Autonomous nanomotor based on copper-platinum segmented nanobattery

Ran Liu, Ayusman Sen

Research output: Contribution to journalArticlepeer-review

191 Citations (SciVal)


We describe an efficient, bubble-free nanoscale motor consisting of a copper-platinum (Cu-Pt) segmented rod that operates as a nanobattery in dilute aqueous Br 2 or I 2 solutions. The motion of the rod is powered by self-electrophoresis caused by redox reactions occurring on the two different metal segments. Asymmetric ratchet-shaped pure copper nanorods were also found to rotate and tumble in aqueous Br 2 solution because of the ion gradient arising from asymmetric dissolution of copper.

Original languageEnglish (US)
Pages (from-to)20064-20067
Number of pages4
JournalJournal of the American Chemical Society
Issue number50
StatePublished - Dec 21 2011

All Science Journal Classification (ASJC) codes

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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