owing to the higher partial pressure of water in the atmosphere of the closed chamber and the slower solidification process of the charged jet.",

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AU - An, Hyelan

AU - Ahn, Hyo Jin

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N2 - The change in morphology from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes was induced using an electrospray method. The morphological, structural, and chemical properties of all samples were investigated using field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). To control their morphologies, the relative humidity in a closed electrospray chamber was maintained at 35% ± 3%, 55% ± 3%, and 75% ± 3%. The different morphologies during the transformation from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes were a result of the different relative humidities in the closed electrospray chamber. As a result, anatase-TiO 2 nanoflakes were formed owing to the higher partial pressure of water in the atmosphere of the closed chamber and the slower solidification process of the charged jet.

AB - The change in morphology from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes was induced using an electrospray method. The morphological, structural, and chemical properties of all samples were investigated using field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). To control their morphologies, the relative humidity in a closed electrospray chamber was maintained at 35% ± 3%, 55% ± 3%, and 75% ± 3%. The different morphologies during the transformation from anatase-TiO 2 nanoparticles to anatase-TiO 2 nanoflakes were a result of the different relative humidities in the closed electrospray chamber. As a result, anatase-TiO 2 nanoflakes were formed owing to the higher partial pressure of water in the atmosphere of the closed chamber and the slower solidification process of the charged jet.

KW - Anatase-TiO

KW - Electrospray

KW - Morphology

KW - Nanoflakes

KW - Nanoparticles

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A change in morphology from anatase-TiO ₂ nanoparticles to anatase-TiO ₂ nanoflakes via electrospray

Abstract

Keywords

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