June 2015

Unexpected mixed valence iron(II, III) µ3-oxo furfuryl complex with wheel motif isolated when preparing iron(II) arene complexes

A series of new compounds including 2-({[(4-(propoan-2-yl)benzyl]Oxy}methyl)tetrahydrofuran ligand were tested in order to link auxiliary and labile ligands to iron arene complexes. The given reaction of benzyletherfurane ligand with Fe (II) sources resulted to the isolation of unexpected mixed valence µ3-oxo-Fe6IIFeIII compound, which has been fully characterized by x-ray crystallography. The resulting complex...

Author(s): Roger Mafua, and Jean-Luc Débieux

June 2015

Inhibitive and adsorptive effect of Parinari polyandra on mild steel corrosion in aqueous sulphuric acid

The inhibition of mild steel corrosion in 0.5 M sulphuric acid solution by ethanol extracts of Parinari polyandra as an eco-friendly inhibitor was studied at different temperatures by weight loss technique and linear polarization. The test plant extracts has a promising inhibitory action against corrosion of mild steel in the sulphuric acid media. The inhibition efficiencies increase with a corresponding increase in the...

Author(s): F. E. Awe, S. O. Idris, M. Abdulwahab and E. E. Oguzie

June 2015

A study of the morphology and optical properties of electro polished steel in the presence of Vitamin-C

The studies of steel electrochemical polishing Electropolishing (EP) in orthophoshoric acid were performed by potentiodynamic polarization. Electropolishing was conducted in solution containing Vitamin C. Addition of Vitamin C to electropolishing solution results in a lower limiting current. Vitamin C concentration influence on electropolishing process and surface texture (AFM, SEM) and UV-VIS-NIR Spectroscopy was...

Author(s): Fatma M. Abouzeid