高等学校化学研究 ›› 1995, Vol. 11 ›› Issue (2): 91-97.
• Articles • 下一篇
An IR Study on Adsorption of CO and NO on Copper Ion-exchanged Zeolite Beta
ZHOU Qun1, QIU Shi-lun1, PANG Wen-qin1, XIN Qin2, LI Guo-qiang2
- 1. Key Laboratory of Inorgaanic Hydrothermal Synthesis, Department of Chemistry, Jilin University, Changchun, 130023;
2. Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023
An IR Study on Adsorption of CO and NO on Copper Ion-exchanged Zeolite Beta
ZHOU Qun1, QIU Shi-lun1, PANG Wen-qin1, XIN Qin2, LI Guo-qiang2
- 1. Key Laboratory of Inorgaanic Hydrothermal Synthesis, Department of Chemistry, Jilin University, Changchun, 130023;
2. Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023
摘要： Thee adsorption of COand NOon copper ion-exchanged zeolite Beta was investigated using IRmethod.It was found that the thermalvacuum pretreatment procedure could result in the reduction of Cu2+ions in zeolite Beta.The adsorption of CO on Cu+ sites in zeolite Beta closely follows Langmuir isotherm.Another Cu+ species may form during the reaction between water and CO.The catalytic decomposition of NO on the zeolite was observed at room temperature,indicating that the decomposition reaction may occur between two coordinated NO ligands of the same dinitrosyhc complex.Furthermore,the appearance of two series of NO adsorption bands reveals that copper ions existing at different cation sites may have different effect on the adsorption and decomposition of NO molecules.