کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9818101 | 1518776 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
TOF-SIMS investigation of hydration of acetic acid adsorbed on amorphous water-ice surface
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
In order to gain insight into the acid-base reaction in the hydrogen bond systems, we have been investigating the hydration and ionization of the CH3COOH molecules adsorbed on the non-porous D2O-ice surface by time-of-flight secondary ion mass spectrometry. At temperatures above 60Â K, the H+(CH3COOH) intensity (the H+(D2O) intensity) increases (decreases) due to the hydrogen-bond formation between the CH3COOH and D2O molecules. The D+(CH3COOD) ion evolves above 130Â K as a result of the thermally induced proton transfer reactions between the CH3COOH and D2O molecules. The translational diffusion of the water molecules is responsible for the H/D exchange.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 232, Issues 1â4, May 2005, Pages 134-139
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 232, Issues 1â4, May 2005, Pages 134-139
نویسندگان
M. Kondo, T. Shibata, H. Kawanowa, Y. Gotoh, R. Souda,