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A membraneless microfluidic fuel cell stack
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DOI：10.1016/j.jpowsour.2010.08.069.png)
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摘要
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A membraneless microfluidic fuel cell stack architecture is presented that reuses reactants from one cell to a subsequent one, analogous to PEMFC stacks. On-chip reactant reuse improves fuel utilization and power densities relative to single cells. The reactants flow separately through porus electrodes and interface with a non-reacting and conductive electrolyte which maintains their separation. The reactants remain separated downstream of the interface and are used in subsequent downstream cells. This fuel cell uses porous carbon for electrocatalysts and vanadium redox species as reactants with a sulfuric acid supporting electrolyte. The overall power density of the fuel cell increases with reactant flow rate and decreasing the separating electrolyte flow rate. The peak power, maximum fuel utilization, and efficiency nearly double when electrically connecting the cells in parallel. (C) 2010 Elsevier B.V. All rights reserved.
Keyword:
Microfluidic fuel cell
Membraneless fuel cell
Flow battery
Fuel utilization
Reactant recycling
Stacked fuel cell
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7.9
论文数:
3.7W
被引数:
15.0W
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