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2. Photochemically induced motion of liquid metal marbles.

Author

Tang, Xinke, Tang, Shi-Yang, Sivan, Vijay, Zhang, Wei, Mitchell, Arnan, Kalantar-zadeh, Kourosh, and Khoshmanesh, Khashayar

Subjects
LIQUID metals, PHOTOCHEMICAL rearrangement, NANOPARTICLES, PHOTOSYNTHETIC oxygen evolution, SEMICONDUCTOR nanoparticles, PHOTOCATALYSIS
Abstract

We demonstrate photochemically induced actuation of liquid metal marbles, which are liquid metal droplets encased in micro/nanoparticles. The WO3 nanoparticles coated marbles are placed in H2O2 solution, and their surfaces are illuminated with UV light. The semiconducting WO3 coating behaves as a photocatalyst to trigger a photochemical reaction, generating oxygen bubbles that propel the marble. The actuation of the marbles is investigated under different H2O2 concentrations, light intensities, and marble dimensions. Equations describing the fundamentals of such actuations are presented. [ABSTRACT FROM AUTHOR]

Published
2013
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