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利用TP-IR动态方法研究了CO和NO在Rh/Al2O3上的吸附性能和相互作用的动态行为.结果表明,Rh/Al2O3的孪生中心对CO的吸附强于对NO的吸附,线式和桥式中心则对NO的吸附强于对CO的吸附.CO和NO共吸附-TP(CO和NO中)-IR动态过程结果揭示出2224cm-1谱带的出现和强度的增加与孪生CO谱带以及吸附的NO谱带的强度减弱同时发生,表明是由吸附的NO和孪生CO形成了Rh-NCO.
The dynamic behavior of CO and NO adsorption on Rh / Al2O3 and their interaction were investigated by TP-IR dynamic method. The results show that the adsorption of CO on Rh / Al2O3 twin nucleus is stronger than that on NO, while the linear and bridging centers are more effective for NO adsorption than CO sorption. The results of CO and NO co-adsorption-TP (CO and NO NO) -IR dynamic process reveal that the presence and intensity increase of 2224cm-1 bands coincident with the weakening of twin CO band and adsorbed NO band, indicating that Rh-NCO is formed from adsorbed NO and twin CO.