Standard Hydrogen Electrode is meant by SHE.
The Standard Hydrogen Electrode, often known as SHE, has a standard electrode potential of 0 at 298 K. It is frequently abbreviated as SHE. This is so that it can be used as a benchmark when comparing it to other electrodes.
The SHE half cell reaction is expressed as follows:
2H+ (aq) + 2e- → H2 (g)
Typically, a platinum electrode serves as the catalyst for the reaction described above. The hydrogen gas inside of this half cell is under 1 bar of pressure.
The standard hydrogen electrode is used to measure the current and voltage fluxes during half-reactions.
The Standard Hydrogen Electrode, or SHE for short, serves as a base line in the electrochemical reactivity series and is used to calculate the potential values of various atoms and ions.
At a temperature of 298K, the standard electrode potential (SHE) is set to zero.
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