scholarly journals HR-SEM and FT-IR dataset for Green corrosion inhibition activity of 4-{[4-(pyridin-2-yl)piperazin-1-yl]methyl}aniline at CO2 atmosphere

Data in Brief ◽  
2021 ◽  
pp. 107492
Author(s):  
Raman Govindhan ◽  
Srinivasan Anbalagan ◽  
Meenakshisundaram Ravishankar
2005 ◽  
Vol 11 (9) ◽  
pp. 2705-2715 ◽  
Author(s):  
Hiram I. Beltrán ◽  
Raquel Esquivel ◽  
Marcelo Lozada-Cassou ◽  
Marco A. Dominguez-Aguilar ◽  
Arturo Sosa-Sánchez ◽  
...  

2016 ◽  
Vol 230 (8) ◽  
Author(s):  
Hany M. Abd El-Lateef ◽  
Mohamed Ismael ◽  
Ahmed H. Tantawy

AbstractThree different surfactants based on fatty acids (octanoic, tridecanoic and oleic) and ethylenediamine were synthesized and their chemical structures were confirmed by FT-IR,


2018 ◽  
Vol 2018 ◽  
pp. 1-18 ◽  
Author(s):  
N. Zulfareen ◽  
T. Venugopal ◽  
K. Kannan

The corrosion inhibition effect of N-(4-((4-Benzhydryl piperazin-1-yl) methyl Carbamoyl) Phenyl) Furan-2-Carboxamide (BFC) on brass in 1M HCl has been investigated using weight loss method, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV). The result reveals that BFC acts as a mixed type corrosion inhibitor with more pronounced effect on anodic domain and the inhibition efficiency of BFC increases with increase in temperature ranges from 30°C to 60°C. AC impedance implies thatRctvalue of BFC increases with increase in concentration. CV indicates that the addition of inhibitor controls the oxidation of the copper on the brass metal. The structural confirmation of BFC was carried out by the spectral studies like FT-IR,1H NMR,13C NMR, and the molecular weight was confirmed by LC-MS. Surface characterization of brass with BFC was analysed using scanning electron microscope (SEM). Quantum chemical parameter was used to calculate the electronic properties of BFC in order to confirm the correlation between the inhibitor effect and molecular structure of BFC. BFC has more negative charge on nitrogen and oxygen atom, which facilitates the adsorption of BFC on the surface of brass.


2020 ◽  
Vol 11 (1) ◽  
pp. 8402-8412

The present study deals with the synthesis of Cr2O3nanoparticles (NPs) using Cannabis sativa leaves extract and to assess anti biochemical cancer and corrosion inhibitory activity. The formation of nanoparticles was established by spectrophotometer (UV-vis) at a wavelength of 425 nm while it was kept for one month at room temperature for stability checking. Dynamic Light Scattering analysis revealed the formation of stable Cr2O3 NPs measuring 85-90 nm in diameter. Furthermore, Cr2O3 NPs and Cannabis sativa leaves extract were checked for anti-cancer activity in HepG2 cell lines. The recorded percent cell viability of HepG2 was 64.10 at a minimum concentration (0.01 ppm), whereas at a maximum concentration (10 ppm) it was reduced to 47.25 % after 12 hrs. Further, at 24 hrs, it was reduced up to 21 % and 34.45 % at a minimum and maximum concentrations, respectively. Hence, green synthesized Cr2O3 NPs possessed promising anti-cancer activity. Loss in weight method is used to evaluate the corrosion inhibition activity on mild steel in 0.5 M HCl, HNO3, and NH3 solutions. The value of IE also increases with increasing the concentration of Cr2O3 NPs. It is clear that in basic (NH3) medium, Cr2O3 NPs show the highest inhibition performance of about 89%, and in an acidic medium, it was80%at 1.0 g/l concentration. The concentration of Cr2O3 NPs increases with a decrease in the rate of corrosion, which confirmed an increase in the efficiency of inhibition.


2006 ◽  
Vol 2 (2) ◽  
pp. 82-90
Author(s):  
Petchiammal A.p ◽  
P.Deepa Rani ◽  
S.Seetha Laks ◽  
S. Selvaraj

The inhibition effect of Cassia alata leaves extract on corrosion of mild steel in 1N HCl was investigated through mass loss measurements with various time and temperature. The observed result indicated that the corrosion inhibition efficiency and degree of surface coverage were increased with increase of inhibitor concentration and temperature. The thermodynamic parameters (Ea, ∆Hads, ∆Gads, ∆Sads) were evaluated for corrosion inhibition process which suggests that the adsorption is endothermic, spontaneous and chemisorptions and also the inhibitor follows Langmuir adsorption isotherm. The protective film formed on metal surface was analyzed using spectroscopic studies viz, UV, FT-IR and EDX techniques.


