Electrosynthesis of ZnO nanorods and nanotowers: Morphology and X-ray Absorption Near Edge Spectroscopy studies

Sığırcık, Gökmen; Erken, O.; Tüken, Tunç; Gümüş, C.; Özkendir, Osman Murat; Ufuktepe, Y.

doi:10.1016/j.apsusc.2015.02.166

Cited by 17 publications

(10 citation statements)

References 37 publications

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“…At the earlier potentials of polarization, adsorbed inhibitor molecules slowed down the adsorption of chloride ions at the interface. With the potential moved, inhibition layer molecules cannot block chloride corrosion, thus this phenomenon can usually attribute to the resolution process of inhibitor molecules on carbon steel surface [24] . Table 4 listed the electrochemical parameters calculated from the polarization curves, including corrosion potential (

E_{c o r r}

), anode Tafel slope (

b_{a}

), cathode Tafel slope (

b_{c}

), corrosion current density (

I_{c o r r}

), and inhibition efficiency ( η ).…”

Section: Resultsmentioning

confidence: 99%

1‐Vinyl‐3‐allyl Imidazolium Bromide as a New Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

Chen

Yang

2020

ChemistrySelect

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The performance of 1-vinyl-3-allyl imidazolium bromide ([VAIM] [Br]) for inhibiting the corrosion of carbon steel in 1 M HCl solution from 298 K to 338 K was assessed. Electrochemical impedance spectroscopy (EIS) measurements proved that the inhibition efficiency (η) of [VAIM][Br] was as high as 95 %, and after immersion of 144 h, η still kept more than 90 %. Polarization curve verified that [VAIM][Br] acted as a mixed-type inhibitor and adsorption of [VAIM][Br] was found to obey Langmuir adsorption isotherm. Molecular dynamic simulations suggested that the addition of vinyl group increased interaction energy between [VAIM] + and (0 0 1) plane of Fe from 43.92 kcal mol À 1 to 71.98 kcal mol À 1. Liquid chromatographymass spectrometry (LC-MS) and UV-vis spectrum demonstrated that [VAIM][Br] and Fe atom can form stable complex (Fe 2 (VAIM) 2 Br 4), which hindered the corrosion of carbon steel.

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E_{c o r r}

), anode Tafel slope (

b_{a}

), cathode Tafel slope (

b_{c}

), corrosion current density (

I_{c o r r}

), and inhibition efficiency ( η ).…”

Section: Resultsmentioning

confidence: 99%

1‐Vinyl‐3‐allyl Imidazolium Bromide as a New Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

Chen

Yang

2020

ChemistrySelect

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“…Where K is a constant, β is the FWHM in radians, λ is the wavelength of X‐ray used, θ is the Bragg angle, was used for the calculation of crystallite sizes. K value is taken as 0.9 for the calculations …”

Section: Resultsmentioning

confidence: 99%

“…K value is taken as 0.9 for the calculations. 38,39 In Figure 7, FeNi-mesh electrodes were scanned by the SEM device at two different magnification sizes (5 and 50 μm), before (A, A') and after (B, B') discharge.…”

Section: Resultsmentioning

confidence: 99%

The behavior of chemical and electrochemical Ag deposition on FeNi‐mesh cathodes in Al‐air battery

Mutlu

Yazıcı

2018

Int J Energy Res

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Summary In this study, FeNi/Ag cathode was made for aluminium air battery. For this purpose, FeNi‐mesh electrode surfaces were treated in two different ways (chemical and electrochemical deposition), with noble metal silver having a high catalytic activity. The optimum time for both methods was determined. The electrochemical properties were determined using cyclic voltammogram (CV), electrochemical impedance spectroscopy (EIS), and current‐potential (i‐t) curves. The battery performance tests were performed, and surface characteristics of the electrodes were determined with a scanning electron microscope an X‐ray diffraction method (SEM‐EDS and XRD). This study shows that FeNi mesh electrodes chemically and electrochemically deposited with silver are alternative for oxygen‐reducing cathodes for aluminium air battery because they are cheap, practical, and effective. The electrochemical (FeNi/Ag‐ED) deposition is better than the chemical (FeNi/Ag‐CD) deposition in terms of both economical and higher battery potential.

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“…15 Until now, different ZnO nanomorphologies such as nanotubes, 16 nanodisks, 17 nanowires, 18 nanobelts, 19 nanobridges, 20 nanonails 20 and nanocombs 21 have been known to be synthesized by various methods such as chemical vapor deposition, 22 thermal oxidation, 23 molecular beam epitaxy, 24 hydrothermal 25 and electrochemical. 26 ZnO which has hexagonal wurtzite structure is known as polar crystal. The structure includes both ended positively Zn 2+ (0001) and ended negatively O 2− 000 1 ð Þ surfaces.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical synthesize and characterization of ZnO / ZnS nanostructures for hydrogen production

Sığırcık

Aydın

2020

Int J Energy Res

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In present study, zinc oxide/zinc sulfide (ZnO/ZnS) nanostructures were fabricated by anodization of Zn. The morphological, structural and compositional properties of ZnO/ZnS were studied by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). From FESEM results, welldefined and smooth spherical-like ZnO/ZnS nanostructures were obtained with tube-like ZnO nanostructures underneath the compact layer. XRD patterns revealed that achieved materials offer high crystallinity hexagonal ZnO as dominant with hexagonal close-packed polycrystalline Zn. Moreover, measure of water contact angle was realized to learn about wetting property of the electrodes. Electrochemical impedance spectroscopy (EIS) was recorded to examine electrocatalytic performance of electrodes against hydrogen evolution reaction (HER) in 1 M KOH solution. The values of energy consumption and energy efficiency were calculated as 571.9 kJ mol −1 and 49.5% at current density of 50 mA cm −2 for the HER on 40-ZnO/ZnS/Zn electrode at 25 C.

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Electrosynthesis of ZnO nanorods and nanotowers: Morphology and X-ray Absorption Near Edge Spectroscopy studies

Cited by 17 publications

References 37 publications

1‐Vinyl‐3‐allyl Imidazolium Bromide as a New Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

1‐Vinyl‐3‐allyl Imidazolium Bromide as a New Corrosion Inhibitor for Carbon Steel in 1 M HCl Solution

The behavior of chemical and electrochemical Ag deposition on FeNi‐mesh cathodes in Al‐air battery

Electrochemical synthesize and characterization of ZnO / ZnS nanostructures for hydrogen production

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