lectrolyte effects on hydrogen evolution and solution resistance in microbial lectrolysis cells
نویسندگان
چکیده
Protonatedweak acids commonly used inmicrobial electrolysis cell (MEC) solutions can affect the hydrogen evolution reaction (HER) through weak acid catalysis, and by lowering solution resistance between the anode and the cathode. Weak acid catalysis of the HER with protonated phosphate, acetate, and carbonate electrolyte species improved MEC performance by lowering the cathode’s overpotential by up to 0.30V at pH 5, compared to sodium chloride electrolytes. Deprotonation of weak acids into charged species at higher pHs improved MEC performance primarily by increasing the electrolyte’s conductivity icrobial electrolysis cell ydrogen evolution reaction
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