Study on pitting process of 316L stainless steel by means of staircase potential electrochemical impedance spectroscopy

Jia, Zhijun; Du, Cuiwei; Li, Chengtao; Yi, Zou; Li, Yong

doi:10.1007/s12613-011-0398-9

Cited by 23 publications

(10 citation statements)

References 15 publications

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“…[41] EIS at different potentials has been used to study the kinetic reactions in analytical electrochemistry for the non-stationary interfaces with faradaic process and in corrosion process. [42,43] It was also used to show EET between Shewanella oneidensis biofilms and semiconductor iron oxide substrate. [44] The experiment was set for EIS characterization in the potential range between À 200 and 400 mV vs. Ag/AgCl with 50 mV steps.…”

Section: Resultsmentioning

confidence: 99%

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Electrochemical Signature of Escherichia coli on Nickel Micropillar Array Electrode for Early Biofilm Characterization

Astorga

Marsili

et al. 2019

ChemElectroChem

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Biofilms are sessile microbial communities living at interfaces, in which the extracellular matrix is responsible for the mechanical stability and adhesion to surfaces. Transition from planktonic to attached cells is a key step in the biofilm formation process. Monitoring of this transition is needed to prevent contamination of biomedical devices and mitigate microbially influenced corrosion. Under anoxic local conditions and in the presence of an exogenous redox mediator, biofilms can divert part of the electron flow associated with catabolism to electrodes maintained at a defined potential. Extracellular electron transfer (EET) follows upon the attachment of planktonic cells to the surface. Modification of the electrode increases bacterial attachment, thus allowing early bioelectrochemical detection of the biofilm. Here, we report a Ni electrode micropillar array to detect early attachment of Escherichia coli biofilm through mediated EET in potentiostat‐controlled electrochemical cells. The biofilm‐surface interaction is studied by using electrochemical impedance spectroscopy (EIS) at different potentials and temperatures over 24 h. The analysis of the EIS signature highlights the effect of temperature on mediated EET in biofilms. These results demonstrate that micropillared electrodes allow earlier biofilm detection than flat electrodes, which is relevant to biofilm sensing and investigation of microbially influenced corrosion in drinking water systems and biomedical devices.

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Section: Resultsmentioning

confidence: 99%

“…EIS at different potentials has been used to study the kinetic reactions in analytical electrochemistry for the non‐stationary interfaces with faradaic process and in corrosion process . It was also used to show EET between Shewanella oneidensis biofilms and semiconductor iron oxide substrate .…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Signature of Escherichia coli on Nickel Micropillar Array Electrode for Early Biofilm Characterization

Astorga

Marsili

et al. 2019

ChemElectroChem

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“…Research objects include a large number of randomly generated corrosion pits, and passive films on a whole electrode. Experimental methods include potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), potentiodynamic electrochemical impedance spectroscopy (DEIS), and electrochemical noise (EN) [1,[10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effects of applied potential on stable pitting of 304 stainless steel

Tian

et al. 2015

Corrosion Science

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“…Films. Electrochemical impedance spectroscopy (EIS) is an important technique to investigate the protective character of passive films against corrosion [25,26]. Figure 2 displays the Nyquist plots of the passive films in 3.5 wt.% NaCl solution, and the passive oxide films were grown on X70, X80, and X100 pipeline steels at +0.7 V in 0.5 mol/L NaHCO 3 solution for 1 h to promote the passive film growth.…”

Section: Electrochemical Impedance Measurements Of the Passivementioning

confidence: 99%

The Pitting Susceptibility Investigation of Passive Films Formed on X70, X80, and X100 Pipeline Steels by Electrochemical Noise and Mott-Schottky Measurements

Zhang

Liang

Shi

et al. 2015

International Journal of Corrosion

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The pitting susceptibility of passive films formed on X70, X80, and X100 pipeline steels was investigated by means of electrochemical noise (EN) and Mott-Schottky measurements. The EN results were analyzed according to the shot-noise theory and stochastic theory. Pit initiation process was analyzed quantitatively using the Weibull distribution function. Pit growth process was simulated by Gumbel distribution function. The experimental results of Mott-Schottky plots showed that the passive films formed on the three pipeline steels displayed an n-type semiconductor character, and the passive film for X100 pipeline steel has the lowest donor density (ND) among the three passive films. The EN results demonstrated that X100 pipeline steel had the lowest pit initiation rate and pit growth probability, which implied that the X100 pipeline steel had the lowest pitting susceptibility.

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Study on pitting process of 316L stainless steel by means of staircase potential electrochemical impedance spectroscopy

Cited by 23 publications

References 15 publications

Electrochemical Signature of Escherichia coli on Nickel Micropillar Array Electrode for Early Biofilm Characterization

Electrochemical Signature of Escherichia coli on Nickel Micropillar Array Electrode for Early Biofilm Characterization

Effects of applied potential on stable pitting of 304 stainless steel

The Pitting Susceptibility Investigation of Passive Films Formed on X70, X80, and X100 Pipeline Steels by Electrochemical Noise and Mott-Schottky Measurements

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