Adsorption and Thermal Stability of Phenylphosphonic Acid on Cerium Oxides.

ABSTRACT: This paper reports on a study of the adsorption and thermal stability of phenylphosphonic acid (PPA) adsorbed by physical vapor deposition on the surfaces of epitaxial cerium oxide films of different structure, stoichiometry and composition. Advanced analytical methods based on photoelectron spectroscopy combined with DFT calculations showed that the binding of PPA to cerium oxide is through the phosphonate group, while the decomposition temperature is defined by the nature of the oxide. Tridentate PPA species are present on all substrates (CeO₂, CeO_1.7, Ce₂O₃, and Ce₆WO₁₂), indicating a strong affinity of PPA for cerium oxide. The presence of vacancies in the oxide influences the molecular orientation. The phenyl ring of th

SUBMITTER: Kalinovych V 

PROVIDER: S-EPMC12400423 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature