Influence of Benzotriazole on Corrosion Inhibition of Mild Steel in Citric Acid Medium

Matheswaran, P.; Ramasamy, A. K.

doi:10.1155/2010/598025

Cited by 30 publications

(18 citation statements)

References 5 publications

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“…As can be seen from curves (b)-(d), with the increase in the BTA concentration, when the applied potential is in the range of E corr +100 mV and ∼0.7 V (vs. E Ag/AgCl ), the anodic current density gradually decreases, which indicates that, under this condition, BTA can form a passivating layer on the top surface and thereby can inhibit the oxidation. [38][39][40][41]43 The XPS N(1s) spectra of the 316L stainless steel surface after being polished with the slurries containing different concentrations of BTA are shown in Fig. 12.…”

Section: Resultsmentioning

confidence: 99%

Chemical Mechanical Polishing of Stainless Steel as Solar Cell Substrate

Jiang

Yang

2015

ECS J. Solid State Sci. Technol.

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Recently, stainless steel has been widely used as the solar cell substrate. In this paper, chemical mechanical polishing technique was employed to prepare the ultra-smooth 316L stainless steel surface for such application. The effects of solid content, pH, H 2 O 2 and benzotriazole (BTA) on the polishing performance of 316L stainless steel were investigated. The results indicated that, at pH 4.00, with the increase in the H 2 O 2 concentration, the MRR first dramatically increases due to the fact that, with the addition of small amount of H 2 O 2 , a porous outer layer mainly consisting of iron-enriched oxides with relatively low mechanical strength of the bilayer-structure oxide film is rapidly formed on the surface. After reaching the maximum value, the MRR gradually decreases since the outer layer gradually grows compact by the transformation of γ-FeOOH into α-FeOOH and even into α-Fe 2 O 3 . With the addition of BTA, the MRR can be suppressed, which is probably attributed to the formation of BTA passivating film on the top surface. Finally, a two-step polishing method was proposed, by which the ultra-smooth 316L stainless steel surface with the surface roughness R a about 2.0 nm can be achieved within 30 min and it can be subsequently used for thin-film solar cells. Stainless steel plays an important role in the mechanical industry due to the excellent mechanical properties, the high thermostability and the strong corrosion resistance. Recently, various types of stainless steels have been intensively used in precise devices, 1-4 especially been used as the substrate for thin-film solar cells. [5][6][7][8][9][10] In order to achieve satisfactory performance of solar cells, low roughness, low defects as well as excellent flatness of the stainless steel substrate are intensively demanded and even indispensable. It is reported that, by improving the surface roughness of stainless steel substrate from 38 nm to 23 nm, the conversion efficiency of hydrogenated amorphous silicon thin-film solar cells can greatly increase to 5.4%. 10 As is revealed, chemical mechanical polishing (CMP) combines the synergetic effects of chemical corrosion and mechanical abrasion, and can achieve both local and global planarization of the substrate surface. 11-14Hu et al.2 used colloidal silica as the abrasive and investigated the effects of pH and oxidizer on the polishing performance of stainless steel, and it was reported that the combination of oxidizer and strong acidity was the prerequisite for high material removal rate (MRR). However, the microscopic defects of 1-2 μm in size cannot be effectively avoided on the polished surface. Lee et al.10 used electrochemical mechanical polishing technique, which applied an additional anodic potential on the stainless steel substrate besides CMP, to polish the stainless steel surface, and it was reported that the polished surface roughness was reduced from about 38 nm to about 23 nm. However, more detailed polishing performance and the mechanism of chemical reactions during the polishing pr...

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Section: Resultsmentioning

confidence: 99%

Chemical Mechanical Polishing of Stainless Steel as Solar Cell Substrate

Jiang

Yang

2015

ECS J. Solid State Sci. Technol.

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“…The solutions of other organic acids (adipic, maleic, oxalic, succinic) are less effective in thermal power equipment cleaning than citric acid solutions. Mixtures containing pyridine toxic derivatives -Сatapin K and the inhibitor I-1-A [1], benzotriazol [4], cinnamic aldehyde [5] and various vegetal extracts [6][7][8] are recommended as additives to inhibit the corrosion of steels in citric acid solutions. In this case, benzotriazol, cinnamic aldehyde and vegetal extracts do not allow obtaining the metal protection degree of Z !…”

Section: Introductionmentioning

confidence: 99%

Inhibitive Protection of Low-Carbon Steel in Citric Acid Solutions

et al. 2017

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An effective mixture has been developed on the basis of the inhibitor IFKhAN-92 and KCNS to protect low-carbon steel in citric acid hot solutions. The proposed mixture inhibits the corrosion of steel in these solutions in a wide range of their concentrations (0.25y2.0 М) and temperatures (20y95qС). The effective inhibition of the corrosion of steel by the mixture under study is due to the strong retardation of the metal's both electrode reactions.

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“…Several researchers have devoted their attention to develop more effective and non-toxic inhibitors of iron. The use of inhibitors like organic inhibitor is one of the most practical methods for the protection of mild steel against corrosion especially in acidic medium [4][5][6][7][8][9] . Numbers of organic compounds have been studied in detail as the corrosion inhibitors to reduce both acid attack and protection aspects in mild steel.…”

Section: Introductionmentioning

confidence: 99%

Effect Formazan of Benzaldehyde as Corrosion Inhibitor on Preventing the Mild Steel Corrosion in Acidic Medium

2013

Chem Sci Trans

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Abstract:The effect of formazan of benzaldehyde (FB) on the corrosion of mild steel in acidic media (1 M HCl and 2 M HCl) has been investigated using weight loss measurements, electrochemical studies and surface analysis. These studies have also shown that formazan of benzaldehyde is a good inhibitor for mild steel in 1 M HCl and 2 M HCl acid solutions at room temperature in 2 h. In 1 M HCl the inhibition efficiency was high when compared to 2 M HCl acid solutions. The surface analysis also confirms the corrosion inhibition of the mild steel by the inhibitor (FB).

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Influence of Benzotriazole on Corrosion Inhibition of Mild Steel in Citric Acid Medium

Cited by 30 publications

References 5 publications

Chemical Mechanical Polishing of Stainless Steel as Solar Cell Substrate

Chemical Mechanical Polishing of Stainless Steel as Solar Cell Substrate

Inhibitive Protection of Low-Carbon Steel in Citric Acid Solutions

Effect Formazan of Benzaldehyde as Corrosion Inhibitor on Preventing the Mild Steel Corrosion in Acidic Medium

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