Plasma-Induced Electrochemistry: Understanding the Behavior of Electrons at a Plasma-Liquid Interface
Abstract
The goal of this research program is to establish a fundamental understanding of plasma-solvated electrons and the electrochemistry they promote. This effort builds upon a prior ARO-sponsored STIR grant (W911NF-14-1-0241) where we directly measured the presence of plasma-injected solvated electrons when operating an electrolytic cell where an atmospheric-pressure plasma jet replaced the conventional metal cathode. It is also supported by a DURIP grant (W911NF-17-1-0206) that was used to by a tunable laser for improved measurements of plasma-injected solvated electrons. Pre-Objective: In order to answer the questions raised in Objectives 1 and 2, address the existing limitations of our plasma-solvated electron measurement technique (called TIRAS) and data analysis method. Refine optics and laser system (awarded DURIP grant), resolve competing pathways with reactive oxygen species, measure current density of pulsed plasma Objective 1: Determine the impact of the interfacial double layer at the plasma-liquid interface on solvation properties including how space charge and the electric field in the double layer impact the solvated electron absorption spectrum and reaction rate constants. Objective 2: Determine the limits on the penetration of plasma-solvated electrons and the subsequent limits on reactions of electrons in the solution in order to clarify localization (solvation) of plasma electrons and understand the potential for non-local electrochemistry.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 06, 2018
- Source ID
- W911NF1710119
Entities
People
- David B Go
Organizations
- Army Contracting Command
- United States Army
- University of Notre Dame