%0 Journal Article %1 Abbet2002 %A Abbet, S %A Ferrari, AM %A Giordano, L %A Pacchioni, G %A Hakkinen, H %A Landman, U %A Heiz, U %D 2002 %J SURFACE SCIENCE %K , ACETYLENE, APPROXIMATION, CLUSTERS, CO ENERGY, GOLD, OXIDATION, PD(111), REACTIVITY, SITES SUPPORTED SURFACE, mgo model pd, system, %N 1-3 %P 249--255 %R 10.1016/S0039-6028(02)01637-0 %T Pd-1/MgO(100): a model system in nanocatalysis %V 514 %X Nanocatalysts consist of small size-selected clusters adsorbed on uniform sites of a support material. Here, we focus on a simple model system, which is fabricated by soft-landing atomic Pd ions on oxygen vacancies (F-centers) of a MgO(1 0 0) surface (Pd-1 /MgO(F-s)). We used thermal desorption and infrared spectroscopies (TDS, FTIR) to study the acetylene polymerization and the CO oxidation catalyzed by this system. In one-heating-cycle experiments, only the formation of benzene is observed during the polymerization reaction and the combustion of CO leads to the formation of CO, detected at 260 and 500 K. Experimental results in combination with ab initio calculations reveal the mechanisms of these reactions and demonstrate the role of surface defects in nanocatalysis. (C) 2002 Elsevier Science B.V. All rights reserved.

@article{Abbet2002, abstract = {Nanocatalysts consist of small size-selected clusters adsorbed on uniform sites of a support material. Here, we focus on a simple model system, which is fabricated by soft-landing atomic Pd ions on oxygen vacancies {(F-centers)} of a {MgO(1} 0 0) surface {(Pd-1} {/MgO(F-s)).} We used thermal desorption and infrared spectroscopies {(TDS,} {FTIR)} to study the acetylene polymerization and the {CO} oxidation catalyzed by this system. In one-heating-cycle experiments, only the formation of benzene is observed during the polymerization reaction and the combustion of {CO} leads to the formation of {CO,} detected at 260 and 500 K. Experimental results in combination with ab initio calculations reveal the mechanisms of these reactions and demonstrate the role of surface defects in nanocatalysis. {(C)} 2002 Elsevier Science {B.V.} All rights reserved.}, added-at = {2009-07-21T14:59:06.000+0200}, author = {Abbet, S and Ferrari, AM and Giordano, L and Pacchioni, G and Hakkinen, H and Landman, U and Heiz, U}, biburl = {https://www.bibsonomy.org/bibtex/2d2c0a002e1d58f758c9ae2a08065a220/jfischer}, doi = {10.1016/S0039-6028(02)01637-0}, groups = {public}, interhash = {a521241c1742558eab978c55e259e51e}, intrahash = {d2c0a002e1d58f758c9ae2a08065a220}, issn = {0039-6028}, journal = {SURFACE SCIENCE}, keywords = {, ACETYLENE, APPROXIMATION, CLUSTERS, CO ENERGY, GOLD, OXIDATION, PD(111), REACTIVITY, SITES SUPPORTED SURFACE, mgo model pd, system,}, month = {August}, number = {1-3}, pages = {249--255}, timestamp = {2009-07-21T14:59:06.000+0200}, title = {Pd-1/MgO(100): a model system in nanocatalysis}, volume = 514, year = 2002 }