Formation of nanoparticles in water-in-oil microemulsions controlled by the yield of hydrated electron: The controlled reduction of Cu2+

Formation of solid and hollow cuprous oxide nanocubes in water-in-oil microemulsions controlled by the yield of hydrated electrons

“…According to this fact, it is believed that Triton X-100 can scavenge excess electrons in the oil phase (e − oil ). This has been verified in our previous work [27]. To further explore the effect of the phenyl ring in this work, 1.86 mol L −1 toluene was added to the Brij 56-based microemulsion, while the total volume was not changed.…”

“…Then, Cu 2 O is generated through the hydrolysis of Cu + : of Cu + are two important competing reactions, which can be suppressed by reducing the yield of e − aq [27]. During the irradiation of microemulsions, e − aq can be generated mainly from the scavenging of excess electrons, which are produced originally through the radiolysis of oil, by the water pool [27,[31][32][33][34].…”

“…However, they are limited to hollow spheres. In our previous work, we reported that the radiolytic reduction of Cu 2+ in W/O microemulsions was well controlled by adjusting the yield of hydrated electrons (e − aq ) [27]. Meanwhile, we found that it should be possible to control the shape of nanoparticles in the same way [27].…”

“…In our previous work, we reported that the radiolytic reduction of Cu 2+ in W/O microemulsions was well controlled by adjusting the yield of hydrated electrons (e − aq ) [27]. Meanwhile, we found that it should be possible to control the shape of nanoparticles in the same way [27]. To get deep insight into this issue, it is necessary to choose two similar systems in which the yield of e − aq is obviously different, whereas other effects are identical to a great extent.…”

Nanostructured diffusion-limited-aggregation crystal pattern formation in a reactive microemulsion system

“…Among the different nanostructures, diffusion-limited-aggregation (DLA) crystal growth patterns are attracting the attention of many scientists due to their importance connected to some fractal growth phenomenon and crystallography research, and because they have wide applications in micro-and nanodevices. The synthesis of nanostructured material under far-from-equilibrium conditions has emerged as an important new concept in the design of materials [11]. An oscillating chemical reaction is the most appropriate active media for the study of such a synthesis.…”