Macroscopically structured polymer formation governed by spatial patterns in the Belousov–Zhabotinsky reaction

Electrochemical Preparation of Copper Nanoparticles in an Oscillatory Belousov–Zhabotinsky Medium

“…Here, unique spatial structures could only be observed when the BZ reaction exhibited spatial patterns. 12 In complement to these existing approaches, this study explored the use of an oscillatory reaction medium to affect the growth of nanoparticles, where the precursor concentration may vary periodically or irregularly in time. The oscillating concentration, which may occur in a large variety of manners including periodic, quasiperiodic, and chaotic patterns, is expected to create unforeseeable routes for the growth of crystals and potentially yield new morphologies.…”

“…Recent advances in the study of nanomaterials have shown that the shape and size of a substance have significant influences on its physical and chemical properties. − A number of methods have been investigated in the last two decades for the controlled synthesis of nanomaterials, which include the manifestation of nucleation sites for crystal growth, the use of surfactants for preferential adsorption/growth along specific faces, and so forth. − By coupling a polymerization process to a chemical oscillator, researchers have been able to develop a unique approach to synthesizing polymers. − Pojman et al demonstrated that with the addition of acrylonitrile to the Belousov–Zhabotinsky (BZ) reaction solution, the polymerization process would only occur within the oscillatory regime. In addition, the polymerization process was found to occur in phase with the BZ oscillations. , Later, Kalishyn et al reported the formation of a macroscopically structured cross-linked polyacrylamide hydrogel in the BZ reaction.…”

“…In addition, the polymerization process was found to occur in phase with the BZ oscillations. , Later, Kalishyn et al reported the formation of a macroscopically structured cross-linked polyacrylamide hydrogel in the BZ reaction. Here, unique spatial structures could only be observed when the BZ reaction exhibited spatial patterns . In complement to these existing approaches, this study explored the use of an oscillatory reaction medium to affect the growth of nanoparticles, where the precursor concentration may vary periodically or irregularly in time.…”