119th General Meeting of the KCS

Type Symposium
Area Recent Trends in Solid State Chemistry
Room No. 401호
Time FRI 14:30-:
Code INOR2-1
Subject Structure-Property Correlation of Metal Hydroxides and Their Composites
Authors 정덕영
성균관대학교 화학과, Korea
Abstract The charged layers of metal hydroxides provided the multifunctional interface characteristics required to assemble the functional particles, resulting in the binary hybrid structures of inorganic-inorganic, polymer-inorganic or bio-inorganic composites. The mixing of colloidal solutions of metal hydroxides and polymer led to the formation of bulk-type polymer-inorganic composites after the melting of the polymer phase, where the polymer was homogeneously coated over the hydroxide without the phase segregation. A biomimetic multifunctional nanocomposite was synthesized, in which polymer thin film was deposited on metal hydroxide. Kinetic controlled polymerization provided a synthetic pathway for the nanostructured polymer-inorganic composites without polymer agglomerates, allowing the crystallinity of the pristine metal hydroxide nanoparticles to be maintained. The catalytic activity of polymer containing and platinum nanoparticle-metal hydroxide composites was evaluated by observing the reduction of p-nitrophenol, in which the polymer layer acts as a protection layer against surface contamination of the nanocomposites. The nanostructure of polymer-hydroxide composites drove the incorporative organic-inorganic functional materials with blocked surface and improved electrochemical properties, providing a reliable synthetic pathway to prepare multifunctional nanohybrid materials. This new nanostructure improved the rate of reaction, turnover frequency and reaction durability of catalysts without significant loss in conversion efficiencies.
E-mail dyjung@skku.edu