نتایج جستجو برای: ElectrochemicalImpedance Spectroscopy

تعداد نتایج: 171460  

Journal: :journal of physical & theoretical chemistry 2012
m. shahidi e. sasaei m. ganjehkaviri m.r. gholamhosseinzadeh

vanillin offers interesting possibilities for corrosion inhibition because of its safe use and highsolubility in water. the effect of vanillin on the corrosion inhibition of aisi 304 stainless steel in0.5m h2so4 solution has been studied using potentiodynamic polarization and electrochemicalimpedance spectroscopy (eis). furthermore, this paper demonstrates that the electrochemical noise(en) tec...

D. Ghazanfari Gh. Golestani M. Shahidi

In this paper, the effect of penicillin G drug as a green corrosion inhibitor on mild steel in 1.0 Mhydrochloric acid solution has been investigated using potentiodynamic polarization, electrochemicalimpedance spectroscopy (EIS) and electrochemical noise (EN) techniques. The inhibition efficiencywas found to increase with increasing inhibitor concentration. Potentiodynamic polarizationmeasureme...

M. Rezaei Nasab M. Shahidi S.M.A. Hosseini,

In this work, polypyrrole/CeO2 nanocomposite (NC) was synthesized in the presence of methylorange as a reactive self-degraded soft template. The field emission scanning electron microscopy(FESEM) images indicate that the CeO2 NPs have a nucleus effect and cause a homogenous PPycore–shell type morphology with an encapsulation of the CeO2 core by the PPy shell. The effect ofNC on acrylic waterbor...

E. Sasaei M. Ganjehkaviri M. Shahidi M.R. Gholamhosseinzadeh

Vanillin offers interesting possibilities for corrosion inhibition because of its safe use and highsolubility in water. The effect of vanillin on the corrosion inhibition of AISI 304 stainless steel in0.5M H2SO4 solution has been studied using potentiodynamic polarization and electrochemicalimpedance spectroscopy (EIS). Furthermore, this paper demonstrates that the electrochemical noise(EN) tec...

Journal: :journal of physical & theoretical chemistry 2013
m. shahidi gh. golestani d. ghazanfari

in this paper, the effect of penicillin g drug as a green corrosion inhibitor on mild steel in 1.0 mhydrochloric acid solution has been investigated using potentiodynamic polarization, electrochemicalimpedance spectroscopy (eis) and electrochemical noise (en) techniques. the inhibition efficiencywas found to increase with increasing inhibitor concentration. potentiodynamic polarizationmeasureme...

Journal: :journal of physical and theoretical chemistry 0
m. rezaei nasab department of chemistry, shahid bahonar university of kerman, kerman 76175, iran m. shahidi department of chemistry, kerman branch, islamic azad university, kerman, iran s.m.a. hosseini department of chemistry, shahid bahonar university of kerman, kerman 76175, iran

in this work, polypyrrole/ceo2 nanocomposite (nc) was synthesized in the presence of methylorange as a reactive self-degraded soft template. the field emission scanning electron microscopy(fesem) images indicate that the ceo2 nps have a nucleus effect and cause a homogenous ppycore–shell type morphology with an encapsulation of the ceo2 core by the ppy shell. the effect ofnc on acrylic waterbor...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده مهندسی شیمی 1393

در این پژوهش نحوه ساخت نانوکامپوزییت eva/ag و اثر ضد میکروبی آن در درصدهای مختلف نانو ذره نقره مورد بررسی قرار گرفته است.نانوکامپوزیت حاصل از نطر شکل شناختی ، اندازه ذرات، ساختمان شیمیایی ، با استفاده از تستهای sem(scanning electrou microscopy)،tem (transmission electron microscope) ، xrd (x-ray fluorescence spectroscopy) ،ftir (fourier transform infrared spectroscopy) مورد ارزیابی قرار گرفت. د...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

oxidative addition reactions of 1,4-diiodo-butane and 1,3-diiodo-propane with [ptme2(ph2phen)]; in which ph2phen=4,7-diphenyl-1,10-phenanthroline, were studied in different solvents such as acetone and benzene.oxidative addition reaction of [pt me2(ph2phen)] with i(ch2)4i and i(ch2)3i produced the [pt me2i(ch2)4(ph2phen)i] (1a) and [pt me2i(ch2)3(ph2phen)i] (1b).all the platinum (iv) products w...

Journal: :پژوهش فیزیک ایران 0
حبیب تجلی h. tajalli سهراب احمدی s. ahamdi

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پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1392

در این پژوهش، سنتز نانوبیوالیاف شیشه¬ای مزومتخلخل در دو سیستم sio2-cao-p2o5-tio2 و sio2-cao-p2o5 به روش الکتروریسی هم¬محور مورد بررسی قرار گرفت و پارامترهای غلظت و ولتاژ اعمالی در فرآیند الکتروریسی بهینه شد. سطح ویژه و حجم حفرات نانوبیوالیاف در دو سیستم sio2-cao-p2o5 و sio2-cao-p2o5-tio2، پس از عملیات حرارتی اندازه¬گیری شد. در مرحله بعد جهت بررسی رسانش دارو، از داروی مدل ایبوپروفن استفاده و این...

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