Fabrication of Poly(o/m-Toluidine)–SiC/Zinc Bilayer Coatings and Evaluation of Their Corrosion Resistances

Hu, Chuanbo; Liu, Ying; Zhang, Jiawei; Huang, Wenlong

doi:10.3390/coatings8050180

Cited by 5 publications

(3 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A topcoat of POT performed better than poly-m-toluidine, but poly-o-ethylaniline protected even significantly better. This finding has been confirmed in a similar study by these authors [128].…”

Section: Application As Coating For Corrosion Protectionsupporting

confidence: 87%

o-Toluidine in electrochemistry – an overview

Weber

Richter

Holze

2022

J Solid State Electrochem

View full text Add to dashboard Cite

The substituted aromatic amine o-toluidine (2-methylaniline, 1-amino-2-methylbenzene) is frequently encountered in electrochemical research as a soluble corrosion inhibitor dissolved in aqueous media used e.g., in cooling systems, as a homomonomer for formation of intrinsically conducting poly-o-toluidine and as a comonomer in formation of respective copolymers and their composites. The obtained polymers are suggested as corrosion protection coatings, as active materials in devices for electrochemical energy storage, but more frequently, they are examined as active components in electrochemical sensors.The significant and pronounced carcinogenicity of o-toluidine has hardly been addressed; presumably, most researchers are not even aware of this property. After a brief summary of the health risks and effects, the following overview presents typical examples of said studies and applications. If possible, substitutes with lower health risks are proposed, at least further studies enabling such replacement are suggested.

show abstract

Section: Application As Coating For Corrosion Protectionsupporting

confidence: 87%

o-Toluidine in electrochemistry – an overview

Weber

Richter

Holze

2022

J Solid State Electrochem

View full text Add to dashboard Cite

show abstract

“…AFM analysis was also performed to study the thin films morphology, roughness of the films. The FTIR transmission spectra of POT-CSA is shown in Figure . 3 the strong bands at 1438 cm -1 1584 cm -1 , relate with the stretching-vibration of the benzenoid and quinoid ring, respectively [6,10], The peak at 3729 cm −1 is attributed to O-H stretching, The peak at 3365 cm −1 is endorsed to N-H stretching which proposes the existence of -NH-groups in units of OT [11]. The peak at 1136 cm −1 is caused by C-H.…”

Section: Structural and Morphological Characterizationmentioning

confidence: 96%

The Role of Formic Acid as Secondary Dopant and Solvent for Poly(O-Toluidine) Intrinsically Doped with Camphor Sulfonic Acid

Mohammed¹,

Ziadan²,

Al-Kabbi³

et al. 2021

MSF

View full text Add to dashboard Cite

The role of formic acid as Secondary Dopant for Poly (O-toluidine) Intrinsically Doped with Camphor Sulfonic-Acid (POT-CSA) nanoparticles were prepared by chemical polymerization had been studied. Spin coating and casting method have been used to deposit good adhesion and uniform thin films of (POT-CSA) on a glass substrates at room temperature. the properties of (POT-CSA) nanoparticles which examined by FTIR, SEM, AFM, XRD, I-V characteristics and UV-VIS. FTIR studies show the several bending and stretching modes of POT. XRD examination demonstrated that NPS. has a semi-crystalline pattern . The synthesized film well covered by the nanoparticles over the entire substrate surface, exhibits uniform, porous, and spherical granular surface morphology, A narrow size distribution is observed and the average size of particles about 80 nm. The band gap (Eg) has been determined which is equal to 3.1 ev. The room temperature conductivity of POT-CSA was 3 * 10-1 S.cm-1,which increases with increasing temperature. Electrical conductivity enhances up to three order after the secondary doping process. Keywords: POT-Chemical polymerization-Conducting polymer-SEM-AFM

show abstract

“…For both PDP and EIS tests, the engaged area of the working electrode was 0.785 cm 2 . Finally, the impedance data were analyzed using the Zview2 software [40].…”

Section: Corrosion Resistance Measurementmentioning

confidence: 99%

Detection and Analysis of Corrosion and Contact Resistance Faults of TiN and CrN Coatings on 410 Stainless Steel as Bipolar Plates in PEM Fuel Cells

Forouzanmehr

Kashyzadeh

Borjali

et al. 2022

Sensors

View full text Add to dashboard Cite

Bipolar Plates (BPPs) are the most crucial component of the Polymer Electrolyte Membrane (PEM) fuel cell system. To improve fuel cell stack performance and lifetime, corrosion resistance and Interfacial Contact Resistance (ICR) enhancement are two essential factors for metallic BPPs. One of the most effective methods to achieve this purpose is adding a thin solid film of conductive coating on the surfaces of these plates. In the present study, 410 Stainless Steel (SS) was selected as a metallic bipolar plate. The coating process was performed using titanium nitride and chromium nitride by the Cathodic Arc Evaporation (CAE) method. The main focus of this study was to select the best coating among CrN and TiN on the proposed alloy as a substrate of PEM fuel cells through the comparison technique with simultaneous consideration of corrosion resistance and ICR value. After verifying the TiN and CrN coating compound, the electrochemical assessment was conducted by the potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) tests. The results of PDP show that all coated samples have an increase in the polarization resistance (Rp) values (ranging from 410.2 to 690.6 Ω·cm2) compared to substrate 410 SS (230.1 Ω·cm2). Corrosion rate values for bare 410 SS, CrN, and TiN coatings were measured as 0.096, 0.032, and 0.060 mpy, respectively. Facilities for X-ray Diffraction (XRD), Scanning Electron Microscope (FE-SEM, TeScan-Mira III model and made in the Czech Republic), and Energy Dispersive X-ray Spectroscopy (EDXS) were utilized to perform phase, corrosion behavior, and microstructure analysis. Furthermore, ICR tests were performed on both coated and uncoated specimens. However, the ICR of the coated samples increased slightly compared to uncoated samples. Finally, according to corrosion performance results and ICR values, it can be concluded that the CrN layer is a suitable choice for deposition on 410 SS with the aim of being used in a BPP fuel cell system.

show abstract

Fabrication of Poly(o/m-Toluidine)–SiC/Zinc Bilayer Coatings and Evaluation of Their Corrosion Resistances

Cited by 5 publications

References 46 publications

o-Toluidine in electrochemistry – an overview

o-Toluidine in electrochemistry – an overview

The Role of Formic Acid as Secondary Dopant and Solvent for Poly(O-Toluidine) Intrinsically Doped with Camphor Sulfonic Acid

Detection and Analysis of Corrosion and Contact Resistance Faults of TiN and CrN Coatings on 410 Stainless Steel as Bipolar Plates in PEM Fuel Cells

Contact Info

Product

Resources

About