Professor Duan’s research works are directed towards the valorization of organic solid wastes (mainly including waste tires, waste plastics, sewage sludge, algae, agriculture residues) into energy (hydrocarbon-rich liquid biofuel and gas biofuel) or high value-added materials (such as heteroatoms-doped materials for electrochemistry utilization). His expertise covers but not limited, the reaction mechanisms and kinetics, kinetic modeling, catalyst characterization, heterogeneous catalysis for processes including hydrothermal treatments, pyrolysis, gasification, hydrolysis, transesterification, ammonization, etc.…. Given his works, he is at the crossroads between environmentalists, energy specialists, chemical engineers and process engineers.