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应用酸碱滴定、X射线衍射（XRD）、激光拉曼（LRS）和顺磁共振（EPR）等方法研究了磷钼酸（PMo（12））与γ－Al2O3载体间的相互作用．结果表明，PMo（12）在γ－Al2O3上随负载量增加出现三种不同的分散状态，据此提出了PMo（12）在γ－Al2O3上的铺展模型．
The interaction between phosphomolybdic acid (PMo (12)) and γ-Al2O3 was investigated by acid-base titration, X-ray diffraction (XRD), laser Raman spectroscopy (LRS) and paramagnetic resonance (EPR) The results show that PMo (12) exhibits three different dispersion states on γ-Al2O3 with increasing loading, and a model of PMo (12) spreading on γ-Al2O3 is proposed.