Synthesis of nanoparticles in carbon arc: measurements and modeling

Abstract

This work studies the region of nanoparticle growth in atmospheric pressure carbon arc. Detection of the nanoparticles is realized via the planar laser induced incandescence (PLII) approach. Measurements revealed large clouds of nanoparticles in the arc periphery, bordering the region with high density of diatomic carbon molecules. Two-dimensional computational fluid dynamic simulations of the arc combined with thermodynamic modeling explain these results due to interplay of the condensation of carbon molecular species and the convection flow pattern. The results have shown that the nanoparticles are formed in the colder, outside regions of the arc and described the parameters necessary for coagulation.

References in corpus (5)

• Investigation of a short argon arc with hot anode. Part I: numerical simulations of non-equilibrium effects in the near-electrode regions
• Complex structure of the carbon arc discharge for synthesis of nanotubes
• Investigation of the Short Argon Arc with Hot Anode, Part II: Analytical Model
• Quantitative imaging of carbon dimer precursor for nanomaterial synthesis in the carbon arc
• Carbon nanoparticles in the acoustic field in the vicinity of the arc discharge

Cited by in corpus (8)

• Nanoparticles growth in dynamic plasma
• Validated two-dimensional modeling of short carbon arcs: anode and cathode spots
• Characterization of plasma and gas-phase chemistry during boron-nitride nanomaterial synthesis by laser-ablation of boron-rich targets
• Determining Gas Composition for Growth of BNNTs Using Thermodynamic Approach
• Convenient analytical formula for cluster mean diameter and diameter dispersion after nucleation burst
• Determination of positive anode sheath in anodic carbon arc for synthesis of nanomaterials
• Numerical Method for Modeling Nucleation and Growth of Particles that Prevents Numerical Diffusion
• Model of a transition from low to high ablation regime in a carbon arc