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- W1990469294 abstract "We report that the addition of alkali ions (sodium or potassium) to gold on KLTL-zeolite and mesoporous MCM-41 silica stabilizes mononuclear gold in Au-O(OH) x -(Na or K) ensembles. This single-site gold species is active for the low-temperature (<200°C) water-gas shift (WGS) reaction. Unexpectedly, gold is thus similar to platinum in creating –O linkages with more than eight alkali ions and establishing an active site on various supports. The intrinsic activity of the single-site gold species is the same on irreducible supports as on reducible ceria, iron oxide, and titania supports, apparently all sharing a common, similarly structured gold active site. This finding paves the way for using earth-abundant supports to disperse and stabilize precious metal atoms with alkali additives for the WGS and potentially other fuel-processing reactions." @default.
- W1990469294 created "2016-06-24" @default.
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- W1990469294 date "2014-12-19" @default.
- W1990469294 modified "2023-10-16" @default.
- W1990469294 title "Catalytically active Au-O(OH) <i> <sub>x</sub> </i> - species stabilized by alkali ions on zeolites and mesoporous oxides" @default.
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- W1990469294 doi "https://doi.org/10.1126/science.1260526" @default.
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