期刊
JOURNAL OF SYNCHROTRON RADIATION
卷 20, 期 -, 页码 413-418出版社
WILEY-BLACKWELL
DOI: 10.1107/S0909049513003671
关键词
interfacial science; nanobubbles; scanning transmission soft X-ray microscopy
资金
- National Science Foundation of China [11079050]
- Knowledge Innovation Program of the Chinese Academy of Sciences [KJCX2-EW-W09]
Synchrotron-based scanning transmission soft X-ray microscopy (STXM) with nanometer resolution was used to investigate the existence and behavior of interfacial gas nanobubbles confined between two silicon nitride windows. The observed nanobubbles of SF6 and Ne with diameters smaller than 2.5 mu m were quite stable. However, larger bubbles became unstable and grew during the soft X-ray imaging, indicating that stable nanobubbles may have a length scale, which is consistent with a previous report using atomic force microscopy [Zhang et al. (2010), Soft Matter, 6, 4515-4519]. Here, it is shown that STXM is a promising technique for studying the aggregation of gases near the solid/water interfaces at the nanometer scale.
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