High-resolution electron energy loss spectroscopy has been used to investigate the catalytic properties of Na-doped Au monolayer grown on Cu(111). The presence of Na atoms allows the dissociation of oxygen molecules and the stabilization of atomic oxygen. The strong reduction of the dissociation barrier for O2 promoted by Na could readily favor many surface chemical reactions, due to the key role of atomic oxygen in many oxidation processes catalyzed by gold.

中文翻译：

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在 Cu(111) 上 Na 修饰的金超薄层中的 O2 离解

高分辨率电子能量损失光谱已被用于研究在 Cu(111) 上生长的 Na 掺杂 Au 单层的催化性能。Na 原子的存在允许氧分子解离和原子氧的稳定。由于原子氧在金催化的许多氧化过程中的关键作用，Na 促进的 O2 解离势垒的强烈还原可以很容易地促进许多表面化学反应。