Toluene Combustion over Pd-Ce0.4Zr0.6O2 Directly Washcoated Monolithic Catalysts
来源期刊：Journal of Rare Earths2007年第6期
论文作者：赵雷洪 张庆豹 罗孟飞 滕波涛 谢云龙
文章页码：715 - 720
摘 要：A Ce0.4Zr0.6O2 washcoat was prepared using an impregnation method, which acted as a host for the active Pd component to prepare a Pd-Ce0.4Zr0.6O2/substrate monolithic catalyst for toluene combustion. The catalyst was characterized by scanning electron microscopy （SEM）, Raman spectroscopy, Brunauner-Emmett-Teller （BET）, and carbon monoxide temperature-programmed reduction （CO-TPR）. It was found that the washcoat had strong vibration-shock resistance according to an ultrasonic test. The Pd-Ce0.4Zr0.6O2/substrate monolithic catalyst calcined at 400 ℃ showed 95% toluene conversion at a temperature as low as 210 ℃. Furthermore, the lowest temperature for 95% toluene conversion was increased by 40 ℃ after the catalyst calcined at 900 ℃, indicating that the catalyst had good thermal stability. The results revealed that the developed catalyst in this study was promising for eliminating volatile organic compounds （VOCs）.
赵雷洪，张庆豹，罗孟飞，滕波涛，谢云龙
摘 要：A Ce0.4Zr0.6O2 washcoat was prepared using an impregnation method, which acted as a host for the active Pd component to prepare a Pd-Ce0.4Zr0.6O2/substrate monolithic catalyst for toluene combustion. The catalyst was characterized by scanning electron microscopy （SEM）, Raman spectroscopy, Brunauner-Emmett-Teller （BET）, and carbon monoxide temperature-programmed reduction （CO-TPR）. It was found that the washcoat had strong vibration-shock resistance according to an ultrasonic test. The Pd-Ce0.4Zr0.6O2/substrate monolithic catalyst calcined at 400 ℃ showed 95% toluene conversion at a temperature as low as 210 ℃. Furthermore, the lowest temperature for 95% toluene conversion was increased by 40 ℃ after the catalyst calcined at 900 ℃, indicating that the catalyst had good thermal stability. The results revealed that the developed catalyst in this study was promising for eliminating volatile organic compounds （VOCs）.
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