Thermal stability of rutile TiO2 with high specific surface area synthesized by self-hydrolysis process

Miki Inada, Kei Mizue, Naoya Enomoto, Junichi Hojo

Research output: Contribution to journalArticle

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Abstract

Rutile with high specific surface area (SSA) was synthesized by self-hydrolysis of TiOCl2 with sodium dodecyl sulfate (SDS) addition. The aggregates of rutile acicular particles with SSA of 120 m2/g formed from 0.5 M TiOCl2 at 50 °C for 24 h. When SDS was added to 0.5 M TiOCl2, the roundish particles surrounded by small acicular rutile formed and the SSA were 210 m2/g at 0.1 M and 340 m2/g at 0.5 M SDS. These results indicate that SDS addition was effective for the synthesis of rutile with high SSA. When heat treatment was carried out at 400 °C in air, the particle coarsening of rutile was observed by XRD and SEM and the SSA decreased, which indicates that thermal stability of rutile with high SSA was low. The addition of SnCl4 to starting solution was effective to improve the thermal stability of rutile with high SSA.

Original languageEnglish
Pages (from-to)102-106
Number of pages5
JournalScience of Advanced Materials
Volume2
Issue number1
DOIs
Publication statusPublished - Mar 2010

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Specific surface area
Hydrolysis
Thermodynamic stability
Sodium dodecyl sulfate
Sodium Dodecyl Sulfate
Coarsening
titanium dioxide
Heat treatment
Scanning electron microscopy
Air

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Thermal stability of rutile TiO2 with high specific surface area synthesized by self-hydrolysis process. / Inada, Miki; Mizue, Kei; Enomoto, Naoya; Hojo, Junichi.

In: Science of Advanced Materials, Vol. 2, No. 1, 03.2010, p. 102-106.

Research output: Contribution to journalArticle

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