Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!
Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

One step paired electrochemical synthesis of iron and iron oxide nanoparticles

Ordoukhanian J., Karami H., Nezhadali A.

Materials Science Poland

2016

Vol. 34, No. 3

655--658

In this study, a new one step paired electrochemical method is developed for simultaneous synthesis of iron and iron oxide nanoparticles. iron and iron oxide are prepared as cathodic and anodic products from iron (ii) sulfate aqueous solution in a membrane divided electrolytic cell by the pulsed current electrosynthesis. Because of organic solvent-free and electrochemical nature of the synthesis, the process could be considered as green and environmentally friendly. The reduction of energy consumption and low cost are the other significant advantages of this new method that would have a great application potential in the chemical industry. The nanostructure of prepared samples was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The magnetic properties were studied by vibrating sample magnetometer (VsM).

Study of Complex Formation between Iodoquinol (IQ) and Co2,+ Mn2+, Cd2+, Pb2+ and Zn2+ Cations in DMF/EtOH Bi nary Solvent Mixtures Us ing Spectrophotometry

Nezhadali A., Hosseini H. A., Langara P.

Polish Journal of Chemistry

2009

Vol. 83, nr 4

573-580

The complexation reactions between iodoquinol and Co2+, Mn2+, Cd2+, Pb2+ and Zn2+ cations were studied in different DMF/EtOH binary mixtures at the ionic strength of 0.1 M sodium nitrate. The spectrophotometric method was used for the determination of stability constants and stoichiometries of complexes. Job’s and moleratio methods evidenced a 1:1 stoichiometry in all of the cases. It was found that the stability constants of the complex formed between the ligand (IQ) and the cations in all cases in crease with in creasing of EtOH per cent in binary mixtures. In the most cases the maximum formation constant for Zn2+–IQ complex was found.