Water vapor adsorption and desorption on materials hydrothermally solidified from clay minerals

Hirotaka Maeda, Hideki Ishida

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Water vapor isotherms were examined and 1H-magic-angle spinning nuclear magnetic resonance (1H-MAS NMR) analysis was conducted to determine the amount of water vapor adsorbed and desorbed on hydrothermally solidified materials derived from clay minerals. The amount of water vapor adsorbed and desorbed decreased with increasing mesopore volume of the materials, which disagreed with the estimation obtained using the Kelvin equation. Water vapor was physisorbed on alumina-like sites in the materials. An increase in the binding energy between water vapor and the materials led to an improvement in the water vapor adsorption-desorption properties of materials.

Original languageEnglish
Pages (from-to)2125-2128
Number of pages4
JournalJournal of the American Ceramic Society
Volume92
Issue number9
DOIs
Publication statusPublished - 2009 Sep 1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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