Catalysis Letters

, Volume 129, Issue 3–4, pp 400–403 | Cite as

Selective Dissociation of O3 and Adsorption of CO on Various Au Single Crystal Surfaces



The O3 dissociation and CO adsorption on various gold single crystal surfaces were investigated using X-ray photoelectron spectroscopy, temperature-programmed desorption, and polarization modulation infrared reflection absorption spectroscopy (PM-IRAS). Dissociation of O3 proceeded on the Au(111) surface at 323 K, whereas no O3 dissociation occurs on the Au(100) surface, indicating that the O3 dissociation on gold strongly depends on the structure of the gold surface. PM-IRA peaks of CO adsorbed on Au(111) and Au(100) were observed around 2,080 cm−1 at CO pressures above 0.5 Torr at 273 K. On the other hand, the peak of CO adsorbed on step sites was observed at 2,117 cm−1 above 0.01 Torr for Au(311). Thus, CO adsorbed preferentially onto the step sites of the gold surface.


Gold single crystal O3 Dissociation CO Adsorption Step sites Structure sensitivity 



This work was supported by the Japan Science and Technology Agency, JST, CREST.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Research Institute for Innovation in Sustainable ChemistryNational Institute of Advanced Industrial Science and Technology (AIST)Tsukuba, IbarakiJapan

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