|
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 |
|