典型文献
15N/14N Isotopic Exchange in the Dissociative Adsorption of N2 on Tantalum Nitride Cluster Anions Ta3N3-
文献摘要：
Adsorption and activation of dinitrogen(N2)is an indispensable process in nitrogen fixation.Metal nitride species continue to attract at-tention as a promising catalyst for ammonia synthesis.However,the detailed mechanisms at a molecular level between reactive nitride species and N2 remain unclear at elevated tem-perature,which is important to understand the temperature effect and narrow the gap between the gas phase system and condensed phase sys-tem.Herein,the 14N/15N isotopic exchange in the reaction between tantalum nitride cluster anions Ta314N3-and 15N2 leading to the re-generation of 14N2/14N15N was observed at elevated temperature(393-593 K)using mass spectrometry.With the aid of theoretical calculations,the exchange mechanism and the effect of temperature to promote the dissociation of N2 on Ta3N3-were elucidated.A com-parison experiment for Ta314N4-/15N2 couple indicated that only desorption of 15N2 from Ta314N415N2-took place at elevated temperature.The different exchange behavior can be well understood by the fact that nitrogen vacancy is a requisite for the dinitrogen activation over metal nitride species.This study may shed light on understanding the role of nitrogen vacancy in nitride species for ammonia synthesis and provide clues in designing effective catalysts for nitrogen fixation.
文献关键词：
中图分类号：
作者姓名：
Zi-Yu Li;Li-Hui Mou;Gui-Duo Jiang;Qing-Yu Liu;Sheng-Gui He
作者机构：
State Key Laboratory for Structural Chemistry of Unstable and Stable Species,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Zi-Yu Li;Li-Hui Mou;Gui-Duo Jiang;Qing-Yu Liu;Sheng-Gui He-.15N/14N Isotopic Exchange in the Dissociative Adsorption of N2 on Tantalum Nitride Cluster Anions Ta3N3-)[J].化学物理学报（英文版）,2022(01):77-85
A类：
Dissociative,Anions,Ta3N3,Ta314N3,14N2,14N15N,Ta314N4,Ta314N415N2
B类：
Isotopic,Exchange,Adsorption,Tantalum,Nitride,Cluster,activation,dinitrogen,indispensable,process,fixation,Metal,nitride,species,continue,attract,tention,promising,ammonia,synthesis,However,detailed,mechanisms,molecular,level,between,reactive,remain,unclear,elevated,which,important,temperature,narrow,gap,gas,phase,system,condensed,Herein,isotopic,exchange,reaction,tantalum,cluster,anions,leading,generation,was,observed,using,mass,spectrometry,With,aid,theoretical,calculations,promote,dissociation,were,elucidated,com,parison,experiment,couple,indicated,that,only,desorption,from,took,place,different,behavior,well,understood,by,fact,vacancy,requisite,over,metal,This,study,may,shed,light,understanding,role,provide,clues,designing,effective,catalysts
AB值：
0.485224
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
