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Pd(210)表面に化学吸着したH$$_{2}$$オルト-パラ転換

Ortho-para conversion of molecularly chemisorbed H$$_{2}$$ on Pd(210)

植田 寛和   ; 福谷 克之

Ueta, Hirokazu; Fukutani, Katsuyuki

A unique molecularly chemisorption of H$$_{2}$$ occurs on some stepped surfaces in addition to the typical adsorption schemes of physisorption and dissociation. In the present study, the rotational state and ${it ortho-to-para (o-p)}$ conversion of the molecularly chemisorbed H$$_{2}$$ on Pd(210) at a surface temperature of 50 K were probed by combining a pulsed molecular beam, photo-stimulated desorption and resonance-enhanced multiphoton ionization techniques. We experimentally demonstrated that the ${it (o-p)}$ conversion proceeds with a conversion time constant of $$sim$$2s that is 2-3 orders of magnitude smaller than those reported for physisorption systems. The origins of such fast conversion and the rotational state distribution of H$$_{2}$$ in molecular chemisorption state are discussed.

使用言語

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Japanese

掲載資料名

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Vacuum and Surface Science

巻

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64

号

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9

ページ数

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p.430 - 434

発行年月

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2021/09

発表会議名

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開催年月

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開催都市

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開催国

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キーワード

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no keyword

特許データ

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PDF

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論文URL

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https://doi.org/10.1380/vss.64.430

研究データの公開先DOI

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使用施設

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広報プレスリリース

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論文解説記事
(成果普及情報誌)

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受委託・共同研究相手機関

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Access

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- Accesses

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