title: Autonomous nanomotor based on copper-platinum segmented nanobattery.
abstract: 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.
authors.affiliation: Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
authors.forename: Ran
authors.initials: R
authors.lastname: Liu
authors.forename: Ayusman
authors.initials: A
authors.lastname: Sen