Issue Date: September 27, 2010
Alkali Metal Aids Catalysis
The water-gas shift reaction can be catalyzed by platinum dispersed on an inert support aided by an alkali-metal promoter, with Pt-alkali-Ox(OH)y as the key catalytic species, reports a group led by Maria Flytzani-Stephanopoulos of Tufts University and Manos Mavrikakis of the University of Wisconsin, Madison (Science 2010, 329, 1633). The reaction, which converts H2O and CO to H2 and CO2, is used to remove contaminant CO from H2 produced during fuel reforming. To replace air-sensitive . . .
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