Electrocatalytic Oxidation of Sulfite Ion on the Gold Carbon Ceramic Modified Electrode with Prussian Blue-Complex

2018 ◽  
Vol 16 (12) ◽  
pp. 918-923
Author(s):  
Sohrab Ershad ◽  
Razei Rasi Mofidy
Keyword(s):  
Prussian Blue ◽  
Modified Electrode ◽  
Electrocatalytic Oxidation ◽  
Carbon Ceramic ◽  
Sulfite Ion

scholarly journals Rotating disk electrode study of electrocatalytic oxidation of ascorbate at Prussian blue modified electrode

2009 ◽  
Vol 7 (4) ◽  
pp. 739-744 ◽  
Author(s):  
Rūta Araminaitė ◽  
Rasa Garjonytė ◽  
Albertas Malinauskas
Keyword(s):  
Prussian Blue ◽  
Modified Electrode ◽  
Electrode Potential ◽  
Electrocatalytic Oxidation ◽  
Rotating Disk ◽  
Rotating Disk Electrode ◽  
Disk Electrode ◽  
Solution Ph ◽  
Catalytic Current ◽  
Onset Potential

AbstractElectrooxidation of ascorbate has been studied with the use of a rotating disk electrode. The results obtained show an efficient electrocatalytic oxidation of ascorbate at the Prussian blue (PB) modified electrode to proceed in solutions of pH 5.5 and 7.3. Depending on solution pH, the onset potential for ascorbate electrooxidation at PB modified electrode appears shifted by 0.1–0.2 V to lower values, as compared to an unmodified glassy carbon electrode. Within the electrode potential window of 0.3 to 0.5 V vs. Ag/AgCl, and electrode rotation velocity of 50–2000 rpm, the catalytic current obeys Koutecky-Levich equation at a submillimolar ascorbate concentration. Kinetic current densities, obtained from the data treatment, are higher for a pH 5.5 solution, and also at higher electrode potential.

CTAB-Promoted Prussian Blue-Modified Electrode and Its Cation Transport Characteristics for K+, Na+, Li+, and NH4+Ions

2008 ◽  
Vol 112 (4) ◽  
pp. 1149-1156 ◽  
Author(s):  
R. Vittal ◽  
Kang-Jin Kim ◽  
H. Gomathi ◽  
V. Yegnaraman
Keyword(s):  
Prussian Blue ◽  
Modified Electrode ◽  
Cation Transport

Electrocatalytic Oxidation of NADH Using Alizarin Immobilized Carbon Nanotube Modified Electrode

2019 ◽  
Vol 41 (27) ◽  
pp. 9-14 ◽  
Author(s):  
Swetha Puchakayala ◽  
Senthil Kumar Annamalai
Keyword(s):  
Carbon Nanotube ◽  
Modified Electrode ◽  
Electrocatalytic Oxidation

scholarly journals Electrocatalytic determination of captopril using a carbon paste electrode modified with N-(ferrocenyl methylidene) fluorene-2-amine and graphene/ZnO nanocomposite

2019 ◽  
Vol 84 (2) ◽  
pp. 175-185 ◽  
Author(s):  
Mohadeseh Safaei ◽  
Hadi Beitollahi ◽  
Masoud Shishehbore ◽  
Somayeh Tajik ◽  
Rahman Hosseinzadeh
Keyword(s):  
Modified Electrode ◽  
Carbon Paste Electrode ◽  
Electrocatalytic Oxidation ◽  
Differential Pulse ◽  
Diagnostic Techniques ◽  
Carbon Paste ◽  
Pulse Voltammetry ◽  
Electrocatalytic Determination ◽  
Paste Electrode

A carbon paste electrode (CPE) was modified with N-(ferrocenylmethylidene) fluorene-2-amine and graphene/ZnO nanocomposite. The electrooxidation of captopril (CAP) at the surface of the modified electrode was studied using electrochemical approaches. The electrochemical study of the modified electrode, as well as its efficiency for the electrocatalytic oxidation of captopril, is described. The electrode was used to study the electrocatalytic oxidation of captopril, by cyclic voltammetry (CV), chronoamperometry (CHA) and differential pulse voltammetry (DPV) as diagnostic techniques. It has been found that the oxidation of captopril at the surface of modified electrode occurs at a potential of about 340 mV less positive than that of an unmodified CPE. DPV of captopril at the electrochemical sensor exhibited two linear dynamic ranges (0.1?100.0 and 100.0?800.0 ?M) with a detection limit (3?) of 0.05 ?M.

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