کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1671963 | 1008926 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The structures and gas-sorption properties of l-tyrosine films prepared by the Knudsen effusion method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The structures and gas-sorption properties of l-tyrosine films prepared by the Knudsen effusion method The structures and gas-sorption properties of l-tyrosine films prepared by the Knudsen effusion method](/preview/png/1671963.png)
چکیده انگلیسی
l-tyrosine (L-Tyr) films with an oblique columnar structure were prepared by the Knudsen cell effusion method. The L-Tyr films were formed at a Knudsen cell temperature that was sufficiently lower than the decomposition temperature of L-Tyr. As the heating rate controlled by DC current is increased, the molecular network constructed of hydrogen bonds tends to collapse, and the film density and surface hydrophobicity tend to decrease. Higher DC currents are likely to induce a decarboxylation reaction. L-Tyr films prepared at a higher heating rate have enhanced gas sorption capabilities for a wide range of volatile organic compounds (VOCs). The sorption capabilities are particularly enhanced for linear hydrocarbons. The gas sorption characteristics for VOCs suggest that the adsorption in the vicinity of the film surface is dominant rather than diffusion into the film, which corresponds with the densified surface morphology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 517, Issue 13, 1 May 2009, Pages 3817-3823
Journal: Thin Solid Films - Volume 517, Issue 13, 1 May 2009, Pages 3817-3823
نویسندگان
Iwao Sugimoto, Tsuyoshi Matsumoto, Hideaki Shimizu, Ryo Munakata, Michiko Seyama, Jun-ichi Takahashi,