Published in

American Institute of Physics, The Journal of Chemical Physics, 3(139), p. 034705

DOI: 10.1063/1.4813791

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Catalytic micromotor generating self-propelled regular motion through random fluctuation

This paper is available in a repository.
This paper is available in a repository.

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Abstract

Most of the current studies on nano/microscale motors to generate regular motion have adapted the strategy to fabricate a composite with different materials. In this paper, we report that a simple object solely made of platinum generates regular motion driven by a catalytic chemical reaction with hydrogen peroxide. Depending on the morphological symmetry of the catalytic particles, a rich variety of random and regular motions are observed. The experimental trend is well reproduced by a simple theoretical model by taking into account of the anisotropic viscous effect on the self-propelled active Brownian fluctuation.