Hossnia Saber Mohran

Professor - Professor

Faculty of science

Address: Chemistry Department Faculty of Science Sohag University

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Chemistry is life

Professor Doctor Hossnia Saber Mohran

Non Organic Chemistry

Demonstrator at Chemistry Department, Faculty of Science, Sohag branch, Assuit University, 1976, Assistant Lecturer at Chemistry Department, Faculty of Science, Sohag branch, Assuit University, 1980, Full Egyptian Government Mission+ Overseas award toGreat Britain 1982-1968, Lecturer at Chemistry Department, Faculty of Science, Sohag branch, Assuit University, 1986, Assistant Prof. at Chemistry Department, Faculty of Science, Sohag branch, South valley University 1995, Professor at Chemistry Department Faculty of Science Sohag University 2009.

البحث

2018-10-19 15:43:57

كل طالب بحث يجمع الابحاث المنشورة على الموضوع الخاص به للاطلاع عليها اولا Read more

طلاب البحث والمقال

2018-10-19 14:55:09

الميعاد الدورى للمقابلة يوم الاربعاء من كل اسبوع من الساعة الرابعة عصرا Read more

بحث ومقال

2018-10-05 19:01:27

ارجو من طلاب البحث والمقال التواصل فى اقرب وقت لتحديد مواعيد العمل شكرا Read more

امتحان نصف الفصل

2018-10-04 20:19:34

امتحان نصف الفصل سوف يعقد فى الاسبوع الاول من شهر نوفمبر Read more

محاضرة

2018-09-27 18:56:44

محاضرة الانثانيدات والاكتينيدات للفرقة الرابعة تشعيب يوم الثلاثاء من الساعة الواحدة ظهرا الى الساعة الثانية بمدرج د Read more

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Effect of Indium Alloying with Lead on the Mechanical Properties and Corrosion Resistance of Lead-Indium Alloys in Sulfuric Acid Solution

2018-10-04 19:42:32 | Keywords Corrosion Rate, Electrochemical Impedance Spec, Corrosion Potential, Corrosion Current Density, corrosion resistance, ,

Eﬀect of indium alloying in various concentrations with lead on both microhardness and crystallite structure of lead-indium alloy was investigated. The corrosion behavior of leadindium alloys in 4 M H2SO4 acid solution was investigated by Tafel plot and electrochemical impedance spectroscopy (EIS) methods. The results of both Tafel plot extrapolation and EIS measurements exhibited the same trend. Generally, the corrosion ... Read more

Effect of indium alloying with lead together with the addition of phosphoric acid in electrolyte to improve lead-acid battery performance

2018-09-30 20:15:53 | Keywords Lead/acid battery, Phosphoric acid, Indium content, Lead-indium alloy, Corrosion,

The electrochemical and corrosion behavior of Pb and Pb-In alloys in both phosphoric and sulfuric acid solutions containing various concentrations of phosphoric acid (0.05 to 0.20 M) at different temperatures was studied. Tafel plot and electrochemical impedance spectroscopy (EIS) techniques were used to obtain the experimental data, and the corrosion products formed on the surface were characterized by scanning electron ... Read more

Effect of nickel content on the anodic dissolution and passivation of zinc–nickel alloys in alkaline solutions by potentiodynamic and potentiostatic techniques

2018-09-30 20:47:45 | Keywords Metal alloys, anodic dissolution, passivation, Electron microscopy, X-ray diffraction,

The effect of systematic increase of Ni on the anodic dissolution and passivation of Zn–Ni alloys in var-ious concentrations of KOH solution (0.1–1 M) was investigated. The anodic dissolution and passivation behaviourfor each pure Zn and Ni in the same studied solutions was also investigated, and the obtained data were compared.Potentiodynamic and potentiostatic methods were used, and the corrosion layer ... Read more

Role of Ni content in improvement of corrosion resistance of Zn–Ni alloy in 3.5% NaCl solution. Part I: Polarization and impedance studies

2018-09-27 18:01:18 | Keywords Zn–Ni alloy, Ni content, corrosion resistance,

Zn plays an important role in the protection of iron and steel from corrosion in sea water, and the alloying of Zn and Ni can improve its corrosion resistance. The corrosion behavior of Zn–Ni alloys in synthetic sea water (3.5% NaCl, mass fraction) was studied using Tafel plot and electrochemical impedance spectroscopy (EIS) techniques. The corrosion resistance of the investigated ... Read more

Role of Indium Alloying with Lead as a Means to Reduce the Passivation Phenomena in Lead/Acid Batteries

2018-10-04 19:56:12 | Keywords Lead/Acid Batteries, Passivation Phenomena, Lead-indium alloy,

The influence of indium content on the anodic behaviour of Pb-In alloys in 4 M H2SO4 solution is investigated by potentiodynamic, potentiostatic, chronopotentiometric, and cyclic voltammetric techniques. The composition and microstructure of the corrosion layer on Pb-In alloys are characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy analysis (EDX), and scanning electron microscopy (SEM). The potentiodynamic and chronopotentiometric curves show ... Read more

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AddressChemistry Department Faculty of Science Sohag University
Phone201023563527
Fax20934601159
Emailhossnia_saber@science.sohag.edu.eg

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