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

Figure 9

The distribution of dimensionless overpotential at A-A′ with different thickness and specific area of catalyst layer; 𝑇=333 K, 𝑐⁰_M=1.0 M, 𝐸⁰=0.4 V, 𝜅_e=3.4 Ω⁻¹ m⁻¹, 𝐷_e=3.04×10⁻¹⁰ m² s⁻¹, solid line: 𝑙=10 μm, 𝑎=1.0×10⁵ m⁻¹, dash line: 𝑙=25 μm, 𝑎=1.0×10⁵ m⁻¹, dot line: 𝑙=50 μm, 𝑎=1.0×10⁵ m⁻¹, dash dot line: 𝑙=10 μm, 𝑎=1.0×10⁶ m⁻¹.