2014 ◽  
Vol 976 ◽  
pp. 64-69
Author(s):  
Liliana Hernández Perales ◽  
Christiaan Jardínez ◽  
Rosa Angeles Vázquez García ◽  
Oscar Coreño Alonso ◽  
M. Aurora Veloz Rodríguez ◽  
...  

In this work, we report the conventional and mechanochemical synthesis of the a-diimine derivate of 2, 3-butanedione and the primary amine 2-aminoethanethiol designated DD-DC and DD-DC/MS respectively. The products were characterized by 1H and 13C-NMR, FT-IR, MS-EI and elemental analysis. The products were also electrochemically evaluated by potentiodynamic polarization technique in order to measure their corrosion inhibition efficiency on AISI 1018 steel, immersed in a corrosive solution type NACE TM 0177. The results indicate that the compound obtained under mechanosyntesis conditions, DD-DC/MS, presents better inhibitory properties with 53% efficiency at 10 ppm concentration. On the other hand, the compound obtained by conventional synthesis (DD-DC) presented efficiency of 29% at 10 ppm concentration. Also, the DFT results show that a-diimine derivatives possesses corrosion inhibition properties, consisting of the transfer of high-charge density which in the delocalization region (N=C–C=N) is formed by p (C=N) and SH, these moiety play an important role, because their electron lone pairs help to form a protective coating to form an adsorption layer. The results showed that cysteamine compound turns out to be a good corrosion inhibitor for the steel iron surface in an acid medium forming an adsorption film over metallic surface.


2018 ◽  
Vol 6 (2) ◽  
pp. 157
Author(s):  
Jisha M ◽  
Zeinul Hukuman N. H ◽  
Leena P

Pogostemon quadrifolius methanolic stem extract (PQMSE) has been investigated as non toxic green corrosion inhibitor for mild steel in 1 M HCl. Corrosion rates were evaluated at 303 K, 313 K and 323 K by weight loss method at varying inhibitor concentrations. Using electrochemical impedence spectroscopy (EIS) and polarisation techniques, corrosion studies were done at 303 K in various inhibitor concentrations. Adsorption studies were also conducted to study the mechanism of corrosion inhibition. Scanning electron microscopy (SEM) and Fourier – transform infrared (FT-IR) spectroscopy were used to study the surface morphology of mild steel. Electrochemical studies reveal that PQMSE exhibit excellent corrosion inhibition efficiency and it function as a mixed type of inhibitor at 303 K. The surface interaction of PQMSE on mild steel in 1 M HCl was obeying Langmiur adsorption isotherm at all studied temperatures.


2017 ◽  
Vol 12 (2) ◽  
pp. 20 ◽  
Author(s):  
Dhineshkumar Manoharan ◽  
Kannan Kulanthai ◽  
Gnanavel Sadhasivam ◽  
Vijayan Raji ◽  
Paalvannan Thayumanavan

<p class="Abstract">Series of indoline derivatives were synthesized using N-(4-aminophenyl)indoline-1-carbothiamide as a precursor. The confirmation of synthesized compounds was done by <sup>1</sup>H-NMR, <sup>13</sup>C-NMR, LC-MS (ESI) and FT-IR. In vitro antidiabetic activity of synthesized indoline derivatives were examined by standard α-amylase inhibition assay. The compounds 4a (IC<sub>50 </sub>= 52.1 µg/mL) and 4b (IC<sub>50 </sub>= 57.7 µg/mL) showed potent α-amylase inhibition activity. The compounds 3a (IC<sub>50 </sub>= 62.2 µg/mL) and 3b (IC<sub>50 </sub>= 60.7 µg/mL) showed moderate antidiabetic activity.</p><p class="Abstract"><strong>Video Clip of Methodology</strong>:</p><p class="Abstract">19 min 21 sec   <a href="https://www.youtube.com/v/k5WdfpM-E8U">Full Screen</a>   <a href="https://www.youtube.com/watch?v=k5WdfpM-E8U">Alternate</a></p>


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