Electrochemical synthesis of new Bi(III) complex by anodic oxidation of Bi in an aqueous solution of 4-toluenesulfonic acid

2021 ◽  
Author(s):  
Alexander Zahariev ◽  
Boriana Tzaneva ◽  
Nikolay Kaloyanov ◽  
Yordanka Marcheva ◽  
Veneta Parvanova ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Anodic Oxidation ◽  
Electrochemical Synthesis ◽  
Potential Range ◽  
Toluenesulfonic Acid ◽  
Anodic Behaviour

The anodic behaviour of bismuth in aqueous p-toluenesulfonic acid at three different concentrations and in the potential range from 0 to 1.0 V volt is studied. A significant amount of...

Fundamental Measurements of the Friction on an Atomically-Flat Terrace of Au(100) in Sulfuric Acid Solution under Potential Control Using Electrochemical Atomic Force Microscope

2006 ◽  
Vol 512 ◽  
pp. 395-398
Author(s):  
Nobumitsu Hirai ◽  
Tatsuya Tooyama ◽  
Toshihiro Tanaka
Keyword(s):  
Aqueous Solution ◽  
Sulfuric Acid ◽  
Silicon Nitride ◽  
Acid Solution ◽  
Atomic Force Microscope ◽  
Friction Force ◽  
Potential Range ◽  
Potential Control ◽  
Atomic Force ◽  
Atomically Flat

Potential dependence of the friction force between an atomically-flat terrace of Au(100) single crystal and a tip attached to a silicon nitride cantilever of electrochemical atomic force microscope (EC-AFM) have been investigated qualitatively in 0.05 M H2SO4 aqueous solution. It is found that the friction force gains when the potential increases in the potential range between −400 mV and 400 mV vs Hg/Hg2SO4 electrode.

scholarly journals Detection of Chlorine in a Non-aqueous Solution via Anodic Oxidation and a Photochemical Reaction

2018 ◽  
Vol 34 (1) ◽  
pp. 1-4
Author(s):  
Shogo NAKAGAWA ◽  
Hajime NISHIMURA ◽  
Fumihiro KODERA
Keyword(s):  
Aqueous Solution ◽  
Anodic Oxidation ◽  
Photochemical Reaction

scholarly journals Effect of Al Content in the Mg-Based Alloys on the Composition and Corrosion Resistance of Composite Hydroxide Films Formed by Steam Coating

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1188 ◽  
Author(s):  
Takahiro Ishizaki ◽  
Tomohiro Miyashita ◽  
Momo Inamura ◽  
Yuma Nagashima ◽  
Ai Serizawa
Keyword(s):  
Aqueous Solution ◽  
Corrosion Resistance ◽  
Treatment Time ◽  
Mg Alloys ◽  
Mg Alloy ◽  
Potential Range ◽  
Protective Film ◽  
Al Content ◽  
Passive Behavior ◽  
Superior Corrosion Resistance

Mg alloys are expected to be used in fields of the transportation industry because of their lightweight property, however, they show low corrosion resistance. To improve the corrosion resistance, preparation of the protective film on Mg alloys is essential. In this study, composite hydroxide films were prepared on three types of Mg alloys with different aluminum contents—that is, AZ31, AZ61, and AZ91D—by steam coating to investigate the relationship between the Mg-Al layered double hydroxide (LDH) content in the film and the Al content in the Mg alloys. Scanning electron microscopy (SEM) observation demonstrated that films were formed densely on all Mg alloy surfaces. X-ray diffraction (XRD) analyses revealed that all films prepared on AZ61 and AZ91D were composed of Mg(OH)2, AlOOH, and Mg-Al LDH, while the film containing Mg(OH)2 and Mg-Al LDH were formed only on AZ31. The Mg-Al LDH content in the film prepared on AZ61 was relatively higher than those prepared on AZ31 and AZ91D. The content of AlOOH in the film increased with an increase in the Al content in the Mg alloys. The film thickness changed depending on the treatment time and type of Mg alloy. Polarization curve measurements in 5 mass% NaCl solution demonstrated that the film prepared on the AZ61 showed complete passive behavior within the potential range of −1.0 to −0.64 V. In addition, immersion tests in 5 mass% NaCl aqueous solution for 480 h demonstrated that the film on the AZ61 had superior durability against 5 mass% NaCl aqueous solution. These results indicated that the film on the AZ61 had the most superior corrosion resistance among all samples. The results obtained in this study suggest that the LDH content in the film could be related to the corrosion resistance of the film.

Electrochemical synthesis of 1-N-phenyl-4-(sulfonyl)benzene-1,2-diamine derivatives: a mild and regioselective protocol

2016 ◽  
Vol 40 (6) ◽  
pp. 5442-5447 ◽  
Author(s):  
Mahnaz Sharafi-Kolkeshvandi ◽  
Davood Nematollahi ◽  
Farzad Nikpour ◽  
Eslam Salahifar
Keyword(s):  
Aqueous Solution ◽  
Electrochemical Oxidation ◽  
Electrochemical Synthesis ◽  
Regioselective Synthesis ◽  
Sulfinic Acids

Regioselective synthesis of 1-N-phenyl-4-(arylsulfonyl)benzene-1,2-diamine derivatives was carried out by the electrochemical oxidation of 2-aminodiphenylamine in aqueous solution in the presence of sulfinic acids as nucleophiles.

A Facile and Efficient One-Pot Electrochemical Synthesis of Thiazole Derivatives in Aqueous Solution

2015 ◽  
Vol 98 (2) ◽  
pp. 210-223 ◽  
Author(s):  
Mohsen Ameri ◽  
Ali Amoozadeh ◽  
Alireza Asghari ◽  
Davood Nematollahi ◽  
Mohammad Bakherad
Keyword(s):  
Aqueous Solution ◽  
Electrochemical Synthesis ◽  
Thiazole Derivatives ◽  
One Pot
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