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- W2890571336 abstract "Abstract Size‐controlled Au colloids in the range of 2–5 nm are synthesized in aqueous phase solution and deposited on TiO 2 , yielding Au/TiO 2 catalysts containing relatively uniform gold particles with mean sizes of 2.2, 3.4, and 4.8 nm. Detailed structural analyses verify that the shape of Au particles evolve from a flat polyhedral to a rounded truncated‐octahedron when increasing the size from 2.2 to 4.8 nm because smaller gold particles have a higher adhesion energy on TiO 2 . The atomic configurations of Au particles and the Au‐TiO 2 interfacial perimeters are quantitatively analyzed as a function of Au particle size. Smaller gold particles show apparently much higher activity for low‐temperature oxidation of CO than the big ones, primarily because of the rich number of active sites at the interfaces. Specific reaction rates, normalized with the total length of the interfacial perimeters in the catalysts, however, are essentially identical. This suggests that the size effect of Au particles, in the range of 2–5 nm, originates from the bonding strength between Au nanoparticles and TiO 2 surfaces." @default.
- W2890571336 created "2018-09-27" @default.
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- W2890571336 date "2018-09-18" @default.
- W2890571336 modified "2023-10-14" @default.
- W2890571336 title "Size‐Dependency of Gold Nanoparticles on TiO <sub>2</sub> for CO Oxidation" @default.
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- W2890571336 doi "https://doi.org/10.1002/smtd.201800273" @default.
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