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中文摘要：
通过浸渍法和硫引入贵金属法分别制备了主要负载在介孔碳主孔道（MPC/Pd-1）和负载在介孔碳孔壁上小介孔中[MPC/（S）Pd-2]的两类负载型钯电催化剂,用XRD,SEM,TEM和电化学等方法表征了其结构和电催化性能.循环伏安结果表明,有序介孔碳载钯催化剂MPC/Pd-1和MPC/（S）Pd-2对甲酸氧化的催化活性分别是商用钯黑催化剂的4.0和2.4倍.MPC/Pd-1中的钯位于介孔碳的主孔道上,增加了催化剂/电解质/反应物三相界面的面积,使得其比MPC/（S）Pd-2的催化活性更高.
英文摘要：
Ordered mesoporous carbon（MPC） supported palladium catalysts were prepared by impregnation（MPC/Pd-1） and the method of using sulfur to embed noble metal,respectively.The properties of the MPC/Pd were investigated by XRD,HRTEM,BET and electrochemical methods.Cyclic voltammetry and current-time curve show that MPC/Pd exhibits a very high catalytic activity for the oxidation of formic acid,which is 4.0（MPC/Pd-1） and 2.4 times that of commercial Pd black.Pd nanoparticles on MPC/Pd-1 are confined in the pores of MPC（5—6 nm）,which increases the reaction interfaces of the three-phase boundary（catalyst-electrolyte-reactive）,whereas Pd nanoparticles on MPC/（S）Pd-2 are loaded inside the small mesoporous of the pore wall（2—3 nm）,which decreases utilization of the catalyst.
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