Temperature programmed desorption of weakly bound adsorbates on Au(111)
Temperature programmed desorption of weakly bound adsorbates on Au(111)
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DOI：
10.1016/j.susc.2015.06.010
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发表时间：
2016-08-01
期刊：
影响因子：
1.9
通讯作者：
Schafer, Tim
中科院分区：
文献类型：
--
作者：
Engelhart, Daniel P.;Wagner, Roman J. V.;Schafer, Tim
我们进行了程序升温解吸（TPD）实验，分析了Ar、Kr、Xe、C2H2、SF6、N-2、NO和CO在Au（111）上的解吸动力学。我们报告了解吸活化能（Edes），它是结合能的一个很好的代表。推导出的结合能与分子的极化率有关，这与表面吸附键是由色散力产生的结论一致。所报道的结果为金属表面分子的色散力相互作用理论提供了一个基准。(C) 2015 Elsevier B.V.版权所有
We have performed temperature programmed desorption (TPD) experiments to analyze the desorption kinetics of Ar, Kr, Xe, C2H2, SF6, N-2, NO and CO on Au(111). We report desorption activation energies (Edes), which are an excellent proxy for the binding energies. The derived binding energies scale with the polarizability of the molecules, consistent with the conclusion that the surface-adsorbate bonds arise due to dispersion forces. The reported results serve as a benchmark for theories of dispersion force interactions of molecules at metal surfaces. (C) 2015 Elsevier B.V. All rights reserved.