Evaluation of physical and chemical adsorption using electrochemical noise technique for methylene blue on mild steel

Chen, Y.; Chen, X.H.; Liu, Y.W.; Yang, Zhongnian; Zhang, Z.

doi:10.1016/j.jct.2018.07.003

Cited by 18 publications

(3 citation statements)

References 68 publications

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“…Comparing with i corr of N80 steel in 0.5 M HCl solution without PPAPO, the i corr decreased markedly in the presence of PPAPO. That may because the adsorption of PPAPO on carbon steel surface prevents the anodic metal dissolution and cathodic hydrogen evolution and then decreases the metal surface activation points [15]. The adsorption of inhibitor molecules may include physical and chemical adsorption and generate an energy barrier to block electron transfer.…”

Section: Potentiodynamic Polarization Curvementioning

confidence: 99%

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na ₂ WO ₄ on N80 steel

Wang

Zhang

et al. 2020

R. Soc. open sci.

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The corrosion inhibition effect and adsorption behaviour of 1-phenyl-3-(phenylamino)propan-1-one (PPAPO) on N80 steel in hydrochloric acid solution have been investigated by Fourier transform infrared (FTIR), electrochemical method and scanning electron microscopy. The corrosion inhibition mechanism of PPAPO mixed with Na 2 WO 4 was interpreted from the thermodynamic point of view. The results indicated that PPAPO mixed with Na 2 WO 4 acted as a mixed-type inhibitor. The inhibition film formed on N80 steel surface can increase the charge transfer resistance and prevent the occurrence of corrosion reaction, thereby reducing the corrosion rate of metal surface. The inhibition efficiency was up to 96.65%; the inhibitor PPAPO with Na 2 WO 4 showed good synergistic effect on N80 corrosion behaviour in HCl solution. The adsorption behaviour of inhibitors on N80 steel surface was in accordance with the Langmuir adsorption model and mainly belonged to chemisorption. The adsorption process of PPAPO on N80 surface was spontaneous and irreversible endothermic reaction.

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Section: Potentiodynamic Polarization Curvementioning

confidence: 99%

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na ₂ WO ₄ on N80 steel

Wang

Zhang

et al. 2020

R. Soc. open sci.

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“…metastable pitting) [43]. The RP-EDP plot can be divided into three types according to previous studies [44][45][46]: (1) Region A between D 1 and D 3 in the high frequency domain represents a reasonably fast phenomenon, such as metastable pitting and nucleation process, (2) Region B between D 3 and D 6 corresponds to the pitting development or nucleus growth process, and (3) Region C between D 6 and D 8 at a relatively lower frequency range mainly characterizes a slow process, such as adsorption or diffusion process.…”

Section: Resultsmentioning

confidence: 99%

Corrosion inhibition by a superhydrophobic surface on aluminum that was prepared with a facile electrochemical route

Chen

2020

Mater. Res. Express

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A superhydrophobic surface featuring high roughness and low surface energy is designed for effective corrosion protection on aluminum via a facile and cost-effective electrochemical route. The effects of the electrolyte composition and electrodeposition time on the surface wettability were investigated. Moreover, the corrosion resistance performance of the as-prepared superhydrophobic aluminum surface was studied using electrochemical impedance spectroscopy and electrochemical noise techniques. The results show that the superhydrophobic aluminum surface obtained at 2 V for 20 min has a high static water contact angle of 155.8°. Both the average corrosion rate and pitting intensity are remarkably inhibited by the as-prepared superhydrophobic surface on aluminum. Moreover, the static water contact angle for the obtained superhydrophobic surface remains above 150°after exposure to 3.5 wt% NaCl solution for 30 days. This facile and economical superhydrophobic surface, with its excellent anti-corrosion property and stability, shows significant potential for use in industrial applications.

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“…The non-linearized kinetics of the adsorption was studied by analyzing the adsorption capacity of Acid Blue 93 onto DEC, HEC and OEC at different time intervals. The adsorption kinetics of the Pseudo-first-order, Pseudo-second-order and Elovich models are given in Table 1 [21].…”

Section: Adsorption Kinetics and Isotherms Analysismentioning

confidence: 99%

Insight into the removal of Acid Blue 93 by cationic Eucalyptus cellulose with different alkyl chain lengths: properties and mechanisms

Yan¹

2019

DWT

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Cationized Eucalyptus wood chips cellulose (DEC, HEC and OEC) were prepared via grafting with a quaternary ammonium group using N,N-dimethyl-1-dodecylamine, N,N-dimethyl-1-hexadecylamine or N,N-dimethyl-1-octadecylamine as modification agents onto Eucalyptus wood chips cellulose (EC) microstructure. The characterization results showed that the molecular structure and morphology of EC changed with the quaternary ammonium group being successfully grafted onto the EC molecular structure. DEC, HEC and OEC with the same degree of substitution were selected as adsorbents for the adsorption of Acid Blue 93 dye to evaluate the dye adsorption performance and mechanism of cationized cellulose with different molecular structures. The adsorption process was well-described by pseudo-second-order and Langmuir models. We found that the adsorption capacity increased with the increasing length of the alkyl chain of the DEC, HEC and OEC. The adsorbents exhibited high reusability and high adsorption performance for dye removal. Thermodynamic parameters indicated that the adsorption process is a spontaneous and feasible process, and that increasing the temperature is conducive to the adsorption process.

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Evaluation of physical and chemical adsorption using electrochemical noise technique for methylene blue on mild steel

Cited by 18 publications

References 68 publications

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na ₂ WO ₄ on N80 steel

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na ₂ WO ₄ on N80 steel

Corrosion inhibition by a superhydrophobic surface on aluminum that was prepared with a facile electrochemical route

Insight into the removal of Acid Blue 93 by cationic Eucalyptus cellulose with different alkyl chain lengths: properties and mechanisms

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Evaluation of physical and chemical adsorption using electrochemical noise technique for methylene blue on mild steel

Cited by 18 publications

References 68 publications

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na 2 WO 4 on N80 steel

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na 2 WO 4 on N80 steel

Corrosion inhibition by a superhydrophobic surface on aluminum that was prepared with a facile electrochemical route

Insight into the removal of Acid Blue 93 by cationic Eucalyptus cellulose with different alkyl chain lengths: properties and mechanisms

Contact Info

Product

Resources

About

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na ₂ WO ₄ on N80 steel

Electrochemical and thermodynamic properties of 1-phenyl-3-(phenylamino)propan-1-one with Na ₂ WO ₄ on N80 steel