An-Najah National University

About: An-Najah National University is a education organization based out in Nablus, Palestinian Territory. It is known for research contribution in the topics: Population & Adsorption. The organization has 1857 authors who have published 2607 publications receiving 68226 citations. The organization is also known as: An Najah National University.

4-(2-(2-(2-(2-(Pyridine-4-yl)ethylthio)ethoxy)ethylthio)ethyl)pyridine as New Corrosion Inhibitor for Mild Steel in 1.0 M HCl Solution: Experimental and Theoretical Studies

Abstract: The inhibition effect of 4-(2-(2-(2-(2-(pyridine-4-yl)ethylthio)ethoxy)ethylthio)ethyl)pyridine (P4E4P) on mild steel corrosion in 1.0 M HCl solution was investigated by quantum chemical calculations, electrochemical techniques, and weight loss measurements. The experimental results reveal that this compound has a good inhibiting effect and the inhibition efficiency, increased with the inhibitor concentration to reach 97% at 1 mM. The effect of temperature on the corrosion behavior of mild steel has been examined in the temperature range of 308–353 K. The inhibition efficiency increases with increasing inhibitor concentration, but decreases with increasing temperature. The adsorption of the inhibitor on mild steel surface obeyed the Langmuir adsorption isotherm. The kinetic and thermodynamic parameters for mild steel corrosion and inhibition adsorption, respectively, were determined and discussed. Potentiodynamic polarization suggested that it is a mixed type of inhibitor. Data obtained from EIS measurements were analyzed to model the corrosion inhibition process through the appropriate equivalent circuit model. Quantum chemical calculations were employed to study the electronic properties of P4E4P to ascertain the correlation between the inhibitory effect and the molecular structure. Both the experimental and theoretical results are in good agreement with each other in this regard and confirm that P4E4P is an effective inhibitor.

Covalent Functionalization of Graphene Sheets with Different Moieties and Their Effects on Biological Activities.

Abstract: The ongoing spread of multi-drug-resistant bacteria over the past few decades necessitates collateral efforts to develop new classes of antibacterial agents with different mechanisms of action. The...

Measurement of the inclusive isolated-photon cross section in pp collisions at √s = 13 TeV using 36 fb−1 of ATLAS data

Abstract: The differential cross section for isolated-photon production in pp collisions is measured at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC using an integrated luminosity of 36.1 fb−1. The differential cross section is presented as a function of the photon transverse energy in different regions of photon pseudorapidity. The differential cross section as a function of the absolute value of the photon pseudorapidity is also presented in different regions of photon transverse energy. Next-to-leading-order QCD calculations from Jetphox and Sherpa as well as next-to-next-to-leading-order QCD calculations from Nnlojet are compared with the measurement, using several parameterisations of the proton parton distribution functions. The predictions provide a good description of the data within the experimental and theoretical uncertainties.