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Biphasic Pd-Au alloy catalyst for low-temperature CO oxidation

Xu, Jing; White, Timothy; Li, Ping; He, Chongheng; Yu, Jianguo; Yuan, Weikang; Han, Yi-Fan


Low-temperature CO oxidation over a compositional series of Pd-Au nanoalloy catalysts supported on silica fume was studied. Except for the pure metals, these materials invariably showed biphasic separation into palladium- and gold-rich components. Performance was optimal for a catalyst of bulk composition Pd4Au1, a mixture of Pd90Au10 (72.5 at. %) and Pd31Au69 (27.5 at. %), that was remarkably active at 300 K and more stable than a pure Au catalyst. For bulk materials dominated by Pd (Pd:Au =...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Journal of the American Chemical Society
DOI: 10.1021/ja102617r


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