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Analysis of the gas states at a liquid/solid interface based on interactions at the microscopic level
Li, ZX(李朝霞); Zhang, XH; Zhang, LJ(张丽娟); Zeng, XC; Hu, J(胡钧); Fang, H(方海平); Hu, J (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800 204, Shanghai 201800, Peoples R China
2007
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume111Issue:31Pages:9325
AbstractThe states of gas accumulated at the liquid/solid interface are analyzed on the basis of the continuum theory, in which the Hamaker constant is used to describe the long-range interaction at the microscopic scale. The Hamaker constant is always negative, whereas the "gas" spreading coefficient can be either negative or positive. Despite the complexity of gas, including that the density profile may not be uniform due to absorption on both solid and liquid surfaces, we predict three possible gas states at the liquid/solid interface, that is, complete "wetting", partial "wetting", and pseudopartial "wetting". These possible gas states correspond, respectively, to a gas pancake (or film) surrounded by a wet solid, a gas bubble with a finite contact angle, and a gas bubble(s) coexisting with a gas pancake. The typical thickness of the gas pancakes is at the nano scale within the force range of the long-range interaction, whereas the radius of the gas bubbles can be large. The state of a gas bubble(s) coexisting with a gas film is predicted theoretically for the first time. Our theoretical results can contribute to the development of a unified picture of gas nucleation at the liquid/solid interface.
Subject AreaPhysics
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000248480100021
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/7650
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorHu, J (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800 204, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Li, ZX,Zhang, XH,Zhang, LJ,et al. Analysis of the gas states at a liquid/solid interface based on interactions at the microscopic level[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2007,111(31):9325.
APA Li, ZX.,Zhang, XH.,Zhang, LJ.,Zeng, XC.,Hu, J.,...&Hu, J .(2007).Analysis of the gas states at a liquid/solid interface based on interactions at the microscopic level.JOURNAL OF PHYSICAL CHEMISTRY B,111(31),9325.
MLA Li, ZX,et al."Analysis of the gas states at a liquid/solid interface based on interactions at the microscopic level".JOURNAL OF PHYSICAL CHEMISTRY B 111.31(2007):9325.
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