%0 Journal Article %1 Abbet2001 %A Abbet, S %A Heiz, U %A Hakkinen, H %A Landman, U %D 2001 %J Phys. Rev. Lett. %K CLUSTERS, GENERATION, GOLD, MGO, PSEUDOPOTENTIALS, SUM-FREQUENCY SURFACES; Surface microcalorimetry, %N 26 %P 5950--5953 %T CO oxidation on a single Pd atom supported on magnesia %U http://apps.isiknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=6&SID=P1hOHn6lgpFmaf2K99H&page=1&doc=6&cacheurlFromRightClick=no %V 86 %X The oxidation of CO on Single Pd atoms anchored to MgO(100) surface oxygen vacancies is studied with: temperature-programmed-reaction mass spectrometry and infrared spectroscopy. In one-heating-cycle experiments, CO2, formed from O-2 and CO preadsorbed at 90 K, is detected at 260 and 500 K. Ab-initio simulations suggest two reaction routes, with Pd(CO)(2)O-2 and PdCO3CO found as precursors for the low and high temperature channels, respectively. Both reactions result in annealing of the vacancy and induce migration and coalescence of the remaining Pd-CO to form larger clusters.

@article{Abbet2001, abstract = {The oxidation of {CO} on Single Pd atoms anchored to {MgO(100)} surface oxygen vacancies is studied with: temperature-programmed-reaction mass spectrometry and infrared spectroscopy. In one-heating-cycle experiments, {CO2,} formed from O-2 and {CO} preadsorbed at 90 K, is detected at 260 and 500 K. Ab-initio simulations suggest two reaction routes, with {Pd(CO)(2)O-2} and {PdCO3CO} found as precursors for the low and high temperature channels, respectively. Both reactions result in annealing of the vacancy and induce migration and coalescence of the remaining {Pd-CO} to form larger clusters.}, added-at = {2009-10-30T10:04:05.000+0100}, author = {Abbet, S and Heiz, U and Hakkinen, H and Landman, U}, biburl = {https://www.bibsonomy.org/bibtex/224ca75dd945bdc8cd3692f614dd6a66d/jfischer}, groups = {public}, interhash = {0cc4bc0b37046b51fc668a2aa9d1fbeb}, intrahash = {24ca75dd945bdc8cd3692f614dd6a66d}, issn = {0031-9007}, journal = {Phys. Rev. Lett.}, keywords = {CLUSTERS, GENERATION, GOLD, MGO, PSEUDOPOTENTIALS, SUM-FREQUENCY SURFACES; Surface microcalorimetry,}, month = {June}, number = 26, pages = {5950--5953}, timestamp = {2009-10-30T10:04:05.000+0100}, title = {CO oxidation on a single Pd atom supported on magnesia}, url = {http://apps.isiknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=6&SID=P1hOHn6lgpFmaf2K99H&page=1&doc=6&cacheurlFromRightClick=no}, volume = 86, year = 2001 }