Quantitative evaluation of solid oxide fuel cell porous anode microstructure based on focused ion beam and scanning electron microscope technique and prediction of anode overpotentials

A Simple Expression for the Tortuosity of Gas Transport Paths in Solid Oxide Fuel Cells’ Porous Electrodes

“…Berson et al [16] reported that Bruggeman correction, which was only valid for ε 0.6  , introduced big errors in low [15,[19][20][21][22][23][24][25][26][27], line + solid triangle symbols denote the results calculated by Equation (9), solid square symbols denote the results calculated by the 3D sphere packing model [17]. Figure 4 shows the dependence of fpε, τqp" D eff {D 0 q on porosity.…”

An afterburner-powered methane/steam reformer for a solid oxide fuel cells application

“…The anode and cathode pore microstructure parameters are taken from the works of Kishimoto [8] and Gostovic [5], respectively. Both of the models presented above are conjugated (see Fig.…”

Towards the 3D Modelling of the Effective Conductivity of Solid Oxide Fuel Cell Electrodes – Validation against experimental measurements and prediction of electrochemical performance

“…The average particle/pore sizes were quantified with the mean-intercept method (MIL) [31]. A more detailed description of the procedure used for imaging, image processing and quantification can be found elsewhere [11,17,24].…”

“…The resistor network is often drawn from randomly packed electronic and ionic spherical particles in which one particle is essentially represented by one vertex in the resistor network, and each vertex is assigned a resistance to represent a particular phase in an SOFC electrode. Recently, the 3D imaging of experimental SOFC electrode microstructures has been made possible through focused ion beam-scanning electron microscope (FIB-SEM) or