Spectroscopic study of amino acids adsorption on pyrite surface: From vacuum to solution conditions.
Abstract
We characterized the adsorption of cystine molecules among other amino acids on pyrite surface via X-ray photoelectron spectroscopy. A novel comparative analysis revealed remarkable differences with respect to molecular adsorption and surface chemistry induced by environmental conditions. Pyrite is a highly reactive surface and contains two crucial types of surface functional groups that drive molecular chemistry on the surface depending on the surrounding conditions. Therefore, the systems explored in this study hold interesting implications for supporting catalyzed prebiotic chemistry reactions.
- Publication:
-
European Planetary Science Congress
- Pub Date:
- October 2015
- Bibcode:
- 2015EPSC...10...72M