Methane/water adsorption properties of synthetic imogolite nanotubes

Fumihiko Ohashi, Shinji Tomura, Shin Ichiro Wada

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Aluminosilicate nanotubes (imogolite) have been synthesized from highly concentrated inorganic solutions by hydrothermal treatment. These can be converted to microporous nanofibers with a pore radius in the range of 0.3-0.6 nm referring to the results from the nitrogen adsorption isotherm. The water vapor adsorption isotherms indicated that the natural imogolite plotted a proportional isothermal curve where the amount of adsorbed water increased in proportion to P/P0: the maximum amount of adsorbed water was ca. 60 wt%. The synthetic imogolite showed a rapid increase at 0.9-0.95 range of P/P0 and achieved a maximum of ca 80 wt%, with a better methane storage property than that of the usual compressed natural gas storage. In order to obtain a high ratio of water adsorption and a large methane storage capacity, it is necessary to control the micro/meso porous structure and the hydrophilic/hydrophobic surface affinity. It is expected that the synthetic imogolite might become a multipurpose adsorbent.

本文言語英語
ホスト出版物のタイトルSolvothermal Synthesis and Processing of Materials
出版社Materials Research Society
ページ63-68
ページ数6
ISBN(印刷版)1558998322, 9781558998322
DOI
出版ステータス出版済み - 2005
イベント2005 MRS Spring Meeting - San Francisco, CA, 米国
継続期間: 3 28 20054 1 2005

出版物シリーズ

名前Materials Research Society Symposium Proceedings
878
ISSN(印刷版)0272-9172

その他

その他2005 MRS Spring Meeting
国/地域米国
CitySan Francisco, CA
Period3/28/054/1/05

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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