{1 1 1}-faceting of low-temperature processed rutile TiO2 rods

Keita Kakiuchi, Eiji Hosono, Hiroaki Imai, Toshio Kimura, Shinobu Fujihara

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

Rutile-type TiO2 rods were grown on glass substrates through heterogeneous nucleation in TiCl3 aqueous solutions at low temperatures of 80 or 200 °C under hydrothermal conditions. The reaction temperature of 80 °C led to the initial formation of self-assembled nanoneedles 5 nm in diameter, which further grew into needle-like rutile rods 500 nm in length by prolonging a reaction period to 168 h. In contrast, the temperature of 200 °C was effectively used to promote the growth of rutile rods much faster. Interestingly, after the growth for 24 h, the top of all the rods were pyramidically capped. A transmission electron microscopic observation revealed that the pyramidical tops consisted of {1 1 1} planes of rutile. Our results then demonstrated that the unusually {1 1 1}-faceted rutile could be grown under mild conditions using the aqueous solutions.

Original languageEnglish
Pages (from-to)541-545
Number of pages5
JournalJournal of Crystal Growth
Volume293
Issue number2
DOIs
Publication statusPublished - 2006 Aug 1

Fingerprint

rutile
rods
Nanoneedles
Needles
Temperature
aqueous solutions
Nucleation
Glass
Electrons
needles
Substrates
titanium dioxide
nucleation
temperature
glass
electrons

Keywords

  • A1. Crystal morphology
  • A2. Hydrothermal crystal growth
  • B1. Oxides
  • B1. Titanium compounds

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

{1 1 1}-faceting of low-temperature processed rutile TiO2 rods. / Kakiuchi, Keita; Hosono, Eiji; Imai, Hiroaki; Kimura, Toshio; Fujihara, Shinobu.

In: Journal of Crystal Growth, Vol. 293, No. 2, 01.08.2006, p. 541-545.

Research output: Contribution to journalArticle

Kakiuchi, Keita ; Hosono, Eiji ; Imai, Hiroaki ; Kimura, Toshio ; Fujihara, Shinobu. / {1 1 1}-faceting of low-temperature processed rutile TiO2 rods. In: Journal of Crystal Growth. 2006 ; Vol. 293, No. 2. pp. 541-545.
@article{fd64231b18f844df9afc63a42f99e2e9,
title = "{1 1 1}-faceting of low-temperature processed rutile TiO2 rods",
abstract = "Rutile-type TiO2 rods were grown on glass substrates through heterogeneous nucleation in TiCl3 aqueous solutions at low temperatures of 80 or 200 °C under hydrothermal conditions. The reaction temperature of 80 °C led to the initial formation of self-assembled nanoneedles 5 nm in diameter, which further grew into needle-like rutile rods 500 nm in length by prolonging a reaction period to 168 h. In contrast, the temperature of 200 °C was effectively used to promote the growth of rutile rods much faster. Interestingly, after the growth for 24 h, the top of all the rods were pyramidically capped. A transmission electron microscopic observation revealed that the pyramidical tops consisted of {1 1 1} planes of rutile. Our results then demonstrated that the unusually {1 1 1}-faceted rutile could be grown under mild conditions using the aqueous solutions.",
keywords = "A1. Crystal morphology, A2. Hydrothermal crystal growth, B1. Oxides, B1. Titanium compounds",
author = "Keita Kakiuchi and Eiji Hosono and Hiroaki Imai and Toshio Kimura and Shinobu Fujihara",
year = "2006",
month = "8",
day = "1",
doi = "10.1016/j.jcrysgro.2006.06.004",
language = "English",
volume = "293",
pages = "541--545",
journal = "Journal of Crystal Growth",
issn = "0022-0248",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - {1 1 1}-faceting of low-temperature processed rutile TiO2 rods

AU - Kakiuchi, Keita

AU - Hosono, Eiji

AU - Imai, Hiroaki

AU - Kimura, Toshio

AU - Fujihara, Shinobu

PY - 2006/8/1

Y1 - 2006/8/1

N2 - Rutile-type TiO2 rods were grown on glass substrates through heterogeneous nucleation in TiCl3 aqueous solutions at low temperatures of 80 or 200 °C under hydrothermal conditions. The reaction temperature of 80 °C led to the initial formation of self-assembled nanoneedles 5 nm in diameter, which further grew into needle-like rutile rods 500 nm in length by prolonging a reaction period to 168 h. In contrast, the temperature of 200 °C was effectively used to promote the growth of rutile rods much faster. Interestingly, after the growth for 24 h, the top of all the rods were pyramidically capped. A transmission electron microscopic observation revealed that the pyramidical tops consisted of {1 1 1} planes of rutile. Our results then demonstrated that the unusually {1 1 1}-faceted rutile could be grown under mild conditions using the aqueous solutions.

AB - Rutile-type TiO2 rods were grown on glass substrates through heterogeneous nucleation in TiCl3 aqueous solutions at low temperatures of 80 or 200 °C under hydrothermal conditions. The reaction temperature of 80 °C led to the initial formation of self-assembled nanoneedles 5 nm in diameter, which further grew into needle-like rutile rods 500 nm in length by prolonging a reaction period to 168 h. In contrast, the temperature of 200 °C was effectively used to promote the growth of rutile rods much faster. Interestingly, after the growth for 24 h, the top of all the rods were pyramidically capped. A transmission electron microscopic observation revealed that the pyramidical tops consisted of {1 1 1} planes of rutile. Our results then demonstrated that the unusually {1 1 1}-faceted rutile could be grown under mild conditions using the aqueous solutions.

KW - A1. Crystal morphology

KW - A2. Hydrothermal crystal growth

KW - B1. Oxides

KW - B1. Titanium compounds

UR - http://www.scopus.com/inward/record.url?scp=33746426643&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746426643&partnerID=8YFLogxK

U2 - 10.1016/j.jcrysgro.2006.06.004

DO - 10.1016/j.jcrysgro.2006.06.004

M3 - Article

VL - 293

SP - 541

EP - 545

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

SN - 0022-0248

IS - 2

ER -