scholarly journals Anodic oxidation of amines. IX. Anodic oxidation process of .ALPHA.-amino acids in aqueous buffer of pH 10.

1984 ◽  
Vol 32 (12) ◽  
pp. 4740-4745 ◽  
Author(s):  
MASAICHIRO MASUI ◽  
YOSHIYUKI KAMADA ◽  
TAEKO IIZUKA ◽  
SHIGEKO OZAKI
Keyword(s):  
Amino Acids ◽  
Anodic Oxidation ◽  
Oxidation Process ◽  
Aqueous Buffer ◽  
Anodic Oxidation Process

scholarly journals A Comparative Analysis of 2-(Thiocyanomethylthio)-Benzothiazole Degradation Using Electro-Fenton and Anodic Oxidation on a Boron-Doped Diamond Electrode

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Armando Vázquez ◽  
Lucía Alvarado ◽  
Isabel Lázaro ◽  
Roel Cruz ◽  
José Luis Nava ◽  
...  
Keyword(s):  
Anodic Oxidation ◽  
Oxidation Process ◽  
Volumetric Flow Rate ◽  
Boron Doped Diamond ◽  
Aquatic Life ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Acidic Chloride ◽  
Anodic Oxidation Process

2-(Thiocyanomethylthio)-benzothiazole (TCMTB) is used as fungicide in the paper, tannery, paint, and coatings industries, and its study is important as it is considered toxic to aquatic life. In this study, a comparison of direct anodic oxidation (AO) using a boron-doped diamond electrode (BDD) and electro-Fenton (EF) processes for TCMTB degradation in acidic chloride and sulfate media using a FM01-LC reactor was performed. The results of the electrolysis processes studied in the FM01-LC reactor showed a higher degradation of TCMTB with the anodic oxidation process than with the electro-Fenton process, reaching 81% degradation for the former process versus 47% degradation for the latter process. This difference was attributed to the decrease in H2O2 during the EF process, due to parallel oxidation of chlorides. The degradation rate and current efficiency increased as a function of volumetric flow rate, indicating that convection promotes anodic oxidation and electro-Fenton processes. The results showed that both AO and EF processes could be useful strategies for TCMTB toxicity reduction in wastewaters.

scholarly journals Downscaled anodic oxidation process for aluminium in oxalic acid

2017 ◽  
Vol 181 ◽  
pp. 012044 ◽  
Author(s):  
M Sieber ◽  
R Morgenstern ◽  
D Kuhn ◽  
M Hackert-Oschätzchen ◽  
A Schubert ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Anodic Oxidation ◽  
Oxidation Process ◽  
Anodic Oxidation Process

scholarly journals Experimental Analysis of the Influence of Factors Acting on the Layer Thickness Formed by Anodic Oxidation of Aluminium

Coatings ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 57 ◽  
Author(s):  
Miroslav Gombár ◽  
Alena Vagaská ◽  
Marta Harničárová ◽  
Jan Valíček ◽  
Milena Kušnerová ◽  
...  
Keyword(s):  
Surface Layer ◽  
Layer Thickness ◽  
Anodic Oxidation ◽  
Current Practice ◽  
Oxidation Process ◽  
Influence Factors ◽  
Basic Criterion ◽  
Electrolysis Method ◽  
Current Densities ◽  
Anodic Oxidation Process

The current practice in the field of anodic oxidation of aluminium and its alloys is based mainly on a set of partial empirical experiences of technologists obtained during surface treatment. The aim of the presented paper is deeper and more complex identification of the influence of chemical and technological factors acting during the anodic oxidation process especially on the thickness of the formed surface layer by the electrolysis method in a sulfuric acid solution. The current density was selected as the basic criterion for verification evaluation and analysis of experimentally obtained data, in accordance with Faraday’s laws. For current densities of 1 to 5 A·dm−2, the synergy of significant influence factors was identified, and mathematical and statistical models were then developed to predict the thickness of the surface layer with a relative accuracy of up to 10%. The presented paper does not only focus on the observation of the thickness of the surface layer desired by the customer, but also on the monitoring of this thickness in relation to the overall layer thickness of the coating.

Preparation and characterization of electrode from annealed nano-diamond particles with boric acid for anodic oxidation process

2020 ◽  
Vol 362 ◽  
pp. 137221
Author(s):  
Mohammed A. Ajeel ◽  
Rahman Ismael Mahdi ◽  
Mohamed Kheireddine Taeib Aroua ◽  
WH Abd Majid
Keyword(s):  
Boric Acid ◽  
Anodic Oxidation ◽  
Oxidation Process ◽  
Diamond Particles ◽  
Anodic Oxidation Process

Porous Tin Oxides Prepared Using an Anodic Oxidation Process

2004 ◽  
Vol 16 (3) ◽  
pp. 237-240 ◽  
Author(s):  
H.-C. Shin ◽  
J. Dong ◽  
M. Liu
Keyword(s):  
Anodic Oxidation ◽  
Oxidation Process ◽  
Tin Oxides ◽  
Anodic Oxidation Process

Memristive behavior of TiOx obtained via Pb(II)-assisted anodic oxidation process

2019 ◽  
Vol 30 (6) ◽  
pp. 5733-5743 ◽  
Author(s):  
Dincer Gokcen ◽  
Orhun Şentürk ◽  
Erhan Karaca ◽  
Nuran Özçiçek Pekmez ◽  
Kadir Pekmez
Keyword(s):  
Anodic Oxidation ◽  
Oxidation Process ◽  
Memristive Behavior ◽  
Anodic Oxidation Process

Anodic oxidation of lead in aqueous carbonate solutions. II. Film formation and dissolution in the pH range 9 to 14

1988 ◽  
Vol 66 (11) ◽  
pp. 2941-2946 ◽  
Author(s):  
D. W. Shoesmith ◽  
M. G. Bailey ◽  
P. Taylor
Keyword(s):  
Anodic Oxidation ◽  
Electrode Surface ◽  
Oxidation Process ◽  
Film Formation ◽  
Electrochemical Techniques ◽  
Rotating Disk ◽  
Base Layer ◽  
Ph Values ◽  
Carbonate Solutions ◽  
Anodic Oxidation Process

The anodic oxidation of lead has been studied in aqueous carbonate solutions at pH values in the range 9 ≤ pH ≤ 14. The solid films formed on the electrode surface have been identified by X-ray diffractometry. The dissolution and film formation processes have been studied by a number of electrochemical techniques at rotating disk electrodes. The anodic oxidation process can be divided into two distinct regions. In the main anodic oxidation process, a variety of surface phases is formed. The nature of the phase formed is pH-dependent. Plumbonacrite (Pb10O(OH)6(CO3)6) formation is observed at all pH values and predominates at pH ≥ 13. At pH < 11, cerussite (PbCO3) is the predominant phase, whereas at intermediate pH values, hydrocerussite (Pb3(OH)2(CO3)2) predominates. The dissolution rate of Pb2+ species from the electrode surface is directly proportional to the solubility of the predominant phase present. At more positive potentials, a reactivation, involving increased dissolution and a further stage of film formation, is observed. Litharge (PbO) is observed to grow underneath the initially formed basic lead carbonates. Dissolution occurs either by the field-assisted dissolution of the base-layer on the electrode or by metal dissolution through faults in the base-layer.

Features of local anodic oxidation process

2016 ◽  
Author(s):  
A. Belov ◽  
Yu. Chaplygin ◽  
S. Lemeshko ◽  
I. Sagunova ◽  
V. Shevyakov
Keyword(s):  
Anodic Oxidation ◽  
Oxidation Process ◽  
Local Anodic Oxidation ◽  
Anodic Oxidation Process
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