Electrochemical window
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The electrochemical window of a substance is the voltage range between which the substance doesn't get oxidized nor reduced. When the substance of interest is water, it is often referred to as the water window.
This range is important for the efficiency of an electrode, out of this range, water gets electrolysed, spoiling the electrical energy that is intended for another electrochemical reaction.
[edit] Materials
- Platinum (very expensive)
- (boron-)doped CVD diamond films on titanium or niobium: 3.5 - 1.5 V (undoped, diamond does not conduct electricity)
Citation: Brummer S B and Turner M J 1977 Electrochemical considerations for safe electrical stimulation of the nervous system with platinum electrodes IEEE Trans. Biomed. Eng. 24 59–63
