CHEMICAL PROBLEMS

Abstract In this study, we synthesized nanostructured anodic aluminum oxide (AAO) membranes through the two-step anodization process using oxalic acid as the electrolyte. The main objective was to investigate how the electrolyte temperature influences the formation of pores in the AAO membranes. Key parameters, including pore diameter, interpore distance, thickness, and porosity, were measured and […]

Abstract A series of novel Schiff bases linked to Furanoanthracene-12,14-Dione (5-10) were synthesized. The first step involved the reaction of anthracene with maleic anhydride, which produced dione (1). The next step was treated the dione with aniline to produce the imide (2). In the third step, the prepared imide was reacted with chlorosulfonic acid, leading […]

Abstract The current work focuses on using Schiff base ligand a tetra-dentate (cipro-p-phd) made from Ciprofloxacin and p-phenylenediamine. UV-visible spectroscopy, 1H-NMR, FT-IR, TGA, (C.H.N), as well as measuring magnetic susceptibilities, fusion point and molar conductivity were used to examine the compounds. The physical measurement showed that the ligand was linked to the central atoms by […]

NEW PICTURE OF PHASE EQUILIBRIA IN THE Cu-As-Se SYSTEM AND THERMODYNAMIC PROPERTIES OF TERNARY COMPOUNDS

Abstract The paper reports the results of mathematical modeling and optimization of the process of obtaining thin films based on Mo-Re alloy by electrodeposition. The study of electrodeposition of Mo-Re alloys was carried out using methods of potentiodynamic, galvanostatic, and cyclic voltammetry under different conditions on a Pt electrode. Studies have been conducted using the […]

Abstract This research presents a novel approach to addressing the challenges in recycling polyethylene and polypropylene (PE/PP) waste. Since PE and PP-based waste generally originates from the same household and industrial sources, they are often encountered as a mixture. Due to their differing physicochemical properties, separating these polymers becomes necessary prior to recycling. However, the […]

Abstract The replacement of noble metal-based catalytic systems with oxide catalysts based on transition metals of variable valency for the oxidation of carbon monoxide, the reduction of catalyst production costs, and simultaneously the reduction of energy costs for carrying out the reaction is a pressing issue. In this work, binary copper ferrites and ternary copper-manganese-iron […]