نتایج جستجو برای: electrochemical impedance spectroscopy

تعداد نتایج: 246453  

Journal: :applied biotechnology reports 0
mohammad ebrahim minaei department of biology, imam hossein university, tehran, iran mojtaba saadati department of biology, imam hossein university, tehran, iran mostafa najafi department of chemistry, imam hossein university, tehran, iran hossein honari department of biology, imam hossein university, tehran, iran

in this study, we explained a nanobiosensor for dna sequence detection, featuring sequence specificity, cost efficiency, speed, and ease of use. without the need for labels or indicators, it may be ideal for the detection of biological agents. this review describes recent advances in electrochemical impedance spectroscopy (eis) with an emphasis on using nanoparticles and nanotechnology. a power...

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...

Journal: :international journal of nanoscience and nanotechnology 2010
d. zaarei a. a. sarabi* f. sharif s. m. kassiriha m. moazzami gudarzi

polymer-clay nanocomposite coatings have attracted much attention because of impressive enhancements of coating properties. in this research, both commercially available and isophoronediamine-modified montmorillonite clays were used to obtain epoxy-clay nanocomposite coatings. these nanocomposite materials with different clay loadings in the form of coatings were applied to cold-rolled steel (c...

Journal: :journal of physical & theoretical chemistry 2014
hossein tajabadipour mehdi shahidi nima karachi

vanillin is an interesting corrosion inhibitor because of its safe use and high solubility inwater. the effect of vanillin on the corrosion inhibition of carbon steel in 1.0 mhydrochloric acid solution has been studied using potentiodynamic polarization,electrochemical impedance spectroscopy (eis) and electrochemical noise (en) techniques.the effect of temperature on the rate of corrosion in th...

2011

In the previous lecture, we leant about impedance spectroscopy. Electrochemical impedance spectroscopy is the technique where the cell or electrode impedance is platted versus frequency. Thus, the impedance is measured as a function of the frequency of the AC source. Electrochemical impedance spectroscopy is a useful method for investigating porous electrodes, which are extensively used in the ...

Journal: :physical chemistry research 0
mehdi shahidi zandi islamic azad univedrsity, kerman branch ghasem golestani islamic azad university, kerman branch mohammad reza gholamhosseinzadeh islamic azad university, kerman branch

the effect of mentha spicata l. extract on the corrosion behaviour of carbon steel in 1.0 m hcl solution was investigated using polarization, electrochemical impedance spectroscopy (eis) and electrochemical noise (en) techniques. the solution containing 250 ppm of the ethanolic solution of extract showed the highest inhibition efficiency (ie). the effect of temperature on the rate of corrosion ...

Journal: :iranian journal of hydrogen and fuel cell 0
ebrahim alizadeh malek ashtar university of technology, fuel cell technology research laboratory majid khorshidian malek ashtar university of technology, fuel cell technology research laboratory seyed majid rahgoshay malek ashtar university of technology, fuel cell technology research laboratory seyed hossein masrori saadat malek ashtar university of technology, fuel cell technology research laboratory mazaher rahimi-esbo malek ashtar university of technology, fuel cell technology research laboratory

electrochemical impedance spectroscopy (eis) is a suitable and powerful diagnostic testing method for fuel cells (fcs) since it is non-destructive and provides useful information about fc performance and its components. in this study, for the first time, a 500w cascade type 4 cells stack with integrated humidifier, water separator and internal manifolds was designed, fabricated and tested. the ...

Journal: :iranian journal of analytical chemistry 2015
nasrin soltani

the corrosion inhibition characteristics of two synthesized schiff bases, namely n, n´-bis(2-hydroxy-6-nitrobenzaldehyde) benzidine  and n, n´-bis(salysylaldehyde) benzidine, on the mild steel corrosion in 2.0 m hydrochloric acid have been investigated by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy techniques. these studies were carried out at different ...

Journal: :analytical and bioanalytical chemistry research 0
akram valipour department of chemistry, ilam university, ilam, iran mahmoud roushani department of chemistry, university of ilam, ilam, iran

a highly sensitive electrochemicalimmunosensor was developed to detect hcg based on immobilization ofhcg-antibody (anti-hcg) onto robust nanocomposite containing gr, chit,1-methyl-3-octyl imidazolium tetra fluoro borate ionic liquid (il)(gr-il-chit). aunps were used to immobilize hcg antibody on the modifiedelectrode. the amine groups of the antibody are covalently attached toaunps/gr-il-chit n...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید