Definitions of solid oxide fuel cell on the Web:

• a type of fuel cell in which the electrolyte is a solid, nonporous metal oxide, typically zirconium oxide (ZrO2) treated with Y2O3, and O-2 is …
  hydrogen.pnl.gov/cocoon/morf/hydrogen/article/852
• A solid oxide fuel cell (SOFC) is an electrochemical conversion device that produces electricity directly from fuel. …
  en.wikipedia.org/wiki/Solid oxide fuel cell

Definitions of phosphoric acid fuel cell on the Web:

• a type of fuel cell in which the electrolyte consists of concentrated phosphoric acid (H3PO4). Protons (H+) are transported from the anode to the …
  hydrogen.pnl.gov/cocoon/morf/hydrogen/article/852
• Phosphoric acid fuel cells (PAFC) are a type of fuel cell that uses liquid phosphoric acid as an electrolyte. …
  en.wikipedia.org/wiki/Phosphoric acid fuel cell

Definitions of alkaline fuel cell on the Web:

• a type of hydrogen and/or oxygen fuel cell in which the electrolyte is concentrated potassium hydroxide (KOH), and hydroxide ions (OH-) are …
  hydrogen.pnl.gov/cocoon/morf/hydrogen/article/852
• The alkaline fuel cell (AFC), also known as the Bacon fuel cell after its British inventor, is one of the most developed fuel cell technologies …
  en.wikipedia.org/wiki/Alkaline fuel cell

Definitions of molten carbonate fuel cell on the Web:

• a type of fuel cell that contains a molten carbonate electrolyte. Carbonate ions (CO3-2) are transported from the cathode to the anode. …
  hydrogen.pnl.gov/cocoon/morf/hydrogen/article/852
• Molten-carbonate fuel cells (MCFCs) are high-temperature fuel cells, that operate at temperatures of 600В°C and above.
  en.wikipedia.org/wiki/Molten carbonate fuel cell

Definitions of protonic ceramic fuel cell on the Web:

• The Protonic ceramic fuel cell or PCFC is based on a ceramic electrolyte material that exhibits high protonic conductivity at elevated temperatures.
  en.wikipedia.org/wiki/Protonic ceramic fuel cell

Definitions of formic acid fuel cell on the Web:

• Direct-formic acid fuel cells or DFAFCs are a subcategory of proton-exchange fuel cells where, the fuel, formic acid, is not reformed, but fed …
  en.wikipedia.org/wiki/Formic acid fuel cell

Definitions of reversible fuel cell on the Web:

• A reversible fuel cell (RFC) is a fuel cell that is designed to consume chemical A to produce electricity and chemical B and be reversed to …
  en.wikipedia.org/wiki/Reversible fuel cell

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