Supported Pt_3(CO)_3(PPh_3)_4 complex was used to prepare highly dis-persed Pt catalysts which provided ideal systems for studying metal-sup-port interaction.

• 本文以CO为探针,采用红外光谱、电子自旋共振谱、化学吸附及其程序升温脱附等方法,研究了由担载于Al_2O_3和TiO_2上的Pt_3(CO)_3(PPh_3)_4络合物制成的分散型Pt 催化剂的表面性质和金属与载体间的相互作用。