Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3122346
Keywords
bubbles; catalysts; dissociation; hydrogen compounds; nanotechnology; surface tension
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Funding
- National Science Foundation [CMMI-0726770]
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A bubble propulsion model based on catalyzed hydrogen peroxide decomposition and momentum change via O(2) bubbles detaching from the catalytic surface is proposed to explain the autonomous motion of catalytic nanomotors. The propelling force closely depends upon the surface tension of the liquid as well as the bulk concentration of hydrogen peroxide, and the model predictions are supported by the experimental data of Pt-coated spherical silica microbead motors.
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