Catalytic Nanomotors Model by Bubble Propulsion

• Main Authors: Chih-Hsin Chen, 陳志昕
• Other Authors: Sheng-Der Chao
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/31760658690648991249

碩士 === 國立臺灣大學 === 應用力學研究所 === 101 === In recent years, inspired by natural nanomotors, scientists have begun to study how to use the chemical reaction to provide propulsion power on the artificial nanomotors. Due to its minute and self-propelled properties. It has a lot of potential applications in many fields. The thesis presents a bubble propulsion model, which is based on catalyzed hydrogen peroxide decomposition reaction and momentum change when bubbles detach from the reaction surface to explain the micromotor propulsion mechanism. We consider the total system momentum change and solve the micromotor terminal velocity, reached terminal velocity time. It combines the bubble growth model and Langmuir equation, which make our model more consistent with experimental conditions. We have also established two numerical simulations：Jet Engines model and Bubble growth model. The simulation results verify the parameters used in the mathematical model. The mathematical model can predict the velocity of micromotor which is directly proportional to the square of bubble radius. The geometric dimensions of the micromotor, like length and radius, also influence its dynamic behavior. The model predictions are supported by the experiment data of the roll-up micromotor .