CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Nanoscale Hydrophilicity on Metal Surfaces at Room Temperature: Coupling Lattice Constants and Crystal Faces
Xu, Z; Gao, Y; Wang, CL; Fang, HP; Wang, CL (reprint author), Chinese Acad Sci, Div Interfacial Water, POB 800-204, Shanghai 201800, Peoples R China.
2015
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume119Issue:35Pages:20409—20415
Subtype期刊文献
AbstractIt is generally accepted that the metal water interface tensions are quite high; thus, the metal surfaces are usually regarded as hydrophilic. Using the molecular dynamics simulations, we have investigated the microscopic wetting behaviors of a series of metal surfaces at room temperature, including Ni, Cu, Pd, Pt, Al, Au, Ag, and Pb with three crystal faces of (100), (110), and (111). We have found that the wetting of the metals is greatly dependent on both the lattice constants and crystal surfaces. Particularly, stable water droplets are found forming on the first ordered water layer, serving as an evidence of room temperature "ordered water monolayer that does not completely wet water" on Pd(100), Pt(100), and Al(100) surfaces, while water films without ordered water monolayer are found on (110) and (111) faces of all metal surfaces and even (100) face of other metal surfaces (Ni, Cu, Au, Ag, and Pb). The formation of water droplets is attributed to the rhombic ordered water layers on the surfaces, reducing the number of hydrogen bond formation between the monolayers and other water molecules atop the water monolayer. These results demonstrate a tight correlation among the lattice constant, the crystal faces, and the surface wetting behaviors. Our findings of the novel wetting behavior may have potential applications in the surface friction reduction at the metal surfaces, design of the anti-ice materials, and the nonfouling materials.
KeywordDewetting Transition Hydrophobic Particles Melittin Tetramer Ordered Water Interfaces Collapse Ethanol Wettability Potentials Simulation
Language英语
WOS IDWOS:000360947800021
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25000
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorWang, CL (reprint author), Chinese Acad Sci, Div Interfacial Water, POB 800-204, Shanghai 201800, Peoples R China.
Recommended Citation
GB/T 7714
Xu, Z,Gao, Y,Wang, CL,et al. Nanoscale Hydrophilicity on Metal Surfaces at Room Temperature: Coupling Lattice Constants and Crystal Faces[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(35):20409—20415.
APA Xu, Z,Gao, Y,Wang, CL,Fang, HP,&Wang, CL .(2015).Nanoscale Hydrophilicity on Metal Surfaces at Room Temperature: Coupling Lattice Constants and Crystal Faces.JOURNAL OF PHYSICAL CHEMISTRY C,119(35),20409—20415.
MLA Xu, Z,et al."Nanoscale Hydrophilicity on Metal Surfaces at Room Temperature: Coupling Lattice Constants and Crystal Faces".JOURNAL OF PHYSICAL CHEMISTRY C 119.35(2015):20409—20415.
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