期刊
NANOSCALE
卷 5, 期 4, 页码 1337-1344出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nr33711h
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资金
- Natural Sciences and Engineering Research Council of Canada
- Canada Foundation for Innovation under Compute Canada
- Government of Ontario
- Ontario Research Fund Research Excellence
- University of Toronto
The fabrication of synthetic self-propelled particles and the experimental investigations of their dynamics have stimulated interest in self-generated phoretic effects that propel nano-and micron-scale objects. Theoretical modeling of these phenomena is often based on a continuum description of the solvent for different phoretic propulsion mechanisms, including, self-electrophoresis, self-diffusiophoresis and self-thermophoresis. The work in this paper considers various types of catalytic chemical reaction at the motor surface and in the bulk fluid that come into play in mesoscopic descriptions of the dynamics. The formulation is illustrated by developing the mesoscopic reaction dynamics for exothermic and dissociation reactions that are used to power motor motion. The results of simulations of the self-propelled dynamics of composite Janus particles by these mechanisms are presented.
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