title: Electron-transfer reactions at the plasma-liquid interface.
abstract: Electrochemical reactions are normally initiated in solution by metal electrodes such as Pt, which are expensive and limited in supply. In this Communication, we demonstrate that an atmospheric-pressure microplasma can act as a gaseous, metal-free electrode to mediate electron-transfer reactions in aqueous solutions. Ferricyanide is reduced to ferrocyanide by plasma electrons, and the reduction rate is found to depend on discharge current. The ability to initiate and control electrochemical reactions at the plasma-liquid interface opens a new direction for electrochemistry based on interactions between gas-phase electrons and ionic solutions.
authors: Department of Chemical Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7217, United States.
authors: Carolyn
authors: C
authors: Richmonds
authors: Megan
authors: M
authors: Witzke
authors: Brandon
authors: B
authors: Bartling
authors: Seung Whan
authors: SW
authors: Lee
authors: Jesse
authors: J
authors: Wainright
authors: Chung-Chiun
authors: CC
authors: Liu
authors: R Mohan
authors: RM
authors: Sankaran