A5100692148- Corrosion Behavior and Inhibition
- Hydrogen embrittlement and corrosion behaviors in metals
- Electrochemical Analysis and Applications
- Metal Extraction and Bioleaching
- Recycling and Waste Management Techniques
- Concrete Corrosion and Durability
- Water Quality Monitoring and Analysis
- Radioactive element chemistry and processing
- Advanced Machining and Optimization Techniques
- Luminescence and Fluorescent Materials
- Extraction and Separation Processes
- Electrochemical sensors and biosensors
- Organic Electronics and Photovoltaics
- Nonlinear Optical Materials Research
- Non-Destructive Testing Techniques
- Radioactive contamination and transfer
- Conducting polymers and applications
- Analytical Chemistry and Sensors
- Crystallization and Solubility Studies
- Microbial Fuel Cells and Bioremediation
- Chemical Synthesis and Characterization
- Iron oxide chemistry and applications
- Graphite, nuclear technology, radiation studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
Universidad Autónoma del Estado de Hidalgo
2016-2025
National University of San Marcos
2023
Universidad Complutense de Madrid
1994-2018
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
1996-2018
Universidad Autónoma Metropolitana
1998-2008
Mexicali Institute of Technology
2007
Central University of Venezuela
2004-2005
Universitat Jaume I
2004
Mexican Institute of Petroleum
2002
Universidad de Extremadura
2001
Comparative voltammetric studies were performed between high purity pyrite mineral (98.86%) and arsenopyrite (content of 85.96% arsenopyrite, FeAsS; 11.84% pyrite, FeS2; 0.98% galena, PbS; 0.06% chalcopyrite, CuFeS2) in order to analyze the galvanic effect on electrochemical reactivity two different mineralogical phases when these are associated same mineral, using carbon paste electrodes (CPE) 0.1 M NaNO3 (pH 6.5) as electrolyte. Theoretical for a more detailed analysis total energy...
Abstract magnified image An efficient and fast procedure for the synthesis of 2‐(2‐pyridyl)azoles is described using ionic liquids as catalysts under microwave irradiation. The X‐ray crystallographic analyses three four synthesized compounds are presented. Potentiodynamic polarization studies were carried out to analyze electrochemical behavior in corrosive acidic media. Of derivatives, one compound was detected be an effective corrosion inhibitor prototype oil refinery environments.
Abstract An electrochemical study of corrosion behavior for carbon steel in a solution like NACE TM0177 after adding pyridine derivatives is presented. Weight-loss measurements, as the modification potentials toward less negative (in linear polarization) presence compounds, indicated inhibition process; however, potentiodynamic polarization curves showed an acceleration oxidation process. analysis impedance spectroscopy (EIS) spectra by equivalent circuit fitting charge-transfer resistances...
This study shows the inhibitory activity of hexane, acetone and methanol extracts Brugmansia arborea (B. arborea) during corrosion 1018 steel in 0.5 M H2SO4. was carried out by electrochemical impedance spectroscopy (EIS) potentiodynamic polarization curves (PDP) techniques. The maximum efficiency for three registered with 400 500 ppm concentrations, obtaining 98% EIS 80% PDP. Through PDP, an inhibition behavior cathodic type determined. During residence time test, B. reached a at 24 h...
Abstract The study of a macromolecule derived from DPP and triphenylamine, ( DPP-BisTPA ) by computational chemistry, its synthesis direct arylation, optical characterization (UV-Vis fluorescence) electrochemistry (cyclic voltammetry), as well evaluation generator reactive oxygen species indirectly, through the degradation uric acid. results obtained DFT using B3LYP/6-31G (d, p) TD-DFT CAM-B3LYP/6-31G reveal values energy levels first singlet triplet excited state that indicate possible...
In this work, two oligophenyleneimines type pentamers with terminal aldehydes, designated as DAFCHO (4,4'-((((((2,5-bis(octyloxy)-1,4-phenylene)bis(methanylylidene))bis(azanyl ylidene))bis(9H-fluorene-7,2-diyl))bis(azanylylidene))bis(methanylylidene))bis(2,5-bis(octyloxy) benzaldehyde)) and FDACHO (4,4'-((((((2,5-bis(octyloxy)-1,4-phenylene)bis(methanylylidene))bis (azanylylidene))bis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(2,5-bis(octyloxy) were synthesized by...
In this work, the corrosion behavior of carbon steel AISI 1018 immersed in a sour water sample solution collected from refinery plant, was studied, varying temperature between 25 to 50°C with and without stirring. Polarization curves indicate negligible modification anodic branch stirring; but, cathodic is more sensitive change. Also, analysis surface samples by scanning electron microscopy (SEM) shows no film products. The values electrochemical noise localization index (LI), that sites...
The present work is related to the treatment of crushed waste printed circuit boards (WPCBs) from electrical and electronic devices (WEEE), carrying out recovery copper in solution. In first stage, studied material was characterized by AAS, SEM-EDS, XRD. results revealed significantly high amounts (744.42 mg/g), compared with rest metals sample, mainly iron zinc. second stage work, alkali dynamic leaching experiments were carried S2O3−2− O2 medium, evaluating important kinetic variables...
In this work a Metal-Organic Framework (MOF) was prepared using solvothermal method, taking as precursors 1. 2-di-(4-pyridyl)-ethylene, 1.2.4.5-benzenetetracarboxylic acid and Co(No3)2-6H2O. This MOF called UV-11 evaluated microscopic, spectroscopic electrochemical techniques. According to the obtained results, melting point of compound is located in higher interval than its precursors. Stereoscopic microscopy analysis shows presence pink crystals form needles. MEB technique displays laminar...
In the transition from small molecules to solids, atomic clusters are studied widely not only because they can own unique properties due nanosized effect but also represent an intermediate stage. A systematic study on structures and of as a function size could give information bulk determine at what cluster mimic solid least some extent. The adsorption capability furan derivatives 2-furfurylamine, 2-furfuryl alcohol mercaptan with different iron-clusters was by DFT. results show that since...