Adsorption of Water on Mesoporous Silica for Heat Management: Effect of Pore Structure
Abstract:As a potential adsorbent for humidity control, the mesoporous silica, SBA-15, with various pore sizes that was synthesized hydrothermally at different temperatures was examined by measuring the rate of water adsorption under ambient condition, 2.53 kPa H2O and 30 °C. The adsorption saturation quantity and the diffusion coefficient of water were changed consistently with the micropore fraction in SBA-15 obtained from the t-plot method. The diffusion of water into the SBA-15 was very similar to that on either zeolite A or Y because of the presence of complimentary pore.
Document Type: Research Article
Publication date: 2008-10-01
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