Electromotive force of a cell built of two electrodes
In electrochemistry, electrode potential is the voltage of a galvanic cell built from a standard reference electrode and another electrode to be characterized.[1] By convention, the reference electrode is the standard hydrogen electrode (SHE). It is defined to have a potential of zero volts. It may also be defined as the potential difference between the charged metallic rods and salt solution.
The electrode potential has its origin in the potential difference developed at the interface between the electrode and the electrolyte. It is common, for instance, to speak of the electrode potential of the M+/M redox couple.
^IUPAC, IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "electrode potential, E". doi:10.1351/goldbook.E01956
and 28 Related for: Electrode potential information
electrochemistry, electrodepotential is the voltage of a galvanic cell built from a standard reference electrode and another electrode to be characterized...
In electrochemistry, standard electrodepotential E ⊖ {\displaystyle E^{\ominus }} , or E r e d ⊖ {\displaystyle E_{red}^{\ominus }} , is a measure of...
Absolute electrodepotential, in electrochemistry, according to an IUPAC definition, is the electrodepotential of a metal measured with respect to a universal...
A reference electrode is an electrode that has a stable and well-known electrodepotential. The overall chemical reaction taking place in a cell is made...
calomel electrode. For example, it is usually the internal reference electrode in pH meters and it is often used as reference in reduction potential measurements...
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air)...
electrons from or lose electrons to an electrode and thereby be reduced or oxidised respectively. Redox potential is expressed in volts (V). Each species...
hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute...
calculation of the reduction potential of a reaction (half-cell or full cell reaction) from the standard electrodepotential, absolute temperature, the...
transference by measuring the potential difference between a hydrogen electrode and a standard electrode such as the silver chloride electrode. The pH of aqueous...
the analyte versus the potential of the working electrode. Voltammetry is the study of current as a function of applied potential. Voltammetric methods...
experiment, the working electrodepotential is ramped linearly versus time. Unlike in linear sweep voltammetry, after the set potential is reached in a CV...
The vertical axis is labeled EH for the voltage potential with respect to the standard hydrogen electrode (SHE) as calculated by the Nernst equation. The...
then the measured cell potential is called the standard electrodepotential for the electrode. The standard electrodepotential for the SHE is zero, by...
for electrochemical processes. Unlike the standard hydrogen electrode, its measured potential does change with the pH, so it can be directly used in the...
membrane potential. The term electrochemical potential is sometimes used to mean an electrodepotential (either of a corroding electrode, an electrode with...
Then one looks up the standard electrodepotential, Eo, in volts, for each of the two half reactions. The standard potential of the cell is equal to the...
a metal electrode submerged in an electrolyte). The Galvani potential is named after Luigi Galvani. First, consider the Galvani potential between two...
redox reaction is often discussed in terms of redox couples and electrodepotentials. Atom transfer – An atom transfers from one substrate to another...
glass electrodes is for the measurement of pH. The pH electrode is an example of a glass electrode that is sensitive to hydrogen ions. Glass electrodes play...
reactions at each electrode and refers to an electrode with no current flowing. An extract from the table of standard electrodepotentials is shown below...
pH meter measures the difference in electrical potential between a pH electrode and a reference electrode, and so the pH meter is sometimes referred to...
The saturated calomel electrode (SCE) is a reference electrode based on the reaction between elemental mercury and mercury(I) chloride. It has been widely...
Latimer diagram of a chemical element is a summary of the standard electrodepotential data of that element. This type of diagram is named after Wendell...
affecting the phenomenon. A related concept in electrochemistry is the electrodepotential at the point of zero charge. Generally, the pzc in electrochemistry...
The auxiliary electrode is distinct from the reference electrode, which establishes the electrical potential against which other potentials may be measured...
Global Information