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alkaline fuel cell
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. NASA has used alkaline fuel cells since the mid-1960s, in Apollo-series missions and on the Space Shuttle. AFCs consume hydrogen and pure oxygen producing potable water, heat, and electricity. They are among the most efficient fuel cells, having the potential to reach 70%.
==Chemistry==
The fuel cell produces power through a redox reaction between hydrogen and oxygen. At the anode, hydrogen is oxidized according to the reaction:
producing water and releasing two electrons. The electrons flow through an external circuit and return to the cathode, reducing oxygen in the reaction:
producing hydroxide ions. The net reaction consumes one oxygen atom and two hydrogen atoms in the production of each water molecule. Electricity and heat are formed as by-products of this reaction.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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