Quartz crystal microbalance study of the interfacial nanobubbles
文献信息
Xue Hua Zhang
The applications of quartz crystal microbalance (QCM) to the study of surface and interfacial science such as adsorption have become progressively common and popular these days. In this work, QCM with dissipation monitoring was used to study the formation of nanobubbles on bare and thiol-coated gold surfaces. The nanobubbles were produced using one of the established solvent exchange protocols and the formation was first confirmed by the tapping mode atomic force microscopy (AFM). By QCM measurements, we found that the formation of nanobubbles on the hydrophobic crystal surfaces can yield easily detectable shifts of frequency and dissipation from those measured directly in water without the presence of nanobubbles. The direction of the shifts is consistent with the depletion of water by gases of lower density. We also found that the formation of nanobubbles is a fast process and can be finished in less than a minute. The response of QCM at several overtones showed that nanobubbles cannot be used to explain why the shift in the half bandwidth is sometimes smaller than the negative frequency shift at higher overtones when the QCM crystal is operated in liquids.
期刊推荐

Journal of Medicinal Chemistry

Molecular Pharmacology

Pure and Applied Chemistry

Proceedings of the National Academy of Sciences of the United States of America

Journal of Catalysis

Helvetica Chimica Acta

Fibre Chemistry

Science Progress

Journal of Heterocyclic Chemistry

Journal of Physics and Chemistry of Solids
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.




