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- W3154809967 abstract "Herein, the nanocatalysts of Ag nanoparticles (NPs) coated on anatase TiO2-n% nanocrystals with co-exposed {1 0 1} and {0 0 1} facets were elaborately constructed by the urea-induced hydrothermal method. The ratios (n%) of exposed {0 0 1} facet in TiO2 nanocrystals are adjusted in the range of 8–79%. Ag/TiO2-n% catalysts exhibited excellent the exposed {0 0 1} facet-dependent catalytic activity during soot combustion. Ag/TiO2-79% catalyst shows the highest catalytic activity (T50 = 364 °C, TOF = 0.174 h−1 at 310 °C) and the lowest apparent activation energy (84 kJ mol−1). Combination in-situ Raman spectra and density functional theory (DFT) calculations, the catalytic mechanism is proposed: the active sites locate at the interface between Ag and {0 0 1} facet of TiO2-n% nanocrystal, and the synergy effect of coordinatively unsaturated Ti5c and adjacent Ag atoms boosts the key step of O2 activation. It highlights an effective strategy to develop high-efficient catalysts by the crystal facet engineering of metal oxides during oxidation reaction." @default.
- W3154809967 created "2021-04-26" @default.
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- W3154809967 date "2021-06-01" @default.
- W3154809967 modified "2023-10-18" @default.
- W3154809967 title "Exposed {0 0 1} facet of anatase TiO2 nanocrystals in Ag/TiO2 catalysts for boosting catalytic soot combustion: The facet-dependent activity" @default.
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- W3154809967 doi "https://doi.org/10.1016/j.jcat.2021.04.015" @default.
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