Geobacter sulfurreducens biofilms developed under different growth conditions on glassy carbon electrodes: insights using cyclic voltammetry

2010 ◽  
Vol 46 (26) ◽  
pp. 4758 ◽  
Author(s):  
Krishna P. Katuri ◽  
Paul Kavanagh ◽  
Saravanan Rengaraj ◽  
Dónal Leech
Keyword(s):  
Cyclic Voltammetry ◽  
Glassy Carbon ◽  
Growth Conditions ◽  
Geobacter Sulfurreducens ◽  
Carbon Electrodes ◽  
Glassy Carbon Electrodes

Electrochemical investigations on some potential antibacterials, I

1995 ◽  
Vol 73 (2) ◽  
pp. 176-180 ◽  
Author(s):  
Rajeev Jain ◽  
M. Damodharan
Keyword(s):  
Cyclic Voltammetry ◽  
Glassy Carbon ◽  
Electrochemical Behaviour ◽  
Carbon Electrodes ◽  
Electron Wave ◽  
Nmr Studies ◽  
Glassy Carbon Electrodes ◽  
Single Well ◽  
Controlled Potential ◽  
Ph Range

Electrochemical behaviour of the medicinally important 4-(4′-sulphonamoyl)hydrazono-1-phenyl-3-methyl-2-pyrazolin-5-ones has been studied at d.m.e. and glassy carbon electrodes. At d.m.e., all six compounds exhibited a single, well-defined, four-electron wave in the pH range 2.5–12.0. Polarographic four-electron wave was found to be diffusion-controlled and irreversible. Similarly, cyclic voltammetry of these compounds at glassy carbon electrode exhibited a single peak. Peak potential shows shifts towards negative potential with pH, with linear segments up to pH 8.2 and are practically pH independent at higher pH values. An anodic peak at far-off positive potential was observed in the reverse scan, indicating the irreversible nature of the electrode process. Controlled potential electrolysis and coulometric studies gave the value of n as 4.0 ± 0.1 in the pH range 2.5 to 10.0. Out of the two major end products formed, one was identified as sulphanilamide and the other as 1-phenyl-3-methyl-4-amino-2-pyrazolin-5-one on the basis of IR and NMR studies. On the basis of DCP, LSV, CV, CPE, coulometry and spectral analysis, a mechanism has been postulated for the reduction of these compounds at d.m.e. and glassy carbon electrodes. Keywords: polarography, cyclic voltammetry, antibacterials, pyrazolin-5-ones.

scholarly journals Fabrication of Carbon Graphite-supported Pt–SiW12O40 Catalysts Effect of the Pt Loading on the Electrooxidation of Cyclohexane

2014 ◽  
Vol 17 (2) ◽  
pp. 049-054 ◽  
Author(s):  
M. S.A. Saleh ◽  
A. Aouissi ◽  
A. A. Al-Suhybani ◽  
A. M. Al-Mayouf
Keyword(s):  
Cyclic Voltammetry ◽  
Glassy Carbon ◽  
Carbon Electrodes ◽  
Icp Oes ◽  
Polyvinylidene Difluoride ◽  
Glassy Carbon Electrodes ◽  
Cyclohexyl Hydroperoxide

H4SiW12O40 (abbreviated as SiW) and Pt supported on carbon graphite (CG) with different Pt/SiW ratios were prepared and characterized by FTIR, XRD, ICP-OES, polarography, and TEM. The prepared catalysts were then after successfully attached onto glassy carbon electrodes by using polyvinylidene difluoride (PVDF) as binder. The resulting electrocatalysts were characterized by cyclic voltammetry (CV) and tested for the electrooxidation of cyclohexane. It has been found that the addition of SiW to the catalyst increased the dispersion of the Pt particles. The results of the electrocatalytic tests showed that cyclohexanone, cyclohexanol, and cyclohexyl hydroperoxide are formed as major products of the reaction. Higher Pt loadings promoted cyclohexanone production.

Anodic and cathodic modification of glassy-carbon electrodes affect iodine electrochemistry

2021 ◽  
Vol 379 ◽  
pp. 138181
Author(s):  
Shota Ito ◽  
Masatoshi Sugimasa ◽  
Yuichi Toshimitsu ◽  
Akihiro Orita ◽  
Masaki Kitagawa ◽  
...  
Keyword(s):  
Glassy Carbon ◽  
Carbon Electrodes ◽  
Glassy Carbon Electrodes

Ultrasensitive Electrochemical Determination of Phosphate in water by Hydrophilic TiO2 modified Glassy Carbon Electrodes

2021 ◽  
Author(s):  
Yan Jin ◽  
Tong QI ◽  
Yuqing Ge ◽  
Jin Chen ◽  
Li juan Liang ◽  
...  
Keyword(s):  
Differential Pulse Voltammetry ◽  
Glassy Carbon ◽  
Differential Pulse ◽  
Electrochemical Determination ◽  
Carbon Electrodes ◽  
Glassy Carbon Electrodes ◽  
Time Differential ◽  
Pulse Voltammetry ◽  
First Time

In this paper, ultrasensitive electrochemical determination of phosphate in water is achieved by hydrophilic TiO2 modified glassy carbon electrodes for the first time. Differential pulse voltammetry (DPV) method is proposed...

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