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a) Sequence of simultaneous CO and O2 pulses dosed on a Au/CeO2 catalyst pretreated by calcination in 10 % O2/N2 at 400 °C (30 min); (b) CO uptake (•), oxygen uptake (▴) and CO2 formation (⧫) during these pulses. Reprinted with permission from Ref. [36] © 2007, Elsevier Inc.
