title: Pressure-driven bipolar electrochemistry.
abstract: Here we report that pressure-driven flow alone (no external electrical energy) can be used to drive faradaic electrochemical reactions in microchannels with charged walls. Specifically, we show that solution flow can generate streaming potentials on the order of volts and that this is sufficient to carry out reactions on the anodic and cathodic poles of a bipolar electrode (BPE). The existence of faradaic reactions is proven by electrodissolution of Ag from the anodic end of the BPE.
authors.affiliation: Department of Chemistry and Biochemistry, Center for Electrochemistry, Center, The University of Texas at Austin, 1 University Station, A5300, Austin, Texas 78712-0165, USA.
authors.forename: Ioana
authors.initials: I
authors.lastname: Dumitrescu
authors.forename: Robbyn K
authors.initials: RK
authors.lastname: Anand
authors.forename: Stephen E
authors.initials: SE
authors.lastname: Fosdick
authors.forename: Richard M
authors.initials: RM
authors.lastname: Crooks
mesh_terms: D004563:Electrochemistry; D004566:Electrodes; D011312:Pressure; D012834:Silver / Q000737:chemistry
chemical_list: D012834:Silver