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

Figure 8

Distribution of dimensionless overpotential at 𝑙=25 μm, 𝑎=1.0×10⁵ m⁻¹, 𝐸⁰=0.5 V, 𝜅_e=3.4 Ω⁻¹ m⁻¹, 𝐷_e=3.04×10⁻¹⁰ m² s⁻¹; (a) 𝑇=303 K, 𝑐⁰_M=1.0 M; (b) 𝑇=333 K, 𝑐⁰_M=1.0 M; (c) 𝑇=363 K, 𝑐⁰_M=1.0 M; (d) 𝑇=333 K, 𝑐⁰_M=0.5 M.