文献类型：期刊文献

中文题名：Stable water droplets on composite structures formed by embedded water into fully hydroxylated β-cristobalite silica

作者：Hanqi Gong[1,2];Chonghai Qi[1,3];Junwei Yang[4];Jige Chen[1,5];Xiaoling Lei[6];Liang Zhao[7];Chunlei Wang[1,5]

机构：[1]Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology,Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;[2]University of Chinese Academy of Sciences,Beijing 100049,China;[3]School of Physics,Shandong University,Jinan 250100,China;[4]School of Arts and Sciences,Shanghai Dianji University,Shanghai 201306,China;[5]Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China;[6]Department of Physics,East China University of Science and Technology,Shanghai 200237,China;[7]College of Physical Science and Technology,Yangzhou University,Jiangsu 225009,China

年份：2021

卷号：30

期号：1

起止页码：191

中文期刊名：Chinese Physics B

外文期刊名：中国物理B（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；

基金：Project supported by the National Natural Science Foundation of China (Grant No.11674345);the Key Research Program of Chinese Academy of Sciences(Grant No. QYZDJ-SSW-SLH019);the Fundamental Research Funds for the Central Universities,China。

语种：英文

中文关键词：lattice strain;surface wettability;embedded water;hydrogen bonds

摘要：Using molecular dynamics simulations, we have revealed a novel wetting phenomenon with a droplet on composite structures formed by embedded water into(111) surface of β-cristobalite hydroxylated silica. This can be attributed to the formation of a composite structure composed of embedded water molecules and the surface hydroxyl(–OH) groups,which reduces the number of hydrogen bonds between the composite structure and the water droplet above the composite structure. Interestingly, a small uniform strain(±3%) applied to the crystal lattice of the hydroxylated silica surface can result in a notable change of the contact angles(> 40°) on the surface. The finding provides new insights into the correlation between the molecular-scale interfacial water structures and the macroscopic wettability of the hydroxylated silica surface.