Development of a miniature silicon wafer fuel cell using L-ascorbic acid as fuel

摘要: In the current studies a miniature silicon wafer fuel cell (FC) using L-ascorbic acid as was developed. The employs and air reactants thin polymer electrolyte separator. Inductively coupled plasma (ICP) etching employed to fabricate high aspect-ratio columns on substrate increase surface area. A platinum layer deposited directly by sputtering used catalyst for electro-oxidation. Cyclic voltammetry shows that oxidation of sputtered is irreversible onset potentials are from 0.27 V 0.35 versus an Ag/AgCl reference electrode. It found at room temperature, with 1 mol/L acid/PBS (phosphate buffered solution) solution pumped anode ml/min flow rate spontaneously diffusing cathode oxidant, maximum output power density 1.95 mW/cm2 10 mA/cm2.