The electrochemical behaviour of SWCNTs randomly dispersed on gold and glassy carbon electrode surfaces was characterised via cyclic voltammetry and complex impedance spectroscopy, using the ferri/ferrocyanide couple as a redox active test probe . In subsequent investigations glucose oxidase (GOx) was adsorbed onto the SWCNT ensemble without apparent denaturation of the enzyme. Cyclic voltammet...

The kinetics of the reduction of bisulfite by surfactant myoglobin films were examined using chronoamperometry after the overall stoichiometry of the reduction was examined by coulometry. Surfactant films of myoglobin were formed on a graphite (HOPG) electrode. On this electrode, two waves were observed for myoglobin, corresponding to the Fe(III)/Fe(II) and Fe(II)/Fe(I) reductions. Cyclic volta...

Recently introduced novel voltammetric and chronoamperometric techniques, derived from square-wave voltammetry (SWV), are being studied for their analytical utility. Three protocols, namely potential-corrected, multi-sampled, cumulative voltammetry, along with chronoamperometry (also known as electrochemical Faradaic spectroscopy), described analytically tested. The evaluation is based on both ...

The electrochemical behavior of ascorbic acid on a cobalt hydroxide modified glassy carbon (CHM–GC) electrode in alkaline solution was investigated. The process of the involved oxidation and its kinetics were established using the cyclic voltammetry, chronoamperometry techniques, as well as by steady state polarization measurements. The results revealed that cobalt hydroxide promotes the rate o...

Discontinuous Bessel integrals are applied to a boundary value problem related to chronoamperometry, with zero concentration at the disk satisfied on the average and the zero flux at the shroud satisfied approximately only. Current functions are derived, series expansion at long time and asymptotic expansion at short times are given. Plots of numerical calculations of current functions are pres...

Dimensionally stable anodes (DSA) were polarized at different constant potential values for several days in garden compost. After an initial lag period ranging from 1 to 10.5 days, the current increased fast and then stabilized for days. Current densities higher than 100 mA m(-2) and up to 385 mA m(-2) were obtained with the sole organic matter contained in compost as substrate. Control experim...