Investigating Rhodanine film formation on roughened Cu surfaces with electrochemical impedance spectroscopy and surface-enhanced Raman scattering spectroscopy

Honesty, Nicole R.; Kardaş, Gülfeza; Gewirth, Andrew A.

doi:10.1016/j.corsci.2014.01.038

Cited by 17 publications

(11 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As is known to all, electrochemical impedance spectroscopy (EIS) is a unique and powerful technique that is often used to investigate the corrosion/protection mechanism of materials under severe conditions [33][34][35][36][37]. Herein, in order to further confirm the formation of silica passivating on the AO-exposed membrane surface, the EIS of polyimide samples (before and after AO exposure) was tested and the impedance spectra were fitted using electrical equivalent circuits with Ec-Lab impedance software to give the equivalent circuits (ECs).…”

Section: Evolution Of Surface Chemistry Of Resulting Polyimides In Simentioning

confidence: 99%

Evolution of surface chemistry and morphology of hyperbranched polysiloxane polyimides in simulated atomic oxygen environment

et al. 2015

View full text Add to dashboard Cite

Section: Evolution Of Surface Chemistry Of Resulting Polyimides In Simentioning

confidence: 99%

Evolution of surface chemistry and morphology of hyperbranched polysiloxane polyimides in simulated atomic oxygen environment

et al. 2015

View full text Add to dashboard Cite

“…It is clearly seen that from Bode plots (Figure D), rebar‐BS has higher polarization resistance than the rebar‐Ref. This could be explained by the protective BS film occurring on the steel surface …”

Section: Resultsmentioning

confidence: 96%

“…This could be explained by the protective BS film occurring on the steel surface. 48 R s -time and R p -time, which were calculated from Bode plots, are given in Figure 12. In this system, R s of the rebar-Ref is higher than the rebar-BS during most of the measurements ( Figure 12A).…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

Comprehensive investigation of butyl stearate as a multifunctional smart concrete additive for energy‐efficient buildings

et al. 2019

Self Cite

View full text Add to dashboard Cite

Summary Using of phase change materials (PCM) for increasing energy savings in sustainable buildings is receiving a lot of interest in commercial applications. Butyl stearate (BS), as PCM, can be used to maintain ambient temperature in the human comfort zone and prevent temperature fluctuations by enhancing the thermal properties of concrete. The long‐term effects of BS on concrete are not well known. In this study, the applicability of BS, as a smart concrete additive, by direct incorporation in the concrete structure was investigated comprehensively including thermal, rheological, and corrosion behaviour. The thermal characterization of PCM was achieved using DSC, TGA, thermal conductivity, and thermal buffering experiments. Thermal storage capacity of BS was measured to be 134.2 J/g, which is high enough to be used for passive solar energy storage in buildings. The fresh concrete experiments revealed that workability and flowability of fresh concrete mixes were improved. The maximum hydration temperature was reduced, and a retarding effect was observed by the addition of BS. Moreover, the corrosion behaviour of steel embedded in concrete with BS as PCM was studied in a solution of NaCl (3.5 wt%) representing an aggressive environment by utilizing electrochemical impedance spectroscopy (EIS) for long‐term corrosion tests that lasted for 1 year. The open circuit potential of steel in concrete with BS showed noble potential indicating low corrosion probability. The FESEM images and polarization resistance (Rp) values showed that the addition of BS in concrete decreases corrosion of the rebar in comparison with concrete without BS. Addition of BS not only enhances thermal capacity but also exhibits corrosion protection of rebar by hindering penetration of chloride ions into the concrete.

show abstract

“…According to earlier reports, pRh nanofibers with silver ions and electrochemical film formation on copper surfaces are known. 3,10 In our studies, the core–shell micro-/nanostructures were obtained by the simple copper(II)-promoted self-assembly method in green solvents such as ethanol. Similar structures were obtained when the reactions were carried out in water.…”

Section: Results and Discussionmentioning

confidence: 99%

Convenient and Template-Free Route to One-Pot Green Synthesis of Polyrhodanine Core–Shell Nanoparticles

et al. 2018

View full text Add to dashboard Cite

In this publication, a copper acetate-mediated rhodanine polymerization reaction is examined. It is demonstrated that at room temperature, Cu(II) acetate complexes with rhodanine generate solid nanospheres, which, upon heating in a microwave, results in polyrhodanine core–shell nano- and microsphere particles. The structural analysis of the polyrhodanine nanosphere produced by this efficient microwave-initiated method was conducted by Fourier transform infrared spectroscopy, UV–vis spectroscopy, scanning electron microscopy, and transmission electron microscopy. In addition, it is verified that this template-free, efficient, and versatile synthesis of polyrhodanine nanospheres can also be accomplished by introducing a strong oxidant KMnO 4 as a cocatalyst with copper acetate without compromising the morphology of the resulting core–shell nanospheres. It is also demonstrated that the polyrhodanine nanospheres can be used to adsorb methyl orange dye, a known contaminant in industrial wastewater.

show abstract

Investigating Rhodanine film formation on roughened Cu surfaces with electrochemical impedance spectroscopy and surface-enhanced Raman scattering spectroscopy

Cited by 17 publications

References 52 publications

Evolution of surface chemistry and morphology of hyperbranched polysiloxane polyimides in simulated atomic oxygen environment

Evolution of surface chemistry and morphology of hyperbranched polysiloxane polyimides in simulated atomic oxygen environment

Comprehensive investigation of butyl stearate as a multifunctional smart concrete additive for energy‐efficient buildings

Convenient and Template-Free Route to One-Pot Green Synthesis of Polyrhodanine Core–Shell Nanoparticles

Contact Info

Product

Resources

About