Bulky mesoporous TiO 2 structure

Ja Y. Cho; Woo H. Nam; Young S. Lim; Won Seon Seo; Hyung Ho Park; Jeong Y. Lee

doi:10.1039/c2ra00022a

Bulky mesoporous TiO ₂ structure

Ja Y. Cho, Woo H. Nam, Young S. Lim, Won Seon Seo, Hyung Ho Park, Jeong Y. Lee

Department of Materials Science and Engineering

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

10 Citations (Scopus)

Abstract

We report a bulky mesoporous TiO ₂ structure fabricated by direct consolidation of mesoporous TiO ₂ powder. The mesoporous TiO ₂ powder with an interparticular porosity, which synthesized by a surfactant-mediated sol-gel method, was consolidated by spark plasma sintering at 350-600 °C. A mesoporous structure in the sintered body was revealed by N ₂ adsorption-desorption isotherms, and the maximum surface area of ∼131 m ² g ^-1 was obtained with a porosity of ∼44%. Linear grain growth of the primary TiO ₂ particle size was observed in the bulky mesoporous structure, and the effects of open pores on the grain growth kinetics were discussed.

Original language	English
Pages (from-to)	2449-2453
Number of pages	5
Journal	RSC Advances
Volume	2
Issue number	6
DOIs	https://doi.org/10.1039/c2ra00022a
Publication status	Published - 2012 Mar 14

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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10.1039/c2ra00022a

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AU - Cho, Ja Y.

AU - Nam, Woo H.

AU - Lim, Young S.

AU - Seo, Won Seon

AU - Park, Hyung Ho

AU - Lee, Jeong Y.

PY - 2012/3/14

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AB - We report a bulky mesoporous TiO 2 structure fabricated by direct consolidation of mesoporous TiO 2 powder. The mesoporous TiO 2 powder with an interparticular porosity, which synthesized by a surfactant-mediated sol-gel method, was consolidated by spark plasma sintering at 350-600 °C. A mesoporous structure in the sintered body was revealed by N 2 adsorption-desorption isotherms, and the maximum surface area of ∼131 m 2 g -1 was obtained with a porosity of ∼44%. Linear grain growth of the primary TiO 2 particle size was observed in the bulky mesoporous structure, and the effects of open pores on the grain growth kinetics were discussed.

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Bulky mesoporous TiO ₂ structure

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