首页> 外文OA文献 >INFRARED SPECTRA AND THERMAL DESORPTION SPECTRA OF ISOTOPICALLY MIXED AMORPHOUS HYDROGENATED CARBON FILMS PREPARED FROM MIXTURE OF CD4 AND H2 OR CH4 AND D2
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INFRARED SPECTRA AND THERMAL DESORPTION SPECTRA OF ISOTOPICALLY MIXED AMORPHOUS HYDROGENATED CARBON FILMS PREPARED FROM MIXTURE OF CD4 AND H2 OR CH4 AND D2

机译:由CD4和H2或CH4和D2的混合物制得的同位素混合的异质加氢碳膜的红外光谱和热脱附光谱

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摘要

Isotopically mixed amorphous hydrogenated carbon films were prepared from 1:1 mixture of CH4 and D2 (a-CH:D). The atomoc ratio of H:D incorporated in the films were 0.83:0.17 for soft films and 0.80:0.20 for hard films. Compared the infrared spectra of these films with another spectra of the films prepared from 1:1 mixture of CD4 and H2 (a-CD:H), it was concluded that deuterium originating from D2 in the plasma is considerede to be incorporated as an isolated aliphatic C-D bonds exclusively. Thermal desorption spectroscopy of hard a-CH:D films suports this idea because the films release H2 and HD butvery low D2 by heat-treatment under vacuum.
机译:由CH4和D2(a-CH:D)的1:1混合物制备同位素混合的无定形氢化碳膜。薄膜中掺入的H:D的原子比,对于软膜为0.83:0.17,对于硬膜为0.80:0.20。将这些薄膜的红外光谱与由CD4和H2的1:1混合物制备的薄膜的另一光谱(a-CD:H)进行了比较,得出结论认为血浆中源自D2的氘被认为是分离出的脂族CD排他性键。硬质a-CH:D膜的热脱附光谱法支持这一想法,因为该膜通过真空热处理释放H2和HD,但释放的D2非常低。

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