Electrochemical Oxidation of Guanine: Electrode Reaction Mechanism and Tailoring Carbon Electrode Surfaces To Switch between Adsorptive and Diffusional Responses

4-Hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (1) shows catalytic electroactivity in homogeneous oxidation of hydroxylamine on a glassy carbon electrode. Kinetic parameters of the electrode reaction were measured and an catalytic reaction mechanism for the electrooxidation was proposed. Possible application of electrocatalytic activity of 1 in determination hydroxylamine was also discussed.

Download Full-text

Anodically pretreated carbon electrode surfaces and their effects on the electrode reaction.

NIPPON KAGAKU KAISHI ◽

10.1246/nikkashi.1985.1035 ◽

1985 ◽

pp. 1035-1041 ◽

Cited By ~ 2

Author(s):

Kivoko TAKAMURA ◽

Satoshi INOUE ◽

Fumiyo KUSU

Keyword(s):

Electrode Reaction ◽

Carbon Electrode ◽

Electrode Surfaces

Download Full-text

Al2O3 microparticles immobilized on glassy‑carbon electrode as catalytic sites for the electrochemical oxidation and high detectability of naproxen: Experimental and simulation insights

Journal of Electroanalytical Chemistry ◽

10.1016/j.jelechem.2021.114988 ◽

2021 ◽

Vol 882 ◽

pp. 114988

Author(s):

Ana P. Lima ◽

Gabriela L. Nunes ◽

Rodrigo G. Franco ◽

Rafael Mariano-Neto ◽

Guedmiller S. Oliveira ◽

...

Keyword(s):

Electrochemical Oxidation ◽

Glassy Carbon Electrode ◽

Glassy Carbon ◽

Carbon Electrode ◽

Catalytic Sites

Download Full-text

Effect of Supporting Background Electrolytes on the Nanostructure Morphologies and Electrochemical Behaviors of Electrodeposited Gold Nanoparticles on Glassy Carbon Electrode Surfaces

ACS Omega ◽

10.1021/acsomega.1c02670 ◽

2021 ◽

Vol 6 (38) ◽

pp. 24419-24431

Author(s):

Nor Dyana Zakaria ◽

Muhamad Huzaifah Omar ◽

Najahtul Najihah Ahmad Kamal ◽

Khairunisak Abdul Razak ◽

Turgut Sönmez ◽

...

Keyword(s):

Gold Nanoparticles ◽

Glassy Carbon Electrode ◽

Glassy Carbon ◽

Carbon Electrode ◽

Electrochemical Behaviors ◽

Electrode Surfaces ◽

Electrodeposited Gold Nanoparticles ◽

Background Electrolytes

Download Full-text

The Lead Dioxide Anode. II. The Kinetics and Participation of the Lead Dioxide Electrode in Electrochemical Oxidation Reactions in Sulfuric Acid

Australian Journal of Chemistry ◽

10.1071/ch9891527 ◽

1989 ◽

Vol 42 (9) ◽

pp. 1527 ◽

Cited By ~ 3

Author(s):

TH Randle ◽

AT Kuhn

Keyword(s):

Sulfuric Acid ◽

Electrochemical Oxidation ◽

Maximum Rate ◽

Lead Dioxide ◽

Chemical Oxidation ◽

Oxidation Reactions ◽

Electrochemical Regeneration ◽

Electrode Surfaces ◽

Lead Dioxide Electrode ◽

Lead Dioxide Anode

Lead dioxide is a strong oxidizer in sulfuric acid, consequently electrochemical oxidation of solution species at a lead dioxide anode may occur by a two-step, C-E process (chemical oxidation of solution species by PbO2 followed by electrochemical regeneration of the reduced lead dioxide surface). The maximum rate of each step has been determined in sulfuric acid for specified lead dioxide surfaces and compared with the rates observed for the electrochemical oxidation of cerium(III) and manganese(II) on the same electrode surfaces. While the rate of electrochemical oxidation of a partially reduced PbO2 surface may be sufficient to support the observed rates of CeIII and MnII oxidation at the lead dioxide anode, the rate of chemical reaction between PbO2 and the reducing species is not. Hence it is concluded that the lead dioxide electrode functions as a simple, 'inert' electron-transfer agent during the electrochemical oxidation of CellI and MnII in sulfuric acid. In general, it will most probably be the rate of the chemical step which determines the feasibility or otherwise of the C-E mechanism.

Download Full-text