Formation of Linear Water Chains on Ni(110).,The Journal of Physical Chemistry Letters

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Formation of Linear Water Chains on Ni(110).
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-03-04 , DOI: 10.1021/acs.jpclett.0c00407
Nikki Gerrard ₁ , Kallum Mistry ₁ , George R Darling ₁ , Andrew Hodgson ₁

Affiliation

Materials that bind strongly to water structure the contact layer, modifying its chemical and physical properties in a manner that depends on the symmetry and reactivity of the surface. Although detailed models have been developed for several inert surfaces, much less is known about reactive surfaces, particularly those with a symmetry different from that of ice. Here we investigate water adsorption on a rectangular surface, Ni(110), an active re-forming catalyst that interacts strongly with water. Instead of forming a network of H-bonded cyclic rings, water forms flat 1D water chains, leaving half the Ni atoms exposed. Second layer water also follows the surface symmetry, forming chains of alternating pentamer and heptamer rings in preference to an extended 2D structure. This behavior is different from that found on other surfaces studied previously and is driven by the short lattice spacing of the solid and the strength of the Ni-water bond.

中文翻译：

在Ni（110）上形成线性水链。

与水牢固结合的材料构成接触层，从而以取决于表面的对称性和反应性的方式改变其化学和物理性质。尽管已经为几个惰性表面开发了详细的模型，但是对于反应性表面，尤其是那些对称性与冰不同的表面，人们所知甚少。在这里，我们研究水在矩形表面Ni（110）上的吸附，Ni（110）是一种与水强烈相互作用的活性重整催化剂。水不是形成氢键合的环状环网络，而是形成平坦的一维水链，使一半的镍原子暴露出来。第二层水也遵循表面对称性，优先于扩展的2D结构，形成交替的五聚体和七聚体环的链。

更新日期：2020-03-04

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