【摘要】 用ＴＰＤ－ＭＳ、ＴＰＳＲ－ＭＳ及ＣＯ氧化活性测定等方法研究了Ｐｔ／Ａｌ２Ｏ３和掺杂超细ＺｒＯ２的样品的表面氧脱出－恢复性能、ＣＯ表面氧化性能及催化氧化性能．结果表明，在Ｐｔ／Ａｌ２Ｏ３中掺杂ＺｒＯ２后，样品表面上的氧物种脱出和氧化恢复性能明显提高，脱氧量也明显增大；并发现在ＣＯ－ＴＰＳＲ过程中程脱物ＣＯ２的脱附量大小及峰顶温度次序与对ＣＯ的催化氧化活性也有一致的关系更多还原

【Abstract】 O 2 TPD, CO TPSR and catalytic activity of CO oxidation on Pt/Al 2O 3 and Pt/Al 2O 3 ZrO 2 (ultrafine particles) were studied by TPD MS, TPSR MS and flowing reaction method. It was shown that adding ZrO 2 would promote the desorption and renewal of oxygen species on the catalyst, while the amount of desorbed oxygen also increased. In TPSR of CO, it was found that the desorbed amount of CO 2 and the peak temperature follow the same order as their activities.更多还原