中文摘要：

通过高温还原法制得磷化钼（MoP）催化剂,采用X射线衍射和原位X射线光电子能谱对其进行了表征,并考察其催化乙炔选择性加氢性能.结果表明,在650oC经H2还原制得的催化剂中形成了大量的低价态物种MoP,但仍含有大量的高价态Mo和P物种,该催化剂具有加氢活性中心和缺电子中心双重功能,在乙炔选择性加氢反应中,乙炔转化率超过99%时,乙烯选择性仍能保持在73%以上.

英文摘要：

A MoP catalyst was prepared by high temperature hydrogen reduction.Its properties were investigated by X-ray diffraction and in-situ X-ray photoelectron spectroscopy.It was used for the selective catalytic hydrogenation of acetylene.The results indicated that MoP is formed by hydrogen reduction at 650 °C.The prepared MoP catalyst contained high valence molybdenum and phosphorus species.The cata-lyst is a bifunctional catalyst,which includes a hydrogenation center and an electron-deficient center.Ethylene selectivity can exceed 73% when the acetylene conversion is higher than 99%.