Main Research Interests:1) Heterogeneous Olefin Polymerization CatalysisStudies on active sites formation and polymerization mechanisms of industrial olefin polymerization catalysts including Phillips Cr-based catalysts, highly-selective olefin oligomerization (trimerization or tetramerization) catalysts, Ziegler-Natta Ti-based catalysts and other important catalysts with high performance for commercial production of polyolefins (polyethylene, polypropylene and copolymers) with new structures and properties2) Computational Molecular Modeling of Catalysts and PolymersStudies on mechanisms of various catalytic chemical reactions (such as olefin polymerization, oligomerization and metathesis, etc.) based on density functional theory (DFT), molecular orbital (MO), molecular dynamics (MD) calculation methods in combination with experimental investigations for the molecular design of novel catalysts and polymers with new properties, MD simulation study on the crystallization of polyolefins3) Novel Polyolefins and Polyolefin-Based NanocompositesStudies on development of novel polyolefin materials with controlled chain microstructures (molecular weight and molecular weight distribution, short and long chain branches and their distribution, regioregularity and stereoregularity), mesoscale and macroscale structures based on catalyst design and organic-inorganic nanocomposites formulation