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.
@article{arxiv.cond-mat/0302075,
title = {Effect of a humid environment on the surface structure of RuO2(110)},
author = {Qiang Sun and Karsten Reuter and Matthias Scheffler},
journal= {arXiv preprint arXiv:cond-mat/0302075},
year = {2009}
}
Comments
7 pages including 5 figures, Submitted to Phys. Rev. B., Related publications can be found at http://www.fhi-berlin.mpg.de/th/paper.html