Mr. Karthikeyan research is mainly focused on exploring techniques to produce hydrogen from waste and environmentally problematic materials.

Mr. Karthikeyan's current research focus is on the hydrogen production via supercritical steam reformation of heavy hydrocarbons, photolytic decomposition of hydrogen sulfide into hydrogen and sulfur.

• Karthikeyan K. Ramasamy and Clovis A. Linkous (2004), "UV Photolytic Method for Deriving Hydrogen from Hydrogen Sulfide," World Hydrogen Energy Conference, Yokohama, Japan
• Karthikeyan K. Ramasamy (2003), "Photolytic Decomposition of Hydrogen Sulfide into Hydrogen and Sulfur," Master's dissertation, University of Central Florida, Orlando, FL
• Karthikeyan K. Ramasamy (2004) "Hydrogen Production from Used Lube Oil via Supercritical Water Reformation," NASA Year End Review Meeting, Cocoa, FL