Electrochemical Behavior of Sulphur Species in Molten Chlorides

2019 ◽  
Vol 3 (35) ◽  
pp. 599-608 ◽  
Author(s):  
Jana Hajasova ◽  
Geir Martin Haarberg ◽  
Ana Maria Martinez
Keyword(s):  
Electrochemical Behavior ◽  
Molten Chlorides ◽  
Sulphur Species

Electrochemical Behavior of Neodymium and Formation of Mg–Nd Alloys in Molten Chlorides

2017 ◽  
Vol 5 (9) ◽  
pp. 8089-8096 ◽  
Author(s):  
Zhongsheng Hua ◽  
Huan Liu ◽  
Jian Wang ◽  
Jiwen He ◽  
Saijun Xiao ◽  
...  
Keyword(s):  
Electrochemical Behavior ◽  
Molten Chlorides

Electrochemical Behavior of Ba2+ at Liquid Metal Cathodes in Molten Chlorides

1999 ◽  
Vol 54 (12) ◽  
pp. 739-746 ◽  
Author(s):  
Masahiko Matsumiya ◽  
Masatoshi Takano ◽  
Ryuzo Takagi ◽  
Reiko Fujita
Keyword(s):  
Cyclic Voltammetry ◽  
Diffusion Coefficient ◽  
Liquid Metal ◽  
Kinetic Parameters ◽  
Electrochemical Behavior ◽  
Alloy Formation ◽  
Cathodic Reaction ◽  
Metal Electrodes ◽  
Molten Chlorides ◽  
Differential Methods

Abstract The electrochemcal behavior of Ba2+ on several liquid metal electrodes (AI, Bi, Cd, Pb, Sn and Zn) in a NaCl-KCl equimolar solvent at 1000 K has been investigated by means of cyclic voltammetry and chronopotentiometry. The kinetic parameters and the diffusion coefficient for Ba2+ were determined by cyclic voltammetry with conventional, semi-integral, semi-differential methods and chronopotentiometry. It was revealed that on a liquid Pb electrode in the NaCl-KC1 system at 1000 K the quasi-reversible cathodic reaction Ba2+ + 2e- + Pb → BaPb takes place. In addition, the kinetic parameters and the diffusion coefficient agree well with the values determined by various electroanalyses. The possibility of alloy formation between Ba and Sn was also demonstrated in this paper.

Electrochemical behavior of self-assembled monolayers based on functionalized oligothiophenes

1998 ◽  
Vol 95 (6) ◽  
pp. 1339-1342 ◽  
Author(s):  
R. Michalitsch ◽  
A. El Kassmi ◽  
P. Lang ◽  
A. Yassar ◽  
F. Garnier
Keyword(s):  
Electrochemical Behavior ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Corrosion-electrochemical behavior of β-W based CVD coatings in NaCl solution

2019 ◽  
pp. 29-32
Author(s):  
V.V. Dushik ◽  
◽  
G.V. Redkina ◽  
N.V. Rozhanskii ◽  
T.V. Rybkina ◽  
...  
Keyword(s):  
Electrochemical Behavior ◽  
Nacl Solution ◽  
Corrosion Electrochemical Behavior

Study of Electrochemical Behavior of Some Dental Alloys

2018 ◽  
Vol 69 (6) ◽  
pp. 1598-1602
Author(s):  
Alice Arina Ciocan Pendefunda ◽  
Constanta Mocanu ◽  
Doriana Agop Forna ◽  
Cristina Iordache ◽  
Elena Luca ◽  
...  
Keyword(s):  
Oral Cavity ◽  
Electrochemical Behavior ◽  
Base Alloy ◽  
Artificial Saliva ◽  
Surface Condition ◽  
Continuous Process ◽  
Metal Alloys ◽  
Alloy Surface ◽  
Dental Alloys ◽  
Dental Restorations

The purpose of the study is to investigate the electrochemical behavior of two dental alloys: palladium alloy (Palidor) and Ni-Cr alloy (Verasoft) in three types of artificial saliva. Determination of corrosion potential and recording of linear and cyclic polarization curves were performed with PGP201 potentiostat (VoltaLab 21- Radelkis Copenhagen. In order to study the modifications produced on the surface of the electrodes, a complex optical microscope MC 1 research type (IOR, Romania) was used, adapted to a digital camera, which was connected to a computer for the digital acquisition of images . Two metal alloys based on Ag-Pd and Ni-Cr were used for the experiments. The materials used came from different types of dental restorations removed from the oral cavity of the patients after a 5-15 years period. As corrosion environments, three artificial saliva were used: Fusayama, Afnor and Rondelli. The Pd-Ag dental alloy exhibits a very good corrosion resistance and the treatment in the Afnor saliva does not affect the surface of the alloy. Electrochemical behavior in Fusayama-Meyer�s saliva of the alloy surface results in a series of spots representing deposits of insoluble salts resulting from the oxidation process, while in the Rondelli saliva there is a series of small corrosion points on the alloy surface. The behavior of the Verasoft alloy in the Afnor and Rondelli saliva is similar; In both solutions, the potential breakthroughs are very close, but in Fusayama-Meyer�s saliva, the potential for initiation of corrosion points is very low (206 mV), a potential that can be encountered in the oral cavity. All metals and metal alloys, even the noble and semi-precious ones, are susceptible to corrosion, forming compounds with properties different from those of the metal or base alloy, which change their surface condition. Metallic dental restorations are permanently affected by the factors of the oral environment (physical-mechanical, chemical and biological), being subjected to a continuous process of degradation.

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