hydrogen electrode

Most of its characteristics are similar to the standard hydrogen electrode (with platinum).

For this reason, standard hydrogen electrode is typically used for reference potential.

The choice of platinum for the hydrogen electrode is due to several factors:

During the early development of electrochemistry, researchers used the normal hydrogen electrode as their standard for zero potential.

Transfer from the hydrogen electrode function into the sodium function.

Common reference electrodes and potential with respect to the standard hydrogen electrode:

The term refers to a hydrogen electrode immersed in the electrolyte solution actually used.

Hydrogen electrode is based on the redox half cell:

From the above, for the cell with the standard hydrogen electrode (potential of 0 by convention), one obtains:

To apply this process in practice, a glass electrode is used rather than the cumbersome hydrogen electrode.

Finally the column potential indicates the electric potential of the element measured against a Standard hydrogen electrode.

Potentials of any other electrodes are compared with that of the standard hydrogen electrode at the same temperature.

The scheme of the standard hydrogen electrode:

Such tabulations are referenced to the standard hydrogen electrode (SHE).

The hydrogen-ion selective electrode is a standard hydrogen electrode.

The reversible hydrogen electrode is a fairly practical and reproducible electrode "standard."

(SHE) denotes the electrode potential relative to the standard hydrogen electrode.

Reference electrode (standard hydrogen electrode or an equivalent)

The standard hydrogen electrode also uses a platinized platinum electrode due to its corrosion resistance, and other attributes.

A reference electrode, standard hydrogen electrode (SHE), for which the potential is defined or agreed upon by convention, needed to be established.

The potential of a copper copper sulfate electrode is +0.314 volt with respect to the standard hydrogen electrode.

These half-cell potentials are derived from the assignment of 0 volts to the standard hydrogen electrode (SHE).

For example, hydrogen is oxidized and protons are reduced readily at the platinum surface of a standard hydrogen electrode in aqueous solution.

Dynamic hydrogen electrode (DHE)

Water is consumed at the nickel electrode and produced at the hydrogen electrode, so the concentration of the potassium hydroxide electrolyte does not change.