Simulation studies on a rotating ring disk electrode system: Role of supporting electrolyte in determination of relevance of ionic migration

AIChE Journal ◽  
2012 ◽  
Vol 59 (4) ◽  
pp. 1390-1399 ◽  
Author(s):  
Sirshendu Guha
Keyword(s):  
Supporting Electrolyte ◽  
Electrode System ◽  
Simulation Studies ◽  
Disk Electrode ◽  
Rotating Ring Disk Electrode

The stripping voltammetric determination of copper with a rotating ring-disk electrode

1982 ◽  
Vol 47 (5) ◽  
pp. 1315-1320
Author(s):  
Zbyněk Vedral ◽  
Přemysl Beran ◽  
František Opekar ◽  
Karel Štulík
Keyword(s):  
Electrochemical Deposition ◽  
Glassy Carbon ◽  
Active Sites ◽  
Carbon Electrode ◽  
Disk Electrode ◽  
Rotating Ring Disk Electrode ◽  
Energy Of Interaction ◽  
Determination Of Copper ◽  
Electrochemical Stripping

The use of a rotating ring-disk electrode in electrochemical stripping analysis was verified. The electrochemical deposition and stripping of copper was studied on an electrode with a glassy carbon disk and platinum ring or with a mercury-covered glassy carbon disk. Copper can be determined down to concentrations of about 10-9 mol l-1 with an error not greater than 5% on a disk with a mercury film and 13% on the carbon electrode. The coverage of the glassy carbon by a monolayer of copper and the energy of interaction between the copper atoms and active sites on the surface of the glassy carbon were found from the areas and positions of the stripping peaks.

Effects of Different Kinds of Supporting Electrolyte on the Electrochemical Test of T501

2014 ◽  
Vol 1033-1034 ◽  
pp. 466-470
Author(s):  
Chen Yao Liu ◽  
Na Na Wang ◽  
Yun Guang Huang ◽  
Xue Yuan Tan ◽  
Li Ping Zhu ◽  
...  
Keyword(s):  
Graphite Electrode ◽  
Supporting Electrolyte ◽  
Reference Electrode ◽  
Electrode System ◽  
Ethanol Solution ◽  
Transformer Oil ◽  
Electrochemical Test ◽  
Good Oxidation Resistance ◽  
Solution Type

The functions of transformer oil in the transformer were insulation and cooling, its position was very important. Oil usually keeps its good oxidation resistance by adding antioxidants, the most common used antioxidants in the transformer oil was T501, the oxidation rate of oil could be delayed significantly by adding it, thereby the life of oil would be prolonged. But the electrochemical performance of oil would be affected by the excessive addition of antioxidants, so it was important to determine the content antioxidant precisely. This paper mainly studied under the three electrode system, the determined electrode material and electrode size, studied the influence of support electrolyte species on the determination of T501 by electrochemical methods, choose the most suitable electrolyte solution type. It was further demonstrated that the working electrode was a 4 mm-diameter graphite electrode, Pt coil was used as the counter electrode, the reference electrode was a calomel electrode, the optimum electrolyte was KOH, optimum organic solvent was 98% ethanol solution.

Photoelectrocatalytic analysis and electrocatalytic determination of hydroquinone by using a Cu2O–reduced graphene oxide nanocomposite modified rotating ring-disk electrode

The Analyst ◽  
2016 ◽  
Vol 141 (15) ◽  
pp. 4772-4781 ◽  
Author(s):  
Hong Xie ◽  
Kaiyue Duan ◽  
Muyin Xue ◽  
Yongling Du ◽  
Chunming Wang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Disk Electrode ◽  
Rotating Ring Disk Electrode ◽  
Reduced Graphene ◽  
Electrocatalytic Determination

In this work, a Cu2O–rGO nanocomposite modified Pt RRDE was successfully fabricated for the photoelectrocatalytic analysis and electrocatalytic determination of hydroquinone.

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