Adsorption of water on O(2×2)/Ru(0001): Thermal stability and inhibition of dissociation

Aitor Mugarza, Tomoko K. Shimizu, Pepa Cabrera-Sanfelix, Daniel Sánchez-Portal, Andres Arnau, Miquel Salmeron

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The effect of preadsorbed oxygen on the subsequent adsorption and reactions of water on Ru(0001) has been studied using low temperature scanning tunneling microscopy and DFT calculations. Experiments were carried out for O coverages close to 0.25 ML. It was found that no dissociation of water takes place up to the desorption temperature of #180-230 K. DFT calculations show that intact water on O(2 × 2)/Ru(0001) is #0.49 eV more stable than the dissociation products, H and OH, at their preferred fee and top adsorption sites.

本文言語English
ページ(範囲)14052-14057
ページ数6
ジャーナルJournal of Physical Chemistry C
112
36
DOI
出版ステータスPublished - 2008 9月 11
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

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