Effect of reduction method on the performance of Pd catalysts supported on activated carbon for the selective oxidation of glucose  

作　　者：CHEN KangCheng PAN YunXiang LIU ChangJun 

机构地区：[1]Key Laboratory for Green Chemical Technology of Ministry of Education,School of Chemical Engineering,Tianjin University,Tianjin 300072,China [2]Shanghai Research Institute of Petrochemical Technology,Shanghai 201208,China

出　　处：《Science China Chemistry》2010年第7期1598-1602,共5页中国科学(化学英文版)

基　　金：supported by the National Natural Science Foundation of China (20990223)

摘　　要：The effect of the reduction method on the catalytic properties of palladium catalysts supported on activated carbon for the oxidation of D-glucose was examined.The reduction methods investigated include argon glow discharge plasma reduction at room temperature,reduction by flowing hydrogen at elevated temperature,and reduction by formaldehyde at room temperature.The plasma-reduced catalyst shows the smallest metal particles with a narrow size distribution that leads to a much higher activity.The catalyst characteristics show that the plasma reduction increases the amount of oxygen-containing functional groups,which significantly enhances the hydrophilic property of the activated carbon and improves the dispersion of the metal.The effect of the reduction method on the catalytic properties of palladium catalysts supported on activated carbon for the oxidation of D-glucose was examined.The reduction methods investigated include argon glow discharge plasma reduction at room temperature,reduction by flowing hydrogen at elevated temperature,and reduction by formaldehyde at room temperature.The plasma-reduced catalyst shows the smallest metal particles with a narrow size distribution that leads to a much higher activity.The catalyst characteristics show that the plasma reduction increases the amount of oxygen-containing functional groups,which significantly enhances the hydrophilic property of the activated carbon and improves the dispersion of the metal.

关 键 词：reduction method PLASMA oxidation of glucose Pd catalyst activated carbon 

分 类 号：O643.36[理学—物理化学]