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A regenerative fuel cell or reverse fuel cell (RFC) is a fuel cell in reverse mode that opposed to a standard fuel cell consumes electricity and chemical B to produce chemical A. By definition, the process of any fuel cell could be reversed[1]. However, a given device is usually optimized for operating in one mode and may not be built in such a way that it can be operated backwards. Standard fuel cells operated backwards generally do not make very efficient systems unless they are purpose-built to do so as with high pressure electrolysers[2], regenerative fuel cells, solid oxide electrolyser cells and unitized regenerative fuel cells[3].
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[edit] Regenerative PEM fuel cell
A hydrogen fueled proton exchange membrane fuel cell, for example, uses hydrogen gas (H2) and oxygen (O2) to produce electricity and water (H2O); a regenerative hydrogen fuel cell uses electricity and water to produce hydrogen and oxygen[4][5][6].
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Articles related to electrolysis |
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| Principles of electrolysis |
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| Electrolytic processes |
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| Materials produced by electrolysis |
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