Electrochemistry
What is electrochemistry?
Electrochemistry is the study of chemical reactions that involve the movement of electrons. These reactions occur in cells (Fig. 4) with electrodes (conductive surfaces) that facilitate the transfer of electrons via oxidation (loss of electrons, occurs at the anode) and reduction (gain of electrons, occurs at the cathode).
Figure 4. Diagram of a typical electrochemical cell.
Where is electrochemistry used?
Electrochemical cells are currently used in a wide variety of applications. The most common use of electrochemistry is in batteries. Electrochemistry is also used in fuel cells. Fuel cells are battery replacements that produce chemical energy from fuels via electro-oxidation reactions.8 Additionally electrochemical biosensors show promise in medical technology as electrode surfaces can be tailored to specific biologic systems.9
Why use electrochemistry for plastic degradation?
Traditional plastic recycling methods often require high temperatures, harsh chemical conditions, expensive infrastructure and materials, and can be difficult to implement on a large scale.
In the context of plastics, electrochemistry offers a new way to break down polymer chains into useful chemical building blocks under milder and potentially greener conditions using renewable energy sources and tailored electrodes.
References
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Electrochemical Recycling 