TY - JOUR
T1 - Thermally induced mass transfer between nanobubbles and micropancakes
AU - Kimura, Ryota
AU - Teshima, Hideaki
AU - Li, Qin Yi
AU - Takahashi, Koji
N1 - Funding Information:
This work was partially supported by JST CREST Grant No. JPMJCR18I1, JSPS KAKENHI Grant No. JP20H02089, JP20H02090, and a Grant-in-Aid for JSPS Research Fellow No. JP20J01307. The sponsors had no role in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the article for publication. We thank Prof. Yasuyuki Takaka, Ikuta Tatsuya, Kazuhiko Morishita, Sota Hirokawa, Riku Sakata, and Chen Kuan Ting for scientific discussions.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/12
Y1 - 2021/12
N2 - The response of nanoscopic gas phases at solid-liquid interfaces to temperature changes remains unclear. We investigated the interactions between surface nanobubbles and underlying micropancakes upon heating. By atomic force microscopy imaging of the same area before and after heating, we found that the surface nanobubbles exhibited various behaviors upon heating: nucleation, growth, and disappearance. The differences in behavior are attributable to the existence of underlying gas phases, such as micropancakes and adsorbed layers. The nucleation sites of the nanobubbles depend on the positions of the micropancakes. The size of the underlying micropancakes is central to the manner of gas transport between the micropancakes and overlying nanobubbles. We propose that the strongly adsorbed gas layers attract dissolved gas molecules and thereby lead to irreversible growth before and after heating.
AB - The response of nanoscopic gas phases at solid-liquid interfaces to temperature changes remains unclear. We investigated the interactions between surface nanobubbles and underlying micropancakes upon heating. By atomic force microscopy imaging of the same area before and after heating, we found that the surface nanobubbles exhibited various behaviors upon heating: nucleation, growth, and disappearance. The differences in behavior are attributable to the existence of underlying gas phases, such as micropancakes and adsorbed layers. The nucleation sites of the nanobubbles depend on the positions of the micropancakes. The size of the underlying micropancakes is central to the manner of gas transport between the micropancakes and overlying nanobubbles. We propose that the strongly adsorbed gas layers attract dissolved gas molecules and thereby lead to irreversible growth before and after heating.
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U2 - 10.1016/j.ijheatmasstransfer.2021.122001
DO - 10.1016/j.ijheatmasstransfer.2021.122001
M3 - Article
AN - SCOPUS:85116678709
SN - 0017-9310
VL - 181
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
M1 - 122001
ER -