CSD 法による環境調和型ナノ複合粒子の合成

抄録

Monodispersed VO₂-SiO₂ nanohybrid particles were obtained by reducing V₂O₅-SiO₂ nanohybrid particles. V₂O₅-SiO₂ nanohybrid particles were prepared by coating a nanolayer of V₂O₅ onto monodispersed SiO₂ particles from modified vanadium alkoxide and monodispersed SiO₂ particles mixture sol, followed by the annealing at 350℃ for 2 h in air. As a result, monodispersed SiO₂ particles were effectively coated by using acetic acid anhydride as a chelating reagent, and VO₂-SiO₂ monodispersed nanohybrid particles were successfully prepared by annealing the V₂O₅-SiO₂ nanohybrid particles up to 500℃ for 2h in H₂/Ar atmosphere. EPMA analysis also exhibited the uniform vanadium distribution on the monodispersed SiO2 particles, showing the homogeneous coating of VO₂ nanolayer onto the monodispersed SiO₂ particles.