Velocity map images of desorbing oxygen from sub-surface states of Rh(111)

Velocity map images of desorbing oxygen from sub-surface states of Rh(111)
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Rh(111)亚表面态解吸氧的速度图图像

DOI:
10.1039/d2cp03369k
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发表时间:
2022
影响因子:
3.3
通讯作者:
Schäfer, Tim
Schäfer, Tim
中科院分区:
化学2区
文献类型:
--
作者:
Dorst, Arved C.;Güthoff, Friedrich;Schauermann, Daniel;Wodtke, Alec M.;Killelea, Daniel R.;Schäfer, Tim

文献摘要

相似文献

本文采用联合收割机速度图成像(VMI)和程序升温脱附(TPD)实验相结合的方法,记录了Rh(111)表面复合脱附氧的角分辨速度分布。我们分配的速度分布从特定的表面和亚表面状态的解吸通过匹配记录的分布的解吸温度。这些结果提供了深入了解的重组解吸机制和表面催化反应的氧的可用性。
We combine velocity map imaging (VMI) with temperature-programmed desorption (TPD) experiments to record the angular-resolved velocity distributions of recombinatively-desorbing oxygen from Rh(111). We assign the velocity distributions to desorption from specific surface and sub-surface states by matching the recorded distributions to the desorption temperature. These results provide insight into the recombinative desorption mechanisms and the availability of oxygen for surface-catalyzed reactions.