The electrosorption of U(VI) and NO3 from waste water was carried out by using an activated carbon fiber(ACF) felt electrode. Electrosorption experiments showed that the applied negative potential increased the adsorption kinetics and capacity in comparison to the open circuit potential(OCP) adsorption for uranium ions. The absolute value of the applied negative potential controlled the adsorpt...

The purpose of this study was to develop novel methods for attachment and cultivation of specifically positioned single yeast cells on a microelectrode surface with the application of a weak electrical potential. Saccharomyces cerevisiae diploid strains attached to an indium tin oxide/glass (ITO) electrode to which a negative potential between -0.2 and -0.4 V vs. Ag/AgCl was applied, while they...

In this work the analytical expressions of half-time T1/2 and its derivatives in respect to distance ∂T1/2/∂R in a one-dimensional RC medium (a current electrode has a shape of the segment) and in a two-dimensional RC medium (a current electrode has a shape of the circle) were received. First, by using a well-known in electrostatics a superposition principle, the current’s electrodes were divid...

In this research, selective flotation of Mo from the Sungun Cu-Mo concentrate was evaluated in different operating conditions. It was found that the addition of 16 kg/t Na2S into flotation pulp and aeration decreased rapidly the initial oxidized- reduction potential (ORP) of the pulp from +228mV to -597 mV (with reference to standard Ag/AgCl electrode) and increasing the amount of Na2S by 50kg/...

Rapid scan cyclic voltammetry has been employed to probe the potential induced transitions of a dioleoylphosphatidylcholine (diOPC) monolayer deposited onto a mercury surface. By employing two different types of electrodes, a hanging mercury drop electrode (HMDE) and a mercury-film-coated gold electrode (J-electrode), we were able to deposit the diOPC monolayer in tails-down and heads-down fash...

Equilibrium in the electronic subsystem across the solution-metal interface is considered to connect the standard electrode potential to the statistics of localized electronic states in solution. We argue that a correct derivation of the Nernst equation for the electrode potential requires a careful separation of the relevant time scales. An equation for the standard metal potential is derived ...

The interface of a 1 : 2 molar choline chloride/ethylene glycol deep eutectic solvent with a glassy carbon electrode has been investigated by polarization modulation reflection-absorption spectroscopy (PM-IRRAS). Temporal spectral changes at open circuit potential show the experiments to be surface sensitive and indicate slow adsorption of electrolyte molecules on the electrode surface. In situ...

A truncated single-crystal surface varies to a more stable two-dimensional array of atoms by raising the temperature. On the other hand, metal particles may grow via a two-dimensional precursor array of atoms. The (1 × 1) Au(111), Au(110), and Au(100) surfaces undergo reconstruction in electrolyte solutions at a certain negative electrode potential (vs. SCE). The icosahedral or decahedral Au pa...

in this research, we reported a novel modified carbon ceramic electrode (cce) using ni/al layered double hydroxide as modifier was fabricated by sol-gel technique. the ni/al layered double hydroxide modified sol gel derived carbon ceramic (ni/al ldh-sgd-cc) electrode was used for electrocatalytic oxidation of acetaldehyde. the oxidation of acetaldehyde happens at the potential where ni (iii) sp...

the electrochemical oxidation of sulfamethazine (smz) has been studied at a multi-walled carbon nanotubes modified glassy carbon electrode (mwcnt-gce) by cyclic voltammetry. this modified electrode (mwcnt-gce) exhibited excellent electrocatalytic behavior toward the oxidation of smz as evidenced by the enhancement of the oxidation peak current and the shift in the anodic potential to less posit...