Synthesis of Alumina Nanowires in a Cordierite Pore Structure by a CVD Process Using a Powder Source

Si Jung Park, Jun Gyu Kim, Doo Jin Choi

Research output: Contribution to journalArticle

Abstract

We fabricated a composite cordierite pore structure with alumina (Al2O3) nanowires by a chemical vapor deposition (CVD) process. The Al2O3 nanowires were grown in a horizontal Al2O3 tube furnace by CVD using an aluminum (Al) powder source without the use of any catalysts at a temperature of 1200C and a pressure of 0.27 kPa. The source evaporation region was at the center of the furnace, and the nanowire deposition region was at the rear of the furnace. By the transport of evaporated species by a carrier gas, nanowires grew in the inner pores of the cordierite filter region at the rear of the furnace at 1200C, while nanowires did not grow in the center region at 1400C. We performed nanowire deposition as a function of the deposition time and determined the relationship between the deposition time and BET surface area.

Original languageEnglish
Pages (from-to)E146-E151
JournalInternational Journal of Applied Ceramic Technology
Volume12
DOIs
Publication statusPublished - 2015 Nov 1

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cordierite
Aluminum Oxide
Pore structure
Powders
Nanowires
Chemical vapor deposition
nanowires
Alumina
aluminum oxides
vapor deposition
porosity
furnaces
Furnaces
synthesis
Aluminum
Evaporation
Gases
evaporation
tubes
aluminum

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry

Cite this

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abstract = "We fabricated a composite cordierite pore structure with alumina (Al2O3) nanowires by a chemical vapor deposition (CVD) process. The Al2O3 nanowires were grown in a horizontal Al2O3 tube furnace by CVD using an aluminum (Al) powder source without the use of any catalysts at a temperature of 1200C and a pressure of 0.27 kPa. The source evaporation region was at the center of the furnace, and the nanowire deposition region was at the rear of the furnace. By the transport of evaporated species by a carrier gas, nanowires grew in the inner pores of the cordierite filter region at the rear of the furnace at 1200C, while nanowires did not grow in the center region at 1400C. We performed nanowire deposition as a function of the deposition time and determined the relationship between the deposition time and BET surface area.",
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Synthesis of Alumina Nanowires in a Cordierite Pore Structure by a CVD Process Using a Powder Source. / Park, Si Jung; Kim, Jun Gyu; Choi, Doo Jin.

In: International Journal of Applied Ceramic Technology, Vol. 12, 01.11.2015, p. E146-E151.

Research output: Contribution to journalArticle

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