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About the Cover

Cover Figure


COVER The transition state for the catalytic oxidation of carbon monoxide (CO) by a hydroxyl intermediate over a model platinum/ruthenium surface in solution, as determined by quantum mechanical calculations. This path removes CO from the anode of a proton exchange membrane fuel cell. Platinum, ruthenium, carbon, oxygen, and hydrogen atoms are colored turquoise, yellow, green, red, and white, respectively. 1683 [Image: Matthew Neurock]

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Science. ISSN 0036-8075 (print), 1095-9203 (online)