## Wikipedia - Doppio strato elettrico (it) diffuse layer

in electrochemistry
Also contains definition of: Gouy layer in electrochemistry
https://doi.org/10.1351/goldbook.D01714
The region in which non-specifically adsorbed ions are accumulated and distributed by the contrasting action of the electric field and thermal motion. Counter and @[email protected] in immediate contact with the surface are said to be located in the @[email protected] Ions farther away from the surface form the diffuse layer or Gouy layer.