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Updated: May 18, 2026

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

Kinetic processes in recombining H3+ plasmas.

Rainer Johnsen¹

¹Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA. rj@pitt.edu

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences

|October 3, 2012

Summary

Recombination in hydrogen plasmas involves both binary and third-body mechanisms. Understanding these processes is crucial for modeling hydrogen discharges and analyzing plasma afterglow data accurately.

Area of Science:

Plasma Physics
Chemical Kinetics

Background:

Recombination is a key process in plasma chemistry.
Hydrogen plasmas contain trihydrogen cations (H3+).
Binary recombination is well-studied, but third-body effects are less understood.

Purpose of the Study:

Investigate third-body assisted recombination mechanisms in H3+ plasmas.
Analyze the impact of third-body effects on plasma modeling.
Improve the inference of binary recombination coefficients from afterglow data.

Main Methods:

Theoretical modeling of recombination processes.
Analysis of plasma discharge and afterglow data.
Focus on third-body assisted recombination pathways.

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Main Results:

Third-body mechanisms significantly influence recombination rates in H3+ plasmas.
These effects are critical for accurate hydrogen discharge simulations.
Quantified the contribution of third-body assisted recombination.

Conclusions:

Third-body effects are essential for understanding recombination in H3+ plasmas.
Accurate modeling of hydrogen discharges requires incorporating these mechanisms.
Improved methods for deriving binary recombination coefficients from experimental data.