We describe an efficient, bubble-free nanoscalemotor consisting of a copper-platinum (CuPt)segmented rod that operates as a nanobattery in diluteaqueous Br2 or I2 solutions. The motion of the rod ispowered by self-electrophoresis caused by redox reactionsoccurring on the two different metal segments .Asymmetric ratchet-shaped pure copper nanorods werealso found to rotate and tumble in aqueous Br2 solutionbecause of the ion gradient arising from asymmetricdissolution of copper. 

Autonomous nanomotor based on copper-platinum segmented nanobattery

243rd National Meeting (2012)

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