Research Area
CCU
Our research laboratory mainly focuses on the development of catalysts for the chemical utilization of carbon dioxide (CO2). In the field of CO2 utilization, we are particularly interested in the synthesis of CO2-based polyols and polypropylene carbonate (PPC) using double metal cyanide catalysts.
CO2-based polyols are synthesized through the copolymerization of carbon dioxide with propylene oxide, resulting in polyols that can be used as sustainable alternatives to traditional petrochemical-based polyols. These polyols serve as valuable building blocks for the production of polyurethanes and contribute to the development of more environmentally friendly polymers. Polypropylene carbonate (PPC), a specific CO2-based polymer, has garnered attention due to its biodegradability and thermal stability. By utilizing double metal cyanide catalysts, we can achieve the copolymerization of propylene oxide and carbon dioxide, leading to the synthesis of PPC.
In addition to CO2-based polyols and PPC, we are also dedicated to the challenging project of developing catalysts for the direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol. DMC is a versatile chemical compound with various applications, including as a solvent, fuel additive, and raw material in the production of polycarbonates, pharmaceuticals, and other chemicals. The direct synthesis of DMC from CO2 and methanol presents a sustainable pathway for this important compound.
By focusing on the development of efficient and selective catalysts for CO2 utilization, including the synthesis of CO2-based polyols, PPC, and DMC, our research contributes to the advancement of sustainable chemistry and the utilization of carbon dioxide as a valuable resource.
Petrochemical catalysts
Petrochemical catalysts are a significant focus of our research endeavors. Specifically, we are investigating the reaction between ethylene and 1-butene using olefin metathesis, a process that facilitates the production of propylene. Propylene is an essential raw material in the petrochemical industry, widely utilized for manufacturing plastics, synthetic fibers, and various chemical products. Through the application of transition metal-based catalysts, such as molybdenum, tungsten, or ruthenium complexes, olefin metathesis enables the rearrangement of carbon-carbon double bonds in olefins, leading to the conversion of ethylene and 1-butene into propylene.
Additionally, we are actively developing a highly efficient catalyst for the hydrogenation of pyrolysis naphtha derived from waste plastics. Our objective is to replace conventional crude oil-based naphtha by converting this complex byproduct into valuable hydrocarbon products. By addressing the challenges posed by plastic waste and promoting a sustainable circular economy, we strive to contribute to eco-friendly waste management solutions while reducing dependence on fossil fuel-derived feedstocks. Our dedicated team is committed to optimizing catalyst performance, achieving high conversion rates, and advancing the cause of sustainable and environmentally conscious practices in the petrochemical industry.
Battery materials
We are also interested in the conversion of lithium hydroxide (LiOH) to lithium sulfide (Li2S) using hydrogen sulfide (H2S). This process is significant for the production of Li2S, a key raw material in lithium-sulfur (Li-S) batteries. Li-S batteries hold great promise as energy storage systems due to their high energy density and potential cost-effectiveness. Optimizing the reaction conditions for the conversion of LiOH to Li2S is essential to achieve high-purity Li2S with desired properties.
