【摘要】 在真空条件下,利用程序升温热脱附方法测量CO吸附在SrO表面的脱附谱。实验结果表明,SrO吸附C18O后,在升温过程中可通过氧的同位素交换生成C16O而脱附,同时伴随少量C18O的直接脱附,其波峰温度分别为430 K和420 K,属于二级脱附过程。更多还原

【Abstract】 Thermal desorption of CO on SrO surface in vacuum was studied by temperature programmed desorption（TPD）,quadrupole mass spectrometer（QMS） and Auger electron spectroscopy（AES）.The results show that after C¹⁸O adsorbed on SrO surface,C¹⁶O,which formed in the course of heating because of exchange of oxygen isotopes,elcapes from SrO surface,accompanied by a small amount of C¹⁸O desorption.The desorption peak temperatuers of C¹⁶O and C¹⁸O are 430 K and 420 K,respectively.C¹⁸O desorption on SrO surface is classified as the 2^nd order desorption.更多还原