采用室温固相法制备了具有Keggin结构的杂多酸铯盐催化剂(CsxH3+n-xPMo12-nVnO40,n=0,1,2,x=0.5～3.0).红外、X射线粉末衍射及循环伏安技术研究显示,钒取代钼原子可提高催化剂的氧化还原性,铯取代数的增加可提高催化剂的疏水性但降低氧化还原性.在H2O2为氧化剂的苯羟基化反应中,随着铯取代数目的增加,催化剂的溶脱情况得到明显改善.在氧化还原性和疏水性协同作用下,Cs2H3PMo10V2O40在CsxH3+n-xPMo12-nVnO40系列催化剂中显示出相对最佳的苯羟基化催化活性(苯酚收率19.2%)和重复使用性能. (CsxH3 + n-xPMo12-nVnO40, n = 0, 1, 2, x = 0.5-3.0) was prepared by solid-state reaction at room temperature using infrared spectroscopy, X-ray powder diffraction and cyclic voltammetry An technology research shows that vanadium substitution of molybdenum atoms can increase the redox activity of the catalyst, the increase of cesium substitution can improve the hydrophobicity of the catalyst but reduce the redox activity.In the benzene hydroxylation of H2O2 as oxidant, with the number of cesium substitution , And the stripping efficiency of the catalyst was significantly improved.Catalyst Cs2H3PMo10V2O40 showed the best catalytic activity in the CsxH3 + n-xPMo12-nVnO40 series catalyst (phenol yield 19.2 %) And reuse performance.