Electrochimica Acta, Vol.40, No.3, 285-290, 1995
High-Performance Electrodes with Very-Low Platinum Loading for Polymer Electrolyte Fuel-Cells
Research and development on low platinum loading electrode is very important in reducing the capital cost of fuel stack and conserving limited Pt resources. This paper presents the advances made at the Centre for Electrochemical and Energy Research (CEER), SPIC Science Foundation, India on low platinum loading (0.1 mg Pt cm(-2)) electrodes. The performance of the electrode fabricated at the centre with 0.1 mg Pt cm(-2) was found to be comparable with the state-of-the-art electrode with 0.4 mg Pt cm(-2). The performance of the electrode was evaluated from the measurement of cell potential-current density plots. The electrode-kinetic parameters for oxygen reduction was evaluated from the results. The electrochemically active Pt surface area was measured by cyclic voltammetry.
Keywords:TECHNOLOGY