文献详情
Real-space visualization of intercalated water phases at the hydrophobic graphene interface with atomic force microscopy
文献类型：期刊
通讯作者：Cheng, ZH (reprint author), Renmin Univ China, Dept Phys, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China.
期刊名称：FRONTIERS OF PHYSICS影响因子和分区
年：2020
卷：15
期：2
ISSN：2095-0462
关键词：2D material; interfacial intercalation; coexistence of liquid water phases; multifrequency-AFM; hydrophobic graphene interface
所属部门：物理学系
摘要：The phase behavior of water is a topic of perpetual interest due to its remarkable anomalous properties and importance to biology, material science, geoscience, nanoscience, etc. It is predicted confined water at interface can exist in large amounts of crystalline or amorphous states. However, the experimental evidence of coexistence of liquid water phases at interface is still insufficient. Here, a special folding few-layers graphene film was elaborate prepared to form a hydrophobic/hydrophobic ...More
The phase behavior of water is a topic of perpetual interest due to its remarkable anomalous properties and importance to biology, material science, geoscience, nanoscience, etc. It is predicted confined water at interface can exist in large amounts of crystalline or amorphous states. However, the experimental evidence of coexistence of liquid water phases at interface is still insufficient. Here, a special folding few-layers graphene film was elaborate prepared to form a hydrophobic/hydrophobic interface, which can provide a suited platform to study the structure and properties of confined liquid water. The real-space visualization of intercalated water layers phases at the folding interface is obtained using advanced atomic force microscopy (AFM). The folding graphene interface displays complicated internal interfacial characteristics. The intercalated water molecules present themselves as two phases, low-density liquid (LDL, solid-like) and high-density liquid (HDL, liquid-like), according to their specific mechanical properties taken in two multifrequency-AFM (MF-AFM) modes. Furthermore, the water molecules structural evolution is demonstrated in a series of continuous MF-AFM measurements. The work preliminary confirms the existence of two liquid phases of water in real space and will inspire further experimental work to deeply understanding their liquid dynamics behavior. ...Hide

DOI：10.1007/s11467-019-0933-0
百度学术：Real-space visualization of intercalated water phases at the hydrophobic graphene interface with atomic force microscopy
语言：外文
人气指数：1
浏览次数：1
基金：Ministry of Science and Technology (MOST) of ChinaMinistry of Science and Technology, China [2016YFA0200700]; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China [21622304, 61674045, 11604063]; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) [XDB30000000, QYZDB-SSW-SYS031, YZ201418]; Key Research Program of Frontier Sciences of Chinese Academy of Sciences (CAS) [XDB30000000, QYZDB-SSW-SYS031, YZ201418]; Instrument Developing Project of Chinese Academy of Sciences (CAS) [XDB30000000, QYZDB-SSW-SYS031, YZ201418]; Distinguished Technical Talents Project CAS; Youth Innovation Promotion Association CAS; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities; Research Funds of Renmin University of China [18XNLG01]
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