Evaluation of electrochemical properties for CrMoV steel in acidic solutions to determine embrittlement—I. Open circuit potential measurements in acidic aqueous solutions of various organic compounds

1988 ◽  
Vol 33 (10) ◽  
pp. 1383-1389 ◽  
Author(s):  
Noriko Sato ◽  
Masayuki Suzuki
Keyword(s):  
Aqueous Solutions ◽  
Electrochemical Properties ◽  
Organic Compounds ◽  
Open Circuit Potential ◽  
Open Circuit ◽  
Acidic Solutions

scholarly journals Activated Carbon Open Circuit Potential Shifts in Aqueous Solutions

2019 ◽  
Vol 11 (20) ◽  
pp. 19-28 ◽  
Author(s):  
Mikhail M. Goldin ◽  
Gary J. Blanchard ◽  
Alexander G. Volkov ◽  
Mogely S. Khubutiya ◽  
Vladimir A. Kolesnikov ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Open Circuit Potential ◽  
Open Circuit ◽  
Potential Shifts

Effects of Solid Solution Treatment and Rolling Treatment on Electrochemical Properties of Al Anode Alloy

2013 ◽  
Vol 800 ◽  
pp. 492-495
Author(s):  
Deng Hui Li ◽  
Jiu Ba Wen ◽  
Jun Guang He
Keyword(s):  
Solid Solution ◽  
Corrosion Resistance ◽  
Electrochemical Properties ◽  
Hydrogen Evolution ◽  
Open Circuit Potential ◽  
Cast Alloy ◽  
Solution Treatment ◽  
Open Circuit ◽  
Electrochemical Measurements ◽  
Solid Solution Treatment

Effects of solid solution treatment and rolling treatment on microstructure and electrochemical properties of Al-Ga-Mg-Mn-Bi anode alloy were investigated by means of SEM and electrochemical measurements. The results show that after solid solution treatment the microstructure segregation of the as-cast alloy was reduced, the hydrogen evolution was restrained, the corrosion resistance was increased. The open circuit potential moves towards negative after solid solution treatment. Rolling treatment had little impact on the alloy. The effects of solid solution treatment were superior to rolling treatment.

Inspection of White Layer in Hard Turned Components Using Electrochemical Methods

2006 ◽  
Vol 129 (2) ◽  
pp. 447-452 ◽  
Author(s):  
Ian S. Harrison ◽  
Thomas R. Kurfess ◽  
Edward J. Oles ◽  
Preet M. Singh
Keyword(s):  
Electrochemical Properties ◽  
Open Circuit Potential ◽  
Electrochemical Impedance ◽  
White Layer ◽  
Open Circuit ◽  
Machined Surface ◽  
Electrochemical Tests ◽  
Naoh Solution ◽  
Surface Measurements ◽  
Insight Into

This paper presents the results of electrochemical tests on hard turned steel components that have white layer on the surface. Electrochemical impedance spectroscopy is used to compare a machined surface with white layer against a machined surface without white layer, an annealed surface, and an electrical discharge machined surface. Measurements of the steady-state open-circuit potential are also used for comparison. The results show that the electrochemical properties of a surface with white layer are distinct from a surface without white layer. Specifically, a surface with white layer is more anodic and has lower electrochemical impedance than a surface without white layer in a NaOH solution. These results provide insight into the electrochemical properties of white layer and indicate that surfaces with white layer may corrode more quickly in service.

scholarly journals Solvent dielectric effect on electrochemical properties of 3,4-propylenedioxythiophene

2021 ◽  
Author(s):  
Keziban Huner ◽  
Abdulkadir Sezai Sarac
Keyword(s):  
Dielectric Constant ◽  
Electrochemical Properties ◽  
Open Circuit Potential ◽  
Electrochemical Impedance ◽  
Open Circuit ◽  
Dielectric Constants ◽  
Solvent Mixtures ◽  
Carbon Fiber Microelectrode ◽  
Dielectric Effect ◽  
Constant E

The present study is focused on the electrochemical properties of poly(3,4-propylene­dioxy­thiophene) (Poly(ProDOT)), electrocoated on the single carbon-fiber microelectrode (SCFME) in different electrolytic media, with different solvent dielectric constants (35.9, 41.7, 47.5, 53.3, 59.1 and 64.9). The highest deposition charge density of 24.49 mC cm-2 and the highest specific capacitance of 23.17 mF cm-2 were obtained for Poly(ProDOT) synthesized in a medium with the lowest solvent dielectric constant (e = 35.9). Electrochemical impedance spectroscopy (EIS) results of Poly(ProDOT) coated SCFME measured at open circuit potential showed continuously increased impedance magnitudes as ε was increased from 35.9 to 59.1. For all films, almost capacitive impedance responses at lower frequencies at least were obtained. The highest capacitance was observed for the polymer film synthesized in the medium of e = 35.9. The impedance of this film was also measured in different solvent mixtures with different dielectric constants at open circuit potential.

Electrochemical properties of protic ionic liquids: correlation between open circuit potential for H2/O2 cells under non-humidified conditions and ΔpKa

RSC Advances ◽  
2013 ◽  
Vol 3 (13) ◽  
pp. 4141 ◽  
Author(s):  
Muhammed Shah Miran ◽  
Tomohiro Yasuda ◽  
Md. Abu Bin Hasan Susan ◽  
Kaoru Dokko ◽  
Masayoshi Watanabe
Keyword(s):  
Ionic Liquids ◽  
Electrochemical Properties ◽  
Open Circuit Potential ◽  
Open Circuit ◽  
Protic Ionic Liquids

scholarly journals Corrosion and Electrochemical Properties of Nanocrystalline W-Mo Alloys in NaOH Solutions

1970 ◽  
Vol 11 ◽  
pp. 147-152
Author(s):  
Arun Khadka ◽  
Jagadeesh Bhattarai
Keyword(s):  
Corrosion Resistance ◽  
Electrochemical Properties ◽  
Open Circuit Potential ◽  
Science And Technology ◽  
Open Circuit ◽  
Sputter Deposition ◽  
Corrosion Tests ◽  
Corrosion Rates ◽  
Sputter Deposited ◽  
The Stability

The corrosion and electrochemical properties of sputter-deposited nanocrystalline binary W-Mo alloys were studied after immersion for 2429 h in different concentrations of NaOH solutions open to air at 25°C using corrosion tests and open circuit potential measurements. Molybdenum acts synergistically with tungsten in enhancing the corrosion resistance of the sputter-deposited binary W-Mo alloys so as to show higher corrosion resistance than those of alloy-constituting elements (i.e. tungsten and molybdenum) after immersion for 24 h in NaOH solutions. Open circuit potentials of all the examined sputter-deposited W-Mo alloys are shifted to the more positive (noble) direction with increasing molybdenum content in the alloys. The stability of the spontaneously passivated films formed on the binary W-Mo alloys is decreased with increasing concentrations of NaOH solutions. In spite of these facts, the corrosion rates of all the examined W-Mo alloys are almost independent of concentrations of NaOH solutions after immersion for 24 h at 25°C.Key words: nanocrystalline W-Mo alloys; sputter deposition; corrosion resistance; open circuit potential; NaOH solutions DOI: 10.3126/njst.v11i0.4137Nepal Journal of Science and Technology 11 (2010) 147-152

scholarly journals Open circuit potential shifts of activated carbon in aqueous solutions during chemical and adsorption interactions

2008 ◽  
Vol 38 (10) ◽  
pp. 1369-1374 ◽  
Author(s):  
Mikhail M. Goldin ◽  
Vladimir A. Kolesnikov ◽  
Mogely Sh. Khubutiya ◽  
Alexander G. Volkov ◽  
Gary J. Blanchard ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Open Circuit Potential ◽  
Open Circuit ◽  
Potential Shifts

Open-circuit potential of a Pt electrode immersed in different aqueous solutions

2017 ◽  
Vol 123 (1) ◽  
pp. 165-175 ◽  
Author(s):  
Aleksandra S. Stojiljković ◽  
Desanka Ž. Sužnjević ◽  
Stevan N. Blagojević
Keyword(s):  
Aqueous Solutions ◽  
Open Circuit Potential ◽  
Open Circuit ◽  
Pt Electrode
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