用共振增强双光子电离法实时研究甲烷无氧芳构化反应的诱导期  

Real-Time Study of Induction Period of Methane Aromatization by Resonance-Enhanced Two-Photon Ionization

作　　者：门立杰[1] 白吉玲[1] 沙国河[1] 刘中民[2] 解金春[1] 

机构地区：[1]中国科学院大连化学物理研究所分子反应动力学国家重点实验室,大连116023 [2]中国科学院大连化学物理研究所,大连116023

出　　处：《催化学报》2001年第3期294-296,共3页

摘　　要：The induction period of dehydrogenation and aromatization of methane over Mo/HZSM 5 was studied by real time resonance enhanced two photon ionization (RE2PI) technique. It is found that the formation of benzene evidently involves three different stages during the induction period. This probably means that the active sites of the catalysts undergo a transformation from Mo 6+ species to lower valence Mo species, and the Mo 6+ species also has feeble catalytic activity.The induction period of dehydrogenation and aromatization of methane over Mo/HZSM-5 was studied by real-time resonance-enhanced two-photon ionization (RE2PI) technique. It is found that the formation of benzene evidently involves three different stages during the induction period. This probably means that the active sites of the catalysts undergo a transformation from Mo6+ species to lower valence Mo species, and the Mo6+ species also has feeble catalytic activity.

关 键 词：共振增强双光子电离法 甲烷 芳构化 诱导期 天然气 催化转化 芳烃 催化剂 催化反应 钼 HZSM-5分子筛 

分 类 号：O621[理学—有机化学]