Drying processes for preparation of titania aerogel using supercritical carbon dioxide

Yusuke Shimoyama, Yusuke Ogata, Ryota Ishibashi, Yoshio Iwai

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Supercritical carbon dioxide drying was performed for the preparation of titania aerogels from sol-gel routes. The conditions of supercritical carbon dioxide drying were 313-323. K and 7.8-15.5. MPa. The solvents in titania wet gels obtained from the sol-gel routes were replaced by acetone. The titania aerogels obtained from supercritical carbon dioxide drying form needle-like structures. In supercritical carbon dioxide drying, the extraction rates of acetone from the wet gels were measured by using an on-line Fourier transform infrared spectroscope. It was found that the titania aerogels with lower cohesion were induced from the formations of homogenous phase for carbon dioxide. +. acetone system and the lower extraction rates of acetone. Furthermore, titania films were prepared by the depositions of the titania aerogels on ITO-coated PET substrates. The needle-like aerogels with lower cohesion derive the titania film with high surface area.

Original languageEnglish
Pages (from-to)1427-1431
Number of pages5
JournalChemical Engineering Research and Design
Volume88
Issue number10
DOIs
Publication statusPublished - Oct 1 2010

Fingerprint

Aerogels
Carbon Dioxide
Carbon dioxide
Drying
Titanium
Acetone
Needles
Sol-gels
Gels
titanium dioxide
Fourier transforms
Infrared radiation
Substrates

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Drying processes for preparation of titania aerogel using supercritical carbon dioxide. / Shimoyama, Yusuke; Ogata, Yusuke; Ishibashi, Ryota; Iwai, Yoshio.

In: Chemical Engineering Research and Design, Vol. 88, No. 10, 01.10.2010, p. 1427-1431.

Research output: Contribution to journalArticle

Shimoyama, Yusuke ; Ogata, Yusuke ; Ishibashi, Ryota ; Iwai, Yoshio. / Drying processes for preparation of titania aerogel using supercritical carbon dioxide. In: Chemical Engineering Research and Design. 2010 ; Vol. 88, No. 10. pp. 1427-1431.
@article{cdd2e1c81afc4d5abb6f7ae60c97d575,
title = "Drying processes for preparation of titania aerogel using supercritical carbon dioxide",
abstract = "Supercritical carbon dioxide drying was performed for the preparation of titania aerogels from sol-gel routes. The conditions of supercritical carbon dioxide drying were 313-323. K and 7.8-15.5. MPa. The solvents in titania wet gels obtained from the sol-gel routes were replaced by acetone. The titania aerogels obtained from supercritical carbon dioxide drying form needle-like structures. In supercritical carbon dioxide drying, the extraction rates of acetone from the wet gels were measured by using an on-line Fourier transform infrared spectroscope. It was found that the titania aerogels with lower cohesion were induced from the formations of homogenous phase for carbon dioxide. +. acetone system and the lower extraction rates of acetone. Furthermore, titania films were prepared by the depositions of the titania aerogels on ITO-coated PET substrates. The needle-like aerogels with lower cohesion derive the titania film with high surface area.",
author = "Yusuke Shimoyama and Yusuke Ogata and Ryota Ishibashi and Yoshio Iwai",
year = "2010",
month = "10",
day = "1",
doi = "10.1016/j.cherd.2010.02.018",
language = "English",
volume = "88",
pages = "1427--1431",
journal = "Chemical Engineering Research and Design",
issn = "0263-8762",
publisher = "Institution of Chemical Engineers",
number = "10",

}

TY - JOUR

T1 - Drying processes for preparation of titania aerogel using supercritical carbon dioxide

AU - Shimoyama, Yusuke

AU - Ogata, Yusuke

AU - Ishibashi, Ryota

AU - Iwai, Yoshio

PY - 2010/10/1

Y1 - 2010/10/1

N2 - Supercritical carbon dioxide drying was performed for the preparation of titania aerogels from sol-gel routes. The conditions of supercritical carbon dioxide drying were 313-323. K and 7.8-15.5. MPa. The solvents in titania wet gels obtained from the sol-gel routes were replaced by acetone. The titania aerogels obtained from supercritical carbon dioxide drying form needle-like structures. In supercritical carbon dioxide drying, the extraction rates of acetone from the wet gels were measured by using an on-line Fourier transform infrared spectroscope. It was found that the titania aerogels with lower cohesion were induced from the formations of homogenous phase for carbon dioxide. +. acetone system and the lower extraction rates of acetone. Furthermore, titania films were prepared by the depositions of the titania aerogels on ITO-coated PET substrates. The needle-like aerogels with lower cohesion derive the titania film with high surface area.

AB - Supercritical carbon dioxide drying was performed for the preparation of titania aerogels from sol-gel routes. The conditions of supercritical carbon dioxide drying were 313-323. K and 7.8-15.5. MPa. The solvents in titania wet gels obtained from the sol-gel routes were replaced by acetone. The titania aerogels obtained from supercritical carbon dioxide drying form needle-like structures. In supercritical carbon dioxide drying, the extraction rates of acetone from the wet gels were measured by using an on-line Fourier transform infrared spectroscope. It was found that the titania aerogels with lower cohesion were induced from the formations of homogenous phase for carbon dioxide. +. acetone system and the lower extraction rates of acetone. Furthermore, titania films were prepared by the depositions of the titania aerogels on ITO-coated PET substrates. The needle-like aerogels with lower cohesion derive the titania film with high surface area.

UR - http://www.scopus.com/inward/record.url?scp=77957309334&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77957309334&partnerID=8YFLogxK

U2 - 10.1016/j.cherd.2010.02.018

DO - 10.1016/j.cherd.2010.02.018

M3 - Article

VL - 88

SP - 1427

EP - 1431

JO - Chemical Engineering Research and Design

JF - Chemical Engineering Research and Design

SN - 0263-8762

IS - 10

ER -