Five-Port Electrochemical Cell for Fundamental Electrochemistry Research, CFER5PEC

A 5-port electrochemical cell is the standard configuration for professional laboratory research. The five ports allow for a "three-electrode" setup while providing two additional ports for environmental control (purging and venting) or auxiliary sensors.

In a typical experiment, the ports are allocated as follows: (1) Port 1: Working Electrode (WE): The central port where your catalyst or material is placed. It is usually the largest port to accommodate various electrode diameters or rotating shafts. (2) Port 2: Reference Electrode (RE): Often placed in a Luggin Capillary to bring the reference point as close as possible to the working surface, minimizing IR drop. (3) Port 3: Counter Electrode (CE): Usually a Platinum or Graphite electrode. (4) Port 4: Gas Inlet (Purge): Used to bubble inert gas (Argon or Nitrogen) through the electrolyte to remove dissolved Oxygen, which can interfere with reductive measurements like CO2 reduction. (5) Port 5: Gas Outlet (Vent/Blanket): Allows the purge gas to escape. During the experiment, the inlet tube is lifted above the liquid to create an inert "blanket" that prevents Oxygen from re-entering.