Transient Response and Steady-State Analysis of the Anode of Direct Methanol Fuel Cells Based on Dual-Site Kinetics

Figure 11

The distribution of dimensionless overpotential at particular 𝑋 coordinates of the catalyst layer 𝑇=333 K, 𝑐⁰_M=1.0 M, 𝑙=10 μm, 𝑎=1.0×10⁵ m⁻¹, 𝐸⁰=0.4 V, 𝜅_e=3.4 Ω⁻¹ m⁻¹, 𝐷_e=3.04×10⁻¹⁰ m² s⁻¹, lines A-A′ to F-F′ are from up to down.