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首页> 外文期刊>The Journal of Chemical Physics >Dissociative sticking of CH_4 on Ru(0001)
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Dissociative sticking of CH_4 on Ru(0001)

机译:CH_4在Ru(0001)上的解离键

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摘要

In this study the CH_4 dissociation probability on Ru(0001) is found for various translational and vibrational energies. The absolute sticking values are determined from King and Wells experiments and carbon uptake curves. The carbon amount is determined from the recombination signal of carbon with oxygen obtained after the beam exposure when heating in an oxygen atmosphere. The measured sticking coefficient of CH_4 is strongly enhanced both by increasing the translational and the vibrational energy of the CH_4 molecule. A model is applied to the data and an estimate of the thermal activation energy for CH_4 dissociation is found to be in good agreement with previous bulb experiments.
机译:在这项研究中,发现了Ru(0001)上各种平移和振动能的CH_4解离概率。绝对粘附值由King和Wells实验和碳吸收曲线确定。当在氧气气氛中加热时,根据碳与在束曝光后获得的氧气的重组信号确定碳量。通过增加CH_4分子的平移能量和振动能,可以大大提高CH_4的测量粘附系数。将模型应用于数据,并发现CH_4解离的热活化能估计值与先前的灯泡实验非常吻合。

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