The adsorption of sulfur dioxide, SO₂, on graphene, epitaxially grown on Ru(0001) (short Gr/Ru), was studied at ultrahigh vacuum conditions, by thermal desorption spectroscopy, TDS, and Auger electron spectroscopy, AES. TDS detected the parent mass, i.e., a molecular adsorption/desorption pathway was present. However, deviations in the gas-phase fragmentation pattern and multimass TDS were observed. In addition, AES revealed adsorbed sulfur after TDS experiments. Thus, SO₂ partially decomposed on Gr/Ru.

中文翻译：

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SO2在石墨烯上的吸附和反应动力学：超高真空表面科学研究

在超高真空条件下，通过热解吸光谱、TDS 和俄歇电子光谱、AES 研究了二氧化硫 SO ₂在外延生长在 Ru(0001)（短 Gr/Ru）上的石墨烯上的吸附。TDS 检测到母体质量，即存在分子吸附/解吸途径。然而，观察到气相碎裂模式和多质量 TDS 的偏差。此外，AES 在 TDS 实验后显示出吸附的硫。因此，SO ₂在Gr/Ru 上部分分解。