Zigzag gas phases on holey adsorbed layers |
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Authors: | Hideaki Teshima Naoto Nakamura Qin-Yi Li Yasuyuki Takata Koji Takahashi |
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Affiliation: | Department of Aeronautics and Astronautics, Kyushu University, Nishi-Ku, Motooka 744, Fukuoka 819-0395 Japan.; Department of Mechanical Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871 Japan ; International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Nishi-Ku, Motooka 744, Fukuoka 819-0395 Japan ; Department of Mechanical Engineering, Kyushu University, Nishi-Ku, Motooka 744, Fukuoka 819-0395 Japan |
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Abstract: | We report for the first time a zigzag-shaped gas phase at a highly-ordered pyrolytic graphite/water interface. The novel shape of the gaseous domain is triggered by the holes of the underlying solid-like layers, which are composed of air molecules. Specifically, many holes were created by heating in the thin solid-like layers, which roughened them. The gas domains that formed on these layers deformed from circular to zigzag-shaped as the contact lines expanded while avoiding the holes of the underlying layers. We explained the formation and growth processes of these gas structures in terms of thin film growth, which varies with the mobility of the constituent molecules.Heating induces the formation of novel zigzag gas phases on the holey adsorbed air layers. |
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