Water nanostructure formation on oxide probed in situ by optical resonances
Water nanostructure formation on oxide probed in situ by optical resonances
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DOI：
10.1126/sciadv.aax6973
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发表时间：
2019-10
期刊：
影响因子：
13.6
通讯作者：
Yin Yin-Yin;Jiawei Wang;Xiaoxia Wang;Shilong Li;M. Jorgensen;J. Ren;S. Meng;Libo Ma;O. Schmidt
中科院分区：
文献类型：
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作者：
Yin Yin-Yin;Jiawei Wang;Xiaoxia Wang;Shilong Li;M. Jorgensen;J. Ren;S. Meng;Libo Ma;O. Schmidt
利用光学共振技术原位探测了水纳米结构在氧化物表面形成的动力学过程。用现有的技术很难实现氧化物表面水多层的动态表征。尽管如此，人们对水纳米结构在氧化物上的演变越来越感兴趣，以充分了解冰在自然和人工环境中成核和生长的复杂动力学。在这里，我们报告了用光学共振探测非晶氧化物表面纳米级水层动态演变的原位检测。在水纳米层的生长过程中，我们发现了一个初始的纳米团簇形态，在超过临界厚度的情况下变成了一个平面层。在相反的过程中，平面水膜转变为纳米团簇，伴随着从平面非晶层到晶体纳米团簇的转变。我们的结果用一个简单的热力学模型和动力学的考虑来解释。我们的工作代表了一种利用共振光探测揭示水-氧化物界面纳米结构和动力学的方法。
Dynamics of water nanostructure formation on oxide surface is probed in situ by optical resonances. The dynamic characterization of water multilayers on oxide surfaces is hard to achieve by currently available techniques. Despite this, there is an increasing interest in the evolution of water nanostructures on oxides to fully understand the complex dynamics of ice nucleation and growth in natural and artificial environments. Here, we report the in situ detection of the dynamic evolution of nanoscale water layers on an amorphous oxide surface probed by optical resonances. In the water nanolayer growth process, we find an initial nanocluster morphology that turns into a planar layer beyond a critical thickness. In the reverse process, the planar water film converts to nanoclusters, accompanied by a transition from a planar amorphous layer to crystalline nanoclusters. Our results are explained by a simple thermodynamic model as well as kinetic considerations. Our work represents an approach to reveal the nanostructure and dynamics at the water-oxide interface using resonant light probing.