121st General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code MAT.P-517
Subject Organic/Inorganic Hybrid Material Constructed by Ammonium Halide Functionalized on Mesoporous Zeolite for Production of Propylene Carbonate from Coupling of Propylene Oxide and CO2
Authors Daeho Kim, Kyungsu Na*
Department of Chemistry, Chonnam National University, Korea
Abstract CO2 is the one of the most representative greenhouse gases that can cause global warming. Ultimate solution for removing CO2 is utilization of CO2. One representative example is producing organic carbonates via cycloaddition of CO2 into epoxide. More specifically, propylene oxide (PO) can react with CO2 to produce propylene carbonate (PC) over the catalysts. The resultant PC can be used as aprotic polar solvents, electrolytes and monomer for polypropylene carbonate. Herein, an organic-inorganic hybrid catalyst was constructed by tethering an ammonium bromide onto mesoporous BEA zeolite. This approach conferred multifunctionality to the catalyst, which was exploited in the cycloaddition of CO2 to propylene oxide for production of propylene carbonate. The hybrid catalyst exhibited a synergistic enhancement of the catalytic activity in comparison with the catalysts having a single catalytic function. Through reaction studies, it was revealed that the catalytic synergy could only be obtained by achieving close proximity between the ammonium bromide and Lewis acid sites. The details of synthesis and catalytic reaction studies will be discussed in this poster.
E-mail daeho6059@gmail.com