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采用高纯氮保护，以吡啶作为探针分子，利用程序升温脱附－付里叶变换红外光谱（ＴＰＤ－ＦＴＩＲ）法，对杂多酸（Ｈ３ＰＭｏ１１ＶＯ４０、Ｈ３ＡｓＭｏ１１ＶＯ４０）催化剂表面酸类型进行了表征。实验结果表明，Ｈ３ＰＭｏ１１ＶＯ４０、Ｈ３ＡｓＭｏ１１ＶＯ４０吸附吡啶后同时存在Ｂ酸及Ｌ酸中心。
The surface acidity of H3PMo11VO40, H3AsMo11VO40 catalysts was characterized by temperature-programmed desorption-Fourier transform infrared spectroscopy (TPD-FTIR) with high purity nitrogen and pyridine as probe molecules. The experimental results show that, H3PMo11VO40, H3AsMo11VO40 adsorption pyridine after the presence of B acid and L acid center.