Intriguing Phenomena at the Boundary between Metal Oxide - Organic Fine Particles and their Industrial Application

Abstract

When metal oxide fine particles are subjected to mechanical stressing with organic powders such as fluoropolymers or amino acids, oxidative decomposition of organics is catalyzed by the coexisting metallic species, and partial anion exchange in the oxides takes place simultaneously. The phenomena serve as new technology of producing various functional particles with many applications, by utilizing their absorption ability of various photon energies and rational preparation of core-shell particles. Case studies, including nanoparticles of Nb2O5 for smart synthesis of complex oxides for electroceramics, and TiO2 for antibacterial photocatalysis are given, after surveying general needs for fine particle surface modification for the purpose of functionalization.