摘要
CeO2,MnOx and ZnO were used as supports of Cu-based catalysts respectively in this study.The influences of these supports on the catalyst for CO oxidation in H2-rich gases were investigated.The catalysts were characterized by XRD(X-ray diffraction),BET(BET surface area),TPD(Temperature-programmed desorption) and TPR(Temperature-programmed reduction) methods.The results indicate that CuO/CeO2 catalyst has higher catalytic activity,for CO oxidation than CuO/MnO or CuO/ZnO catalyst.The CO conversion of CuO/CeO2 catalyst at 413K and 433K are 85% and 97%,respectively.Comparing with the other two catalysts,CuO/CeO2 catalyst has larger surface area,pore volume,CO adsorption amount and reduction peak area,while lower CO desorption and reduction temperature.Besides there is a stronger metal-support interaction in CuO/CeO2 catalyst than in other catalysts.All these favour the activity of the catalyst.
CeO2,MnOx and ZnO were used as supports of Cu-based catalysts respectively in this study.The influences of these supports on the catalyst for CO oxidation in H2-rich gases were investigated.The catalysts were characterized by XRD（X-ray diffraction）,BET（BET surface area）,TPD（Temperature-programmed desorption） and TPR（Temperature-programmed reduction） methods.The results indicate that CuO/CeO2 catalyst has higher catalytic activity,for CO oxidation than CuO/MnO or CuO/ZnO catalyst.The CO conversion of CuO/CeO2 catalyst at 413K and 433K are 85% and 97%,respectively.Comparing with the other two catalysts,CuO/CeO2 catalyst has larger surface area,pore volume,CO adsorption amount and reduction peak area,while lower CO desorption and reduction temperature.Besides there is a stronger metal-support interaction in CuO/CeO2 catalyst than in other catalysts.All these favour the activity of the catalyst.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2010年第7期915-919,共5页
Chemical Research and Application
基金
江西省自然科学基金(2007GZH2643)项目资助
关键词
载体
CuO催化剂
CO选择性氧化
富氢
supports
CuO catalysts
CO selectivity oxidition
H2-Rich Gases
