Force Spectroscopy Revealed a High-Gas-Density State near the Graphite Substrate inside Surface Nanobubbles
文献类型：期刊论文
| 作者 | Wang, S; Zhou, LM; Wang, XY; Wang, CL; Dong, YM; Zhang, Y; Gao, YX; Zhang, LJ; Hu, J |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2019 |
| 卷号 | 35期号:7页码:2498—2505 |
| 关键词 | NANO-BUBBLES AFM TIPS WATER NANODROPLETS INTERFACE STABILITY LAYER |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/acs.langmuir.8b03383 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The absorption of gas molecules at hydrophobic surfaces may have a special state and play an important role in many processes in interfacial physics, which has been rarely considered in previous theory. In this paper, force spectroscopic experiments were performed by a nanosized AFM probe penetrated into individual surface nanobubbles and contacted with a highly ordered pyrolytic graphite (HOPG) substrate. The results showed that the adhesion force at the gas/solid interface was much smaller than that in air measured with the same AFM probe. The adhesion data were further analyzed by the van der Waals force theory, and the result implied that the gas density near the substrate inside the surface nanobubbles was about 3 orders of magnitude higher than that under the standard pressure and temperature (STP). Our MD simulation indicated that the gas layers near the substrate exhibited a high-density state inside the surface nanobubbles. This high-density state may provide new insight into the understanding of the abnormal stability and contact angle of nanobubbles on hydrophobic surfaces, and have significant impact on their applications. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31638]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 2.Shenzhen Univ, Coll Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China; 3.Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China; 5.Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 6.Shanghai Normal Univ, Shanghai 200234, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, S,Zhou, LM,Wang, XY,et al. Force Spectroscopy Revealed a High-Gas-Density State near the Graphite Substrate inside Surface Nanobubbles[J]. LANGMUIR,2019,35(7):2498—2505. |
| APA | Wang, S.,Zhou, LM.,Wang, XY.,Wang, CL.,Dong, YM.,...&Hu, J.(2019).Force Spectroscopy Revealed a High-Gas-Density State near the Graphite Substrate inside Surface Nanobubbles.LANGMUIR,35(7),2498—2505. |
| MLA | Wang, S,et al."Force Spectroscopy Revealed a High-Gas-Density State near the Graphite Substrate inside Surface Nanobubbles".LANGMUIR 35.7(2019):2498—2505. |
入库方式： OAI收割
来源：上海应用物理研究所
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