Journal of the Vacuum Society of Japan
Online ISSN : 1882-4749
Print ISSN : 1882-2398
ISSN-L : 1882-2398
解説
昇温脱離法による水素吸放出の測定
小倉 正平
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ジャーナル フリー

2014 年 57 巻 6 号 p. 219-226

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  Thermal desorption spectroscopy (TDS) is an important technique for investigation of adsorption, absorption, and desorption behaviors of atoms and molecules on surfaces. We briefly summarize the general procedure of TDS in surface science studies, and then we introduce our recent study of hydrogen transport across a Pd-Au alloy surface measured by TDS as an example. By combining the TDS data with other surface analysis, we found that hydrogen penetrates and desorbs through a site related to surface Pd atoms. We also demonstrate a molecular cap effect of CO, where a small amount of CO adsorption greatly changes the hydrogen absorption and desorption behavior by blocking the entrance and exit site.

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© 2014 一般社団法人日本真空学会
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