This course will provide a comprehensive overview of heterogeneous catalytic science and technology for energy conversion applications, including gas conversion, oil refining and clean energy production. Course modules will cover the preparation and mechanistic characterization of heterogeneous catalyst systems, kinetics of catalyzed reactions, adsorption and surface reactions. An introduction to heterogeneous catalysis in various energy-related applications, such as syngas production, methanol synthesis, gas to liquid technology, oil refining, CO2 conversion and utilization, hydrogen production, biogas production, etc. will be discussed. Emphasis will be placed on understanding the design and properties of hierarchical nanostructures that are applied in advanced energy conversion engineering. This course will also provide the engineering students with necessary background for understanding various nanomaterials preparation and characterization techniques, including adsorption/desorption isotherms, X-ray diffraction, electron microscopy, etc.