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Angle-resolved desorption and removal of surface nitrogen in deNOx
Surface Science Reports ( IF 9.8 ) Pub Date : 2018-08-01 , DOI: 10.1016/j.surfrep.2018.07.001
Tatsuo Matsushima , Anton Kokalj

This paper reports on recent progress on angle-resolved desorption leading to structure-sensitive desorption dynamics. The sensitivity is exemplified in NO and N2O reduction on Pd and Rh surfaces. The energy partitioning in the repulsive desorption of hyper-thermal products into their rotational and translational modes is an indispensable concept to examine the structure of a reaction site from desorbing molecules because it connects the structure of a transition state with each energy of desorbed products. The extent of the energy partitioning will be derived from the desorption-angle dependences of both the rotational and translational energies at each vibrational state. Such energy analysis has never been completed for any thermal reactive desorption. A new type of measurement is thus proposed. Additionally, we discuss the inadequate use of the detailed balance principle in desorption dynamics, which has prevented desorption dynamics from being sensitive to surface structures.



中文翻译:

角度分辨脱附和脱氮表面氮的去除

这篇论文报道了导致结构敏感的解吸动力学的角度分辨解吸的最新进展。灵敏度以NO和N 2为例Pd和Rh表面的O减少。高温产物的排斥脱附为其旋转和平移模式的能量分配是检验脱附分子的反应位点结构的必不可少的概念,因为它将过渡态的结构与脱附产物的每种能量连接在一起。能量分配的程度将从每个振动状态下旋转和平移能量的解吸角依赖性得出。对于任何热反应性解吸,从未完成这种能量分析。因此提出了一种新型的测量方法。此外,我们讨论了详细平衡原理的使用不足 在解吸动力学方面,这阻止了解吸动力学对表面结构敏感。

更新日期:2018-08-01
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