Title of article
SO2 adsorption and thermal evolution on clean and oxygen precovered Pt(1 1 1)
Author/Authors
Regine Streber، نويسنده , , R. and Papp، نويسنده , , C. and Lorenz، نويسنده , , M.P.A. and Hِfert، نويسنده , , O. and Darlatt، نويسنده , , E. and Bayer، نويسنده , , A. and Denecke، نويسنده , , R. and Steinrück، نويسنده , , H.-P.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
5
From page
188
To page
192
Abstract
We studied the adsorption and reaction of sulfur dioxide on clean and oxygen precovered platinum surfaces by in situ high resolution X-ray photoelectron spectroscopy and discuss earlier, contradicting results. On the clean surface we find flat lying and upright standing SO2, adsorbing in similar amounts at low temperature. Upon heating, the ratio changes strongly favoring the standing SO2; subsequently almost all SO2 desorbs. On the oxygen precovered surface the standing SO2 is preferably populated and even at low temperatures a direct reaction of SO2 to SO3 occurs. Upon heating, SO2 oxidation to SO3 and subsequently to SO4 is found.
Journal title
Chemical Physics Letters
Serial Year
2010
Journal title
Chemical Physics Letters
Record number
1929523
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