Formation of nanostructured rutile TiO                         2                          synthesized on Ti powder via thermal oxidation

Jong Min Byun; Hye Rim Choi; Se Hoon Kim; Myung Jin Suk; Young Do Kim

doi:10.1016/j.apsusc.2016.10.106

Formation of nanostructured rutile TiO ₂ synthesized on Ti powder via thermal oxidation

Jong Min Byun, Hye Rim Choi, Se Hoon Kim, Myung Jin Suk, Young Do Kim

Dept. of Materials Science & Engineering

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

3 Scopus citations

Abstract

The nanostructured rutile TiO ₂ that have large specific surface area was formed on Ti powder through thermal oxidation. Thermal oxidation of Ti powder by using an external oxygen source was shown to be a simple and facile method to synthesize nanostructured rutile TiO ₂ . Raw Ti powder was etched by using 30% HCl solution to control the surface morphology of Ti and to increase the surface area for effective diffusion of oxygen source. Then, etched powders were thermally oxidized at 750 and 850 °C with ethanol as the oxygen source. Coral-like nanostructured rutile TiO ₂ of size 500 nm was formed at 850 °C from Ti powder etched for more than 20 min. The specific surface area of the resulting powder, which consisted of intermediate oxide (Ti ₂ O) cores covered with nanostructured rutile TiO ₂ , was 48 times that of the raw Ti powder.

Original language	English
Pages (from-to)	43-48
Number of pages	6
Journal	Applied Surface Science
Volume	415
DOIs	https://doi.org/10.1016/j.apsusc.2016.10.106
State	Published - 1 Sep 2017

Keywords

Nanostructure
Specific surface area
Thermal oxidation
TiO

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10.1016/j.apsusc.2016.10.106

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title = " Formation of nanostructured rutile TiO 2 synthesized on Ti powder via thermal oxidation ",

abstract = " The nanostructured rutile TiO 2 that have large specific surface area was formed on Ti powder through thermal oxidation. Thermal oxidation of Ti powder by using an external oxygen source was shown to be a simple and facile method to synthesize nanostructured rutile TiO 2 . Raw Ti powder was etched by using 30\% HCl solution to control the surface morphology of Ti and to increase the surface area for effective diffusion of oxygen source. Then, etched powders were thermally oxidized at 750 and 850 °C with ethanol as the oxygen source. Coral-like nanostructured rutile TiO 2 of size 500 nm was formed at 850 °C from Ti powder etched for more than 20 min. The specific surface area of the resulting powder, which consisted of intermediate oxide (Ti 2 O) cores covered with nanostructured rutile TiO 2 , was 48 times that of the raw Ti powder.",

keywords = "Nanostructure, Specific surface area, Thermal oxidation, TiO",

author = "Byun, \{Jong Min\} and Choi, \{Hye Rim\} and Kim, \{Se Hoon\} and Suk, \{Myung Jin\} and Kim, \{Young Do\}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.apsusc.2016.10.106",

language = "English",

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TY - JOUR

T1 - Formation of nanostructured rutile TiO 2 synthesized on Ti powder via thermal oxidation

AU - Byun, Jong Min

AU - Choi, Hye Rim

AU - Kim, Se Hoon

AU - Suk, Myung Jin

AU - Kim, Young Do

PY - 2017/9/1

Y1 - 2017/9/1

N2 - The nanostructured rutile TiO 2 that have large specific surface area was formed on Ti powder through thermal oxidation. Thermal oxidation of Ti powder by using an external oxygen source was shown to be a simple and facile method to synthesize nanostructured rutile TiO 2 . Raw Ti powder was etched by using 30% HCl solution to control the surface morphology of Ti and to increase the surface area for effective diffusion of oxygen source. Then, etched powders were thermally oxidized at 750 and 850 °C with ethanol as the oxygen source. Coral-like nanostructured rutile TiO 2 of size 500 nm was formed at 850 °C from Ti powder etched for more than 20 min. The specific surface area of the resulting powder, which consisted of intermediate oxide (Ti 2 O) cores covered with nanostructured rutile TiO 2 , was 48 times that of the raw Ti powder.

AB - The nanostructured rutile TiO 2 that have large specific surface area was formed on Ti powder through thermal oxidation. Thermal oxidation of Ti powder by using an external oxygen source was shown to be a simple and facile method to synthesize nanostructured rutile TiO 2 . Raw Ti powder was etched by using 30% HCl solution to control the surface morphology of Ti and to increase the surface area for effective diffusion of oxygen source. Then, etched powders were thermally oxidized at 750 and 850 °C with ethanol as the oxygen source. Coral-like nanostructured rutile TiO 2 of size 500 nm was formed at 850 °C from Ti powder etched for more than 20 min. The specific surface area of the resulting powder, which consisted of intermediate oxide (Ti 2 O) cores covered with nanostructured rutile TiO 2 , was 48 times that of the raw Ti powder.

KW - Nanostructure

KW - Specific surface area

KW - Thermal oxidation

KW - TiO

UR - https://www.scopus.com/pages/publications/85006086278

U2 - 10.1016/j.apsusc.2016.10.106

DO - 10.1016/j.apsusc.2016.10.106

M3 - Article

AN - SCOPUS:85006086278

SN - 0169-4332

VL - 415

SP - 43

EP - 48

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Formation of nanostructured rutile TiO ₂ synthesized on Ti powder via thermal oxidation

Abstract

Keywords

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