Morphological evolution of silver crystals produced by reduction with ascorbic acid

Formation and Oriented Aggregation of Tabular Hexagonal Silver Particles

“…Then, in this case, in order to observe the precipitation of silver particles, a larger amount of ascorbic acid is needed (~twice the quantity used in our protocol). Furthermore, our protocol for ascorbic acid concentration yielded well-separated tabular particles (Figure 1c), together with a few spherical particles, while using larger amounts of ascorbic acid gave only aggregated, tabular hexagonal silver particles, similar to those obtained by Fukuyo et al (Figure 8) [28]. Apparently, the addition of a greater amount of reducing agent helps the formation of tabular, hexagonal shaped particles.…”

Controlling synthesis of silver nanowires and dendrites in mixed surfactant solutions

“…Under the higher concentration of ascorbic acid (up to 1 mol l −1 ), silver dendrites were obtained (Fig. 4) because of the promotion of diffusion-limited growth with increasing reduction rate of Ag + ions [23]. However, the bulk quantities of bumpy and curly nanowires were obtained with relatively lower concentration (0.17 mol l −1 ), as shown in Figs.…”

“…2a and 2b. With the high concentration of ascorbic acid, which accelerates the reduction of AgNO 3 , the reaction rate is faster than that of the low concentration, resulting in the nonequilibrium system being easily built, which is beneficial in the formation of dendrites [8,23]. However, under the relatively low concentration of ascorbic acid, the rate of nucleation could be well matched with that of growth.…”

Insight into the fabrication and perspective of dendritic Ag nanostructures

“…Cluster formation occurs by adhering particles together with a random path to a certain seed in contact and then these particles form a growing structure. Surfactant or template control the nuclear and directional aggregate which give rise to a non-equilibrium system thereby in favour of forming Ag dendrites [101,102]. When dendritic Ag NPs were prepared at the solid/liquid interfaces via electroless deposition under Langmuir monolayers [103], it is clear a DLA process.…”