摘要
应用量子化学的密度泛函理论(DFT),研究了NOx(NO,N2O)分子在Cu-ZSM—5改性分子筛上的吸附。计算采用7T簇模型和B3LYP/6-31G(d,p)方法,得到了Cu-ZSM—5分子筛吸附NOx分子的吸附能和红外光谱。计算结果表明,NO和N2O分子均以η1-N模式吸附于Cu-ZSM—5分子筛上;以上两种分子在Cu-ZSM—5分子筛上吸附时,Cu离子优先吸附NO分子;N2O以η1-N模式吸附时有利于N-O键的断裂。
Density functional theory (DFT) was applied to study the adsorption of NO, (NO, N2 O) molecules on the H-ZSM--5 zeolite. The calculation was carried out at B3LYP/6-31G(d,p) level based on the 7T cluster model. A and N20 bilities of vantazeous to the cleavable of N--O band of N~ O molecule that are proposed NO And the adsorption a- The -ql-N model is ad-
出处
《科学技术与工程》
北大核心
2013年第12期3381-3384,共4页
Science Technology and Engineering