Inelastic Neutron Scattering Study of Confined Surface Water on Rutile Nanoparticles

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• 作者：Elinor C. Spencer^† ; ; Andrey A. Levchenko^‡ ; ; Nancy L. Ross*^† ; ; Alexander I. Kolesnikov^§ ; ; Juliana Boerio-Goates ; Brian F. Woodf
• 刊名：Journal of Physical Chemistry A
• 出版年：2009
• 出版时间：March 26, 2009
• 年：2009
• 卷：113
• 期：12
• 页码：2796-2800
• 全文大小：186K
• 年卷期：v.113,no.12(March 26, 2009)
• ISSN：1520-5215

文摘

The vibrational density of states (VDOS) for water confined on the surface of rutile-TiO₂ nanoparticles has been extracted from low temperature inelastic neutron scattering spectra. Two rutile-TiO₂ nanoparticle samples that differ in their respective levels of hydration, namely TiO₂·0.37H₂O (1) and TiO₂·0.22H₂O (2) have been studied. The temperature dependency of the heat capacities for the two samples has been quantified from the VDOS. The results from this study are compared with previously reported data for water confined on anatase-TiO₂ nanoparticles.