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- W2004184540 abstract "A series of Al-substituted La1−xAlxMnO3 (x = 0 − 0.3) catalysts were prepared using a sol–gel method and tested for 1,2-dichloroethane oxidation in order to investigate the effects of Al-doping and thermal treatment on the catalyst structures and catalytic behaviors. It was found that both Al-doping and thermal treatment had great influence on the activities of the catalysts, and the highest activity was obtained on a La0.8Al0.2MnO3 catalyst calcined at 700 °C, with a T50 of 295 °C. The enhanced activity could be attributed to synergetic effects of its high surface area, high reducibility and surface acidity, as evidenced by various characterizations such as H2 temperature-programmed reduction and NH3 temperature-programmed desorption. However, comparisons of the areal specific reaction rates revealed that the catalysts calcined at 900 °C had much higher rates than the ones calcined at 500 and 700 °C, suggesting that structural properties of the catalysts exerted much stronger influence on the catalytic performance than the surface area. It was also evidenced that the reducibility of the catalyst had a dominant role in determining the intrinsic activity, which was closely related to the presence of high valent Mn4+ species in the catalyst as induced by the introduction of Al in the catalyst." @default.
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- W2004184540 date "2014-07-01" @default.
- W2004184540 modified "2023-10-16" @default.
- W2004184540 title "Enhanced activity for catalytic oxidation of 1,2-dichloroethane over Al-substituted LaMnO3 perovskite catalysts" @default.
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- W2004184540 doi "https://doi.org/10.1016/j.apsusc.2014.04.012" @default.
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