Surface structural transformations during ammonia oxidation on Rh(110).
Surface structural transformations during ammonia oxidation on Rh(110).
复制标题
Rh(110) 氨氧化过程中的表面结构转变。
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
Bowker
中科院分区：
文献类型：
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作者：
Kiskinova;Baraldi;Rosei;Dhanak;Thornton;Leibsle;Bowker
在 Rh(110) 上氨氧化过程中，通过扫描隧道显微镜观察到亚稳态表面结构，介导从 O 诱导 (1ifmmode imeselse exttimesfi{}4) 到 N 诱导 (2ifmmode imeselse exttimesfi{}1) 基质重建的转换。亚稳态相的单元是[001]Rh行的短三原子段，形成c(2ifmmode imeselse exttimesfi{}6)对称性的六方超晶格。这项研究的问题是表面的初始结构各向异性对传质和结构转变基本步骤的影响，从而产生不能由任何一个反应参与者单独形成的中间体。
A metastable surface structure, which mediates the conversion from an O-induced (1ifmmode imeselse exttimesfi{}4) to N-induced (2ifmmode imeselse exttimesfi{}1) substrate reconstruction, is observed by scanning tunneling microscopy during the oxidation of ammonia on Rh(110). The units of the metastable phase are short three-atomic segments of [001] Rh rows forming a hexagonal superlattice of a c(2ifmmode imeselse exttimesfi{}6) symmetry. The issue of this study is the impact of the initial structural anisotropy of the surface on the mass transport and elementary steps of the structural transformations resulting in an intermediate that cannot be formed by either of the reaction participants alone.