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

Figure 17

Efficiency factor for different thickness and specific area of the catalyst layer; 𝑇=333 K, 𝑐⁰_M=1.0 M, 𝜅_e=3.4 Ω⁻¹ m⁻¹, 𝐷_e=3.04×10⁻¹⁰ m² s⁻¹, (⚪) experiment data, (∗) dimensionless limiting current density, 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=25 μm, 𝑎=3.75×10⁴ m⁻¹, dash dot dot line: 𝑙=10 μm, 𝑎=118417.0 m⁻¹.