Controllable synthesis of conducting polypyrrole nanostructures

Article Abstract:

Various surfactants and oxidizing agents are used together for the controllable synthesis of wire-, ribbon-, and sphere-like nanostructures of polypyrrole by polymerization. The analysis shows that the morphologies of the resulting polypyrrole nanostructures are greatly dependant on the monomer concentration, surfactant concentration, and surface chain length, which gives pure and doped nanostructures.

Methods, Chemical synthesis, Pyrrole, Pyrroles

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Time-resolved infrared spectroscopy as an in situ tool to study the kinetics during self-assembly of mesostructured films

Article Abstract:

Rapid scan time-resolved infrared spectroscopy is used to investigate in situ the kinetics of the chemical processes involved in the formation of self-assembled mesostructured films. This method can be extended to the study of deposition of films from liquid phases, such as sol-gel films, and can visualize in a simple and direct way the different processes and their relative kinetics.

Usage, Design and construction, Infrared spectroscopy, Block copolymers, Films (Materials)

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Shape evolution and size-controllable synthesis of Cu2O octahedra and their morphology-dependent photocatalytic properties

Article Abstract:

Octahedral Cu2O crystals with tunable edge length are synthesized by reducing copper hydroxide with hydrazine without using any surfactant and the factors impacting the morphology and size of the products are investigated. The octahedral Cu2O particles have shown improved ability on adsorption and photodegradation of methyl orange when compared with cubic Cu2O particles.

Copper oxide, Copper oxides, Hydrazine, Hydrazine (Compound)

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