2020
DOI: 10.1007/s12209-020-00238-8
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Enhancing the Stability of Passive Film on 304 SS by Chemical Modification in Alkaline Phosphate–Molybdate Solutions

Abstract: The purpose of this work was to enhance the corrosion resistance of the passive film on 304 stainless steel (SS) by chemical modification in alkaline phosphate-molybdate solutions. The 304 SS was passivated in both phosphate and phosphate-molybdate mixed solutions to investigate the effect of molybdate on its corrosion resistance. The experimental results indicated that the passive film showed better corrosion resistance in Cl −-containing solutions after modification in phosphate-molybdate solutions than in p… Show more

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Cited by 35 publications
(10 citation statements)
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(39 reference statements)
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“…The as-synthesized MnO x catalysts were evaluated for NRR in 0.1 M Na 2 SO 4 solution under room temperature and atmospheric pressure using a two-compartment electrochemical cell, which was separated by a proton-exchange membrane. Neutral electrolytes were applied to avoid the corrosion problems that occur in acidic and alkaline solutions . Before electrochemical tests, the N 2 feed gas was pretreated to remove possible NH 3 , labile nitric oxides, nitrates, and nitrites.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The as-synthesized MnO x catalysts were evaluated for NRR in 0.1 M Na 2 SO 4 solution under room temperature and atmospheric pressure using a two-compartment electrochemical cell, which was separated by a proton-exchange membrane. Neutral electrolytes were applied to avoid the corrosion problems that occur in acidic and alkaline solutions . Before electrochemical tests, the N 2 feed gas was pretreated to remove possible NH 3 , labile nitric oxides, nitrates, and nitrites.…”
Section: Resultsmentioning
confidence: 99%
“…Neutral electrolytes were applied to avoid the corrosion problems that occur in acidic and alkaline solutions. 24 Before electrochemical tests, the N 2 feed gas was pretreated to remove possible NH 3 , labile nitric oxides, nitrates, and nitrites. It was ensured that negligible amounts of NO 3 − and NO 2 − were present in the N 2 -saturated solutions (Figures S3 and S4).…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…Such observation has also been reported in case of the chemically modified stainless steel. [57] Fig . 8-The variation in coefficient of friction with sliding distance attributed to the wear tests of (a) bare Al, and samples that were anodized in 5 vol pct H 2 SO 4 baths including (b) 0 g/L, (c) 2 g/L, (d) 5 g/L, and (e) 10 g/L eggshell particles.…”
Section: Corrosion Test Resultsmentioning
confidence: 99%
“…The shape of impedance spectra obtained in different electrolyte solutions (containing different concentrations of corrosion inhibitor and blank) are the same, which suggests that the corrosion mechanism of mild steel has not changed, and the radius of capacitive loops increases significantly after increasing the corrosion inhibitor concentration. The behavior of the impedance can be illustrated by adapting an electrochemical equivalent circuit (Figure 3) including a solution resistance (R s ), constant phase element (CPE), and the charge transfer resistance (R ct ) (Pan et al, 2020). The electrochemical parameters are listed in Table 3.…”
Section: Eis Measurementsmentioning
confidence: 99%