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Oscillating state transition in pinned nanobubbles with coupled fluctuations

文献类型：期刊论文

作者Guo, Zhenjiang2,3; Zhang, Hongguang2; Zhang, Xianren2; Doi, Masao1
刊名PHYSICAL REVIEW E
出版日期2021-12-27
卷号104期号:6页码:7
ISSN号2470-0045
DOI10.1103/PhysRevE.104.064802
通讯作者Zhang, Xianren(zhangxr@mail.buct.edu.cn) ; Doi, Masao(masao.doi@buaa.edu.cn)
英文摘要Analogous to other porous solids, pinned nanobubbles serve as a zero-dimensional stable nanoscale chamber with controllable thermodynamic parameters, whereas they can respond to state change of guest molecule. Here we analyzed peculiarities of phase transitions in pinned nanobubbles, which were experimentally proved to be superstable. By combining molecular dynamics simulation and thermodynamic analysis, we reveal that guest molecules encapsulated inside a nanobubble exhibit distinct state behaviors: a state in vapor phase, a reversible two-state oscillation, and a stable nanodroplet@nanobubble state, depending on the number of guest molecules and the external pressure. The free-energy landscape shows how state metastability gradually develops with external stimuli and leads to the specific bistable state of two-state oscillation. The existence of strong coupling between nanobubble breathing and two-state oscillation is identified. Our simulation results demonstrate that the flexibility of pinned nanobubbles plays at least the same important role as space confinement in determining the states of guest molecules. Our findings indicate that pinned nanobubbles, serving as soft porous media that possess high stability and reversible transformability, show a wealth of properties that are not found in bulk solutions and in porous solids.
资助项目Natural Science Foun-dation of China[21978007]
WOS研究方向Physics
语种英语
WOS记录号WOS:000737308300011
出版者AMER PHYSICAL SOC
资助机构Natural Science Foun-dation of China
源URL[http://ir.ia.ac.cn/handle/173211/47112]  
专题国家专用集成电路设计工程技术研究中心_先进微处理器
通讯作者Zhang, Xianren; Doi, Masao
作者单位1.Beihang Univ, Ctr Soft Matter Phys & Its Applicat, Beijing 100191, Peoples R China
2.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Zhenjiang,Zhang, Hongguang,Zhang, Xianren,et al. Oscillating state transition in pinned nanobubbles with coupled fluctuations[J]. PHYSICAL REVIEW E,2021,104(6):7.
APA Guo, Zhenjiang,Zhang, Hongguang,Zhang, Xianren,&Doi, Masao.(2021).Oscillating state transition in pinned nanobubbles with coupled fluctuations.PHYSICAL REVIEW E,104(6),7.
MLA Guo, Zhenjiang,et al."Oscillating state transition in pinned nanobubbles with coupled fluctuations".PHYSICAL REVIEW E 104.6(2021):7.

入库方式： OAI收割

来源：自动化研究所

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