期刊
CHEMPHYSCHEM
卷 14, 期 11, 页码 2419-2425出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201300418
关键词
band bending; metal oxides; ozone; surface chemistry; x-ray photoelectron spectroscopy
资金
- Swiss National Science Foundation [130175]
- Office of Science, Office of Basic Energy Sciences, and by the Division of Chemical Sciences, Geosciences, and Biosciences of the U.S. Department of Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]
Ozone adsorption and decomposition on metal oxides is of wide interest in technology and in atmospheric chemistry. Here, ozone-adsorption-induced band bending is observed on Ti-and Fe-oxide model surfaces under dry and humid conditions. Photoelectron spectroscopic studies indicate the effect of charge transfer to O-3, which limits the surface coverage of the precursor to decomposition reactions. This is also consistent with the negative pressure dependence observed in previous studies. These results contribute to our fundamental understanding of ozone adsorption and decomposition mechanisms on metal oxides of environmental and technological relevance.
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