中文摘要：

采用常规浸渍法制备Y2O3修饰的Ni/SiO2催化剂,并考察其催化甲烷部分氧化（POM）制合成气反应性能。结果表明,Y_2O_3的引入减小了金属Ni的粒径,有效提高了Ni在载体表面的分散性,增强了金属Ni与载体SiO_2间的相互作用,从而使催化剂的抗烧结、抗积碳能力,以及催化剂的POM反应性能得以改善。

英文摘要：

A series of Y2O3-modified Ni/SiO2 catalysts were synthesized by a conventional impregnation method. Catalytic performances for the partial oxidation of methane （POM） to synthesis gas were investigated. The addition of Y2O3 promotes a decrease in size of Ni particles supported on silica, increased the dispersion of Ni particles, and enhanced the interaction between Ni and silica. These properties gave the catalysts increased anti-sintering and resistance to carbon deposits. The catalytic behaviors of the Ni-based catalysts for POM were significantly improved when Y2O3 was introduced.