作者: Markus Lade , Holger Mays , Jörg Schmidt , Regine Willumeit , Reinhard Schomäcker
DOI: 10.1016/S0927-7757(99)00425-2
关键词: Nucleation 、 Nanoparticle 、 Particle number 、 Chemical engineering 、 Particle 、 Precipitation (chemistry) 、 Organic chemistry 、 Phase (matter) 、 Microemulsion 、 Diffusion 、 Chemistry
摘要: Abstract In this study we present well-characterized non-ionic (w/o)-microemulsions as suitable reaction media for the synthesis of nanoparticles. For oil-rich three component systems water, cyclohexane and Marlipal surfactants, determined phase behavior, viscosity, droplet size interdroplet exchange rates. The general influence particular microemulsion properties on mechanism nanoparticle formation is discussed basis LaMer model particle formation. As nucleation, growth aggregation are controlled by process, all these steps retarded in comparison to a homogeneous solution. This retardation causes that not accompanied nuclei. Therefore, higher number nuclei maintained during precipitation grows smaller particles than have been expected assume reactions, where step diffusion reduces particles, application medium yields much obtained from solutions.