Okitsu Kenji, Suzuki Takeru, Takenaka Norimichi, Bandow Hiroshi, Nishimura Rokuro, Maeda Yasuaki
J Phys Chem B. 2006 Oct 19;110(41):20081-4. doi: 10.1021/jp064598u.
Acoustic cavitation generates transient microbubbles with extremely high temperatures and high pressures, which can provide unique reaction routes. The maximum bubble temperature attained is widely known to be dependent on the polytropic index and thermal conductivity of the dissolved gas. Here, we show for the first time experimental evidence that the bubble temperature induced by a high frequency ultrasound is almost the same among different rare gases and the chemical efficiency is in proportion to the gas solubility of rare gases, which would be closely related to the number of active bubbles.
声空化会产生具有极高温度和高压的瞬态微气泡，这可以提供独特的反应途径。众所周知，达到的最大气泡温度取决于溶解气体的多方指数和热导率。在此，我们首次展示了实验证据，即高频超声诱导的气泡温度在不同稀有气体之间几乎相同，并且化学效率与稀有气体的气体溶解度成正比，这与活性气泡的数量密切相关。
