Surface chemistry of rare-earth oxide surfaces at ambient conditions: reactions with water and hydrocarbons.

ABSTRACT: Rare-earth (RE) oxide surfaces are of significant importance for catalysis and were recently reported to possess intrinsic hydrophobicity. The surface chemistry of these oxides in the low temperature regime, however, remains to a large extent unexplored. The reactions occurring at RE surfaces at room temperature (RT) in real air environment, in particular, in presence of polycyclic aromatic hydrocarbons (PAHs), were not addressed until now. Discovering these reactions would shed light onto intermediate steps occurring in automotive exhaust catalysts before reaching the final high operational temperature and full conversion of organics. Here we first address physical properties of the RE oxide, nitride and fluoride surfaces modified by exposure to ambient air and then we report a room tempe

SUBMITTER: Kulah E 

PROVIDER: S-EPMC5361147 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature