Combustion at The University of Oklahoma

Overview

Research in the CPNEL encompasses multidisciplinary research topics. Including Combustion, Plasma, Biodiesels, Nanotechnology, Hydrophobic/Hydrophilic Surfaces, Flame Synthesis of Organic and Inorganic Nanomaterials (NMs). At present, oxy-flames are the major industrial source of pyrolytic (black) carbon, producing hundreds of millions of tons each year. In recent years, flames have also been found useful for the synthesis of nanosize powders including metal and ceramic (composed of spherical particles and their aggregates). However, in OUR lab we are working at using flames for the generation of 1D and 3D nanostructures.

Flame Synthesis of Inorganic Nanostructures.

This area of research focuses on a technique to convert inexpensive commercial high purity bulk metals into novel 1-D and 3-D TMO nanostructures through the application of a flame medium. The combustion of Transition Metal Oxide (TMO) nanostructures, mixed (MTMOs), hybrid nanomaterials (Carbon/TMOs) the nano- and micro-scale are being developed in our lab. The formed TMO structures with modified chemical compositions and morphologies possess unique electronic and mechanical properties and have generated great interest for industrial and medical applications.

Gas Phase

Solid Support

Studies of Carbon Particulates formed in the Combustion of Biodiesels

Soot nanostructures formed in open air-flames of canola methyl ester, soybean methyl ester, mixture of soybean methyl ester-animal fats biofuels and diesel fuel are studied using the thermophoretic sampling technique and HR-TEM imaging. Reconstructed evolution of soot particles along the flame centerline in the axial direction shows the existence of two characteristic distinct soot morphologies.

Soot Particles Collected from a CME-air Flame

Atomic Resolution Images of the Soot Particles

Flame Synthesis of Hydrophobic Surfaces.

3 in. diameter Al foil coated with a layer of carbon particulates from a CME/air smoky flame.

On Stainless Steel Plate. Angle: 153.16 °

Combustion at The University of Oklahoma

Combustion,Plasma, and Nanoparticle Labratory (CPNL)

Overview

Flame Synthesis of Inorganic Nanostructures.

Studies of Carbon Particulates formed in the Combustion of Biodiesels

Flame Synthesis of Hydrophobic Surfaces.

Flame Synthesis of Organic Nanostructures

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