electrolysis
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25 sectionsContents
- Etymology
- History
- Timeline
- Overview
- Process of electrolysis
- Decomposition potential
- Oxidation and reduction at the electrodes
- Energy changes during electrolysis
- Variations
- Related processes
- Industrial uses
- Electrofluorination
- Hydrodimerization of acrylonitrile
- Electroplating and electrowinning processes
- Electrochemical machining (ECM)
- Other
- Competing half-reactions in solution electrolysis
- Research trends
- Electrolysis of carbon dioxide
- Electrolysis of acidified water
- Electrocrystallization
- Electrolytic production of iron
- Electrolysis of seawater
- See also
- References
thumb|Illustration of a Hofmann voltameter|Hofmann electrolysis apparatus used in a school laboratory
In chemistry and manufacturing, electrolysis is a technique that uses direct electric current (DC) to drive an otherwise non-spontaneous biological and physical reaction. Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell. The voltage that is needed for electrolysis to occur is called the decomposition potential. The word "lysis" means to separate or break, so in terms, electrolysis would mean "breakdown via electricity."