The Role of Oxides in Catalytic CO Oxidation over Rhodium and Palladium

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title = "The Role of Oxides in Catalytic CO Oxidation over Rhodium and Palladium",
abstract = "Catalytic CO oxidation is a seemingly simple reaction between CO and O2 molecules, one of the reactions in automotive catalytic converters, and the fruit-fly reaction in model catalysis. Surprisingly, the phase responsible for the catalytic activity is still under debate, despite decades of investigations. We have performed a simple but yet conclusive study of single crystal Rh and Pd model catalysts, resolving this controversy. For Rh, the oxygen-covered metallic surface is more active than the oxide, while for Pd, thin oxide films are at least as active as the metallic surface, but a thicker oxide is less active. Apart from resolving a long-standing debate, our results pinpoint important design principles for oxidation catalysts as to prevent catalytic extinction at high oxygen exposures.",
keywords = "active phase, CO oxidation, oxidation catalysis, oxide, palladium, rhodium, surface oxide",
author = "Johan Gustafson and Olivier Balmes and Chu Zhang and Mikhail Shipilin and Andreas Schaefer and Benjamin Hagman and Merte, {Lindsay R.} and Martin, {Natalia M.} and Carlsson, {Per Anders} and Maciej Jankowski and Crumlin, {Ethan J.} and Edvin Lundgren",
year = "2018",
month = "5",
day = "4",
doi = "10.1021/acscatal.8b00498",
language = "English",
volume = "8",
pages = "4438--4445",
journal = "ACS Catalysis",
issn = "2155-5435",
publisher = "The American Chemical Society",
number = "5",