کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9594203 | 1507518 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Proton spin-spin relaxation study of hydration of a model nanopore
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Proton spin-spin relaxation study of hydration of a model nanopore Proton spin-spin relaxation study of hydration of a model nanopore](/preview/png/9594203.png)
چکیده انگلیسی
The hydration pattern of controlled pore glass, with pore diameter of 237Â Ã
, was investigated using nuclear magnetic resonance. Water proton spin-spin relaxation decay curves were monitored and modeled as two-component exponential decays as a function of hydration. The results are consistent with a geometric model involving a surface water layer and a bulk-like liquid fraction in the form of a plug. The amount of surface water increases as the sample hydrates, until hydration reached approximately a monolayer, at which point a water plug starts to form in the pore, and grow in length at the expense of the surface layer. The results are also analyzed in terms of, and compared to, a recently developed puddle pore-filling model [S.G. Allen, et al. J. Chem. Phys. 106 (1997) 7802-7809].
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Nuclear Magnetic Resonance - Volume 28, Issues 2â4, September 2005, Pages 238-243
Journal: Solid State Nuclear Magnetic Resonance - Volume 28, Issues 2â4, September 2005, Pages 238-243
نویسندگان
W.E. Troyer, R. Holly, H. Peemoeller, M.M. Pintar,