Carbon nanoparticles in the acoustic field in the vicinity of the arc discharge

TL;DR

This paper investigates how ultrasound affects soot nanoparticle suspensions near arc discharges, leading to particle coagulation and improved nanoparticle production, with analysis of particle charge effects on coagulation.

Contribution

It presents experimental insights into ultrasound-induced coagulation of soot particles and analyzes the role of particle charge in this process.

Findings

Ultrasound causes coagulation of soot particles in inert gases.

Particle charge influences coagulation efficiency.

Ultrasound improves nanoparticle production in arc discharge environments.

Abstract

The paper considers an effect of intensive ultrasound on the suspension of soot microparticles and nanoparticles in the inert gas, resulting in the coagulation of relatively large soot particles and leading to the improvement of the efficiency of production of nanoparticles, as has been observed in experiments. The effect of the particles charge on the possibility of coagulation is analyzed.