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  2. Electrode potential - Wikipedia

    en.wikipedia.org/wiki/Electrode_potential

    To avoid possible ambiguities, the electrode potential thus defined can also be referred to as Gibbs–Stockholm electrode potential. In both conventions, the standard hydrogen electrode is defined to have a potential of 0 V. Both conventions also agree on the sign of E for a half-cell reaction when it is written as a reduction.

  3. Standard electrode potential - Wikipedia

    en.wikipedia.org/wiki/Standard_electrode_potential

    The galvanic cell potential results from the voltage difference of a pair of electrodes. It is not possible to measure an absolute value for each electrode separately. However, the potential of a reference electrode, standard hydrogen electrode (SHE), is defined as to 0.00 V. An electrode with unknown electrode potential can be paired with ...

  4. Standard electrode potential (data page) - Wikipedia

    en.wikipedia.org/wiki/Standard_electrode...

    Electrode potentials of successive elementary half-reactions cannot be directly added. However, the corresponding Gibbs free energy changes (∆G°) must satisfy ∆G° = – z FE°, where z electrons are transferred, and the Faraday constant F is the conversion factor describing Coulombs transferred per mole electrons. Those Gibbs free energy ...

  5. Latimer diagram - Wikipedia

    en.wikipedia.org/wiki/Latimer_diagram

    Latimer diagrams can be used in the construction of Frost diagrams, as a concise summary of the standard electrode potentials relative to the element.Since Δ r G o = -nFE o, the electrode potential is a representation of the Gibbs energy change for the given reduction.

  6. Gran plot - Wikipedia

    en.wikipedia.org/wiki/Gran_plot

    The Gran plot is based on the Nernst equation which can be written as = + ⁡ {+} where E is a measured electrode potential, E 0 is a standard electrode potential, s is the slope, ideally equal to RT/nF, and {H +} is the activity of the hydrogen ion.

  7. Electrochemical window - Wikipedia

    en.wikipedia.org/wiki/Electrochemical_window

    The electrochemical window (EW) is an important concept in organic electrosynthesis and design of batteries, especially organic batteries. [5] This is because at higher voltage (greater than 4.0 V) organic electrolytes decompose and interferes with the oxidation and reduction of the organic cathode/anode materials.

  8. Absolute electrode potential - Wikipedia

    en.wikipedia.org/wiki/Absolute_electrode_potential

    The absolute electrode potential is then defined as the Gibbs free energy for the absolute electrode process. To express this in volts one divides the Gibbs free energy by the negative of Faraday's constant. Rockwood's approach to absolute-electrode thermodynamics is easily expendable to other thermodynamic functions.

  9. Galvanic cell - Wikipedia

    en.wikipedia.org/wiki/Galvanic_cell

    The first step is to identify the two metals and their ions reacting in the cell. Then one looks up the standard electrode potential, E o, in volts, for each of the two half reactions. The standard potential of the cell is equal to the more positive E o value minus the more negative E o value.