IDEA #62I43E Hybrid Nanocomposites

Hybrid Nanocomposites Hybrid Nanocomposites for Lithium Battery Cathodes Developed ternary hybrid nanocomposites have a guest(cid:1)host structure and include: • inorganic nanoparticles i.e. layered vanadium oxide particles of around 10nm in size; • electron(cid:1)conducting polymer (polyaniline, polypyrrole), the macromolecules of which are mainly located inside the inorganic nanoparticles; • ion(cid:1)conducting polymer (poly(ethylene oxide)), whose chains are located both Hybrid nanocomposites inside and outside of the inorganic nanoparticles. The simultaneous presence of both electron(cid:1)conducting and ion(cid:1)conducting polymers inside the inorganic nanoparticles, in the form of a layer (0.5–0.6 nm thick), is a distinc(cid:1) tive feature in comparison with known hybrids and provides for improved efficiency of charge(cid:1)discharge cycling. Can be used as an active component of the cathode in lithium batteries. Targeted dis(cid:1) charge capacity is 200(cid:1)250 mA*h/g which considerably exceeds the characteristics of presently used cathode materials. Hybrid Nanocomposites for Light(cid:1)Emitting Diodes Hybrid nanocomposites based on organic semiconductors and inorganic matrices that are applicable in light(cid:1)emitting diodes and displays. Semiconducting conjugated polymer (MEH(cid:1)PPV) and inorganic mesoporous silica (MCM(cid:1)41) were used as the basis for the developed nanocomposite. The content of the organic component in the developed nanocomposite is 15wt% which well exceeds known international prototypes. Organic macromolecules are confined inside the chan(cid:1) nels of the mesoporous inorganic matrix that results in improved efficiency of electrolu(cid:1) minescence and environmental stability. Dr. Oleg Y. Posudievsky, Institute of Physical Chemistry, Kyiv 14 NANOMATERIALS: ORGANIC
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