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- W2018579214 abstract "La1−xCexMn1−yCoyO3 catalysts were prepared by the “glucose method”. The structures and physico-chemical properties for these catalysts were characterized using X-ray diffraction (XRD), nitrogen adsorption, scanning electron microscopy (SEM), Fourier transform infrared spectra (FT-IR), H2-temperature-programmed reduction (H2-TPR) and O2-tempreature-programmed desorption (O2-TPD). Results showed that cerium substitution at the A-site in LaMnO3 produced a CeO2 phase. The cobalt can be introduced into the B-site in La0.8Ce0.2MnO3 at any substitution ratio because of the similar ionic radii between cobalt and manganese. The catalytic activity for soot combustion in air was evaluated using a TG/DTA analyzer. Cerium substitution at A-site enhances the catalytic activity, while cobalt substitution at B-site inhibits the catalytic activity. The activation energy for soot combustion was calculated using the Horowitz method. The activation energy for non-catalytic soot combustion was 164.1 kJ mol−1. The addition of catalysts decreased the activation energy by about 26–63 kJ mol−1. Among the applied catalysts, Ce20Mn exhibited the lowest activation energy (101.1 kJ mol−1)." @default.
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- W2018579214 date "2014-11-01" @default.
- W2018579214 modified "2023-10-17" @default.
- W2018579214 title "La1−xCexMn1−yCoyO3 perovskite oxides: Preparation, physico-chemical properties and catalytic activity for the reduction of diesel soot" @default.
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- W2018579214 doi "https://doi.org/10.1016/j.matchemphys.2014.07.029" @default.
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