著者

湯澤 哲夫 久保田 純 近藤 淳子 堂免 一成 廣瀬 千秋

出版者

The Surface Science Society of Japan

雑誌

表面科学 (ISSN:03885321)

巻号頁・発行日

vol.15, no.6, pp.359-363, 1994-08-10 (Released:2009-08-07)

参考文献数

23

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Coadsorption-induced recombination of surface hydroxyl species (OD(a)) on Ni (110) was verified by infrared reflection absorption spectroscopy (IRAS) and temperature programmed desorption (TPD). The O-D stretching mode of the surface hydroxyl species appeared at 2650 cm-1 at 173 K on D2O/ONi (110) surface. The hydroxyl species were thermally recombined and desorbed as D2O from the Ni (110) surface at 350 K. The recombination of the OD species to water (2731 and 2567 cm-1), was also observed at a lower temperature (117 K) when CO was coadsorbed. This OD recombination induced by CO adsorption is considered to result from a strong effect of coadsorbed CO, which lowers the reaction temperature from 350 to 117 K.