【摘要】 利用TP-IR（程温-红外）动态方法研究了由Rh₄（CO）₁₂衍生的Rh₄/Al₂O₃上H₂对CO吸附类型的影响。结果表明,室温CO和H₂共吸附,在Rh^I中心上导致2050cm^-1谱带出现,归属为;在线式中心上导致2006cm^-1谱带出现,归属为;在桥式中心上,在 流动的H₂中CO气相不存在)则导致生成。在CO和H₂中或在流动的H₂中程序升更多还原

【Abstract】 Effect of H2 adsorption on the types of CO adsorption over Rh4/ A12O3 derived from Rh4(CO)12 has been studied in detail by using TP-IR dynamic method. It was found that at room temperature the co-adsorption of CO and H2 on Rh1 sites leads to the appearance of the band at 2050cm-1, which is attributed to the formation of HRh1-CO5 on linear sites the appearance of the band at 2006 cm-1 is attributed to the formation of HRh-CO; on bridge sites in H2 flow the appearance of theband at 1797cm-1 is attributed to the formation of . During TPin CO and H2(or in H2 flow),the transformation of HRh1-CO to HxRh1 -CO on Rh1 sites and HRh-CO to H0Rh-CO on linear sites occur.更多还原