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Wei Gao, Mattia D'Agostino, Victor Garcia-Gradilla, Jahir Orozco and Joseph Wang Multi-Fuel Driven Janus Micromotors Small 9

Article first published online: 11 OCT 2012 | DOI: 10.1002/smll.201201864

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The multi-fuel operation of a hybrid micromotor is illustrated using Al/Pd Janus microspheres. These Al/Pd Janus microspheres are propelled efficiently in alkaline, acid, and hydrogen peroxide fuel environments by thrusts of hydrogen or oxygen bubbles generated at their Al and Pd hemispheres. High speeds and long lifetimes are demonstrated in these different media along with an adaptive fuel-switching operation. The new micromotor holds considerable promise for diverse applications in different chemical environments.

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