Methane Oxidation over Iron Oxide Nanoparticles
Heterogeneous Catalysis with Multi-walled Carbon Nanotubes
The focus of our heterogeneous catalysis work is to utilize carbon nanotubes as a catalyst support for depositing catalytically active metal oxide nanoparticles (ZrO2, WOx, and TiO2). We are working to develop catalysts that are capable of biomass processing and more specifically, aqueous phase reforming. We employ carbon nanotubes as our catalyst support, taking advantage of their high surface area and hydrophobic nature, providing increased numbers of catalytically active sites and catalyst stability in hot liquid water. Common catalyst characterization techniques we use include, thermogravimetric analysis, X-ray absorption spectroscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and transmission electron microscopy. We also design reactors to test our prepared catalysts and characterize the reaction products with high performance liquid chromatography and in-line gas chromatographs.