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- W2008561331 abstract "Three-dimensionally ordered macroporous (3DOM) Mn2O3 and its supported gold (xAu/3DOM Mn2O3, x = 1.9−7.5 wt%) nanocatalysts were prepared using the polymethyl methacrylate-templating and polyvinyl alcohol-protected reduction methods, respectively. The 3DOM Mn2O3 and xAu/3DOM Mn2O3 samples exhibited a surface area of 34−38 m2/g. The Au nanoparticles (NPs) with a size of 3.0−3.5 nm were uniformly dispersed on the skeletons of 3DOM Mn2O3. The 5.8Au/3DOM Mn2O3 sample performed the best, giving the T90% (the temperature required for a conversion of 90%) of −15 °C at space velocity (SV) = 20,000 mL/(g h) for CO oxidation and 244 °C at SV = 40,000 mL/(g h) for toluene oxidation. The apparent activation energies (30 and 54 kJ/mol) over 5.8Au/3DOM Mn2O3 were much lower than those (80 and 95 kJ/mol) over 3DOM Mn2O3 for CO and toluene oxidation, respectively. The effects of SV, water vapor, CO2, and SO2 on catalytic activity were also examined. It is concluded that the excellent catalytic performance of 5.8Au/3DOM Mn2O3 was associated with its high oxygen adspecies concentration, good low-temperature reducibility, and strong interaction between Au NPs and 3DOM Mn2O3 as well as high-quality porous architecture." @default.
- W2008561331 created "2016-06-24" @default.
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- W2008561331 date "2014-08-01" @default.
- W2008561331 modified "2023-10-17" @default.
- W2008561331 title "Preparation and high catalytic performance of Au/3DOM Mn2O3 for the oxidation of carbon monoxide and toluene" @default.
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- W2008561331 doi "https://doi.org/10.1016/j.jhazmat.2014.07.033" @default.
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