Effect of a humid environment on the surface structure of RuO2(110)

Abstract

Combining density-functional theory and thermodynamics we compute the phase diagram of surface structures of rutile RuO2 (110) in equilibrium with water vapor in the complete range of experimentally accessible gas phase conditions. Through the formation of hydroxyl or water-like groups, already lowest concentrations of hydrogen in the gas phase are sufficient to stabilize an oxygen-rich polar oxide termination even at very low oxygen pressure.

arXiv comment7 pages including 5 figures, Submitted to Phys. Rev. B., Related publications can be found at http://www.fhi-berlin.mpg.de/th/paper.html

References in corpus (4)

• Composition, structure and stability of RuO_2(110) as a function of oxygen pressure
• The hematite (alpha-Fe_2 O_3) (0001) surface: evidence for domains of distinct chemistry
• The Effect of the Environment on alpha-Al_2O_3 (0001) Surface Structures
• First-principles, atomistic thermodynamics for oxidation catalysis

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