Structural Transitions Driving Interface Pulses in Methanol Oxidation on Rh(110) and VOx/Rh(110): A LEEM Study
Structural Transitions Driving Interface Pulses in Methanol Oxidation on Rh(110) and VOx/Rh(110): A LEEM Study
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Rh(110) 和 VOx/Rh(110) 甲醇氧化中结构转变驱动界面脉冲:LEEM 研究
DOI:
10.1021/acs.jpcc.1c06106
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Imbihl
中科院分区:
文献类型:
--
作者:
Bernhard von Boehn;Jon-Olaf Krisponeit;Jens Falta;Ronald;Imbihl
With LEEM (low-energy electron microscopy) and micro-LEED asin situtechniques we have studied the structural transitions in the excitation of traveling interface pulses (TIPs) in bistable methanol oxidation on a bare Rh(110) and on a Rh(110) surface covered with a 0.1 monolayer of V oxide in the 10–4mbar range. Close to equistability, a (1×1) structure coexists with O-induced reconstructions of the “missing row” type at the interface. An oxidation pulse traveling along the interface exhibits a substructure consisting of various reconstructions of the “missing row” type; on the reduced surface, the slow development of a c(2×2) structure is accompanied by a strong loss of the (0,0)-beam intensity. The addition of 0.1 monolayer of V oxide increases structural disorder but causes no qualitative changes in the structural transitions.
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DOI:
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发表时间:
1993
期刊:
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作者:
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1993
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Physical Review B (Condensed Matter)
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2017
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1991
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1995
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