Visualization of electrolytic reactions at a plasma-liquid interface

Paul Rumbach, Nathaniel Griggs, R. Mohan Sankaran, David B. Go

Research output: Contribution to journalArticlepeer-review


A dc microplasma jet in flowing argon (Ar) gas is used to electrolyze aqueous sodium chloride (NaCl) solutions. Electrolytic reactions at the plasma-liquid interface make the solution more basic and result in H2 gas evolution. The pH change is visualized using a pH sensitive dye, which becomes dark green under basic conditions. The basic solution created at the plasma-liquid interface is subsequently transported to the bottom of the reactor vessel by an apparent electrohydrodynamic flow.

Original languageEnglish (US)
Article number6823181
Pages (from-to)2610-2611
Number of pages2
JournalIEEE Transactions on Plasma Science
Issue number10
StatePublished - Oct 1 2014
Externally publishedYes


  • Atmospheric-pressure plasmas
  • pH measurements
  • plasma chemistry
  • plasma materials processing.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics


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

Cite this