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Method and characterisation Nafion membrane should not be placed in solution where the temperature exceeds 90°C to avoid degradation. The following figure shows the procedures to activate the membrane. Nafion 117 6.5cm2 DI water (100°C) 30 minutes 1M H2O2 (80°C) 30 minutes 1M H2SO4 (80°C) 30 minutes Figure 3.23 Nafion 117 membrane activation process for DMFC before the hot press. 3.4.6 MEA Fabrication and Thermal Compression (hot press) The MEA, anode and cathode were fabricated in-house. This includes the GDL layer ink, anode catalyst ink, cathode catalyst ink and the activation of Nafion membrane. The following explains the steps made to produce the MEA, Anode electrode was placed on a stainless steel plate facing the upward. Activated membrane was placed on the top of the anode and centered. On top of activated membrane, cathode electrode was placed facing downward, where both electrodes were facing each other and the activated membrane comes in between. The other stainless steel plate was placed on the cathode to sandwich the MEA. Sirhan AL-Batty Page 101PDF Image | Membrane Electrode Assembly Modification by Zeolite and Graphene Oxide
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