Electron-transfer reactions at the plasma-liquid interface

Carolyn Richmonds, Megan Witzke, Brandon Bartling, Seung Whan Lee, Jesse Wainright, Chung Chiun Liu, R. Mohan Sankaran

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Pages (from-to)17582-17585
Number of pages4
JournalJournal of the American Chemical Society
Volume133
Issue number44
DOIs
StatePublished - Nov 9 2011
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Fingerprint Dive into the research topics of 'Electron-transfer reactions at the plasma-liquid interface'. Together they form a unique fingerprint.

Cite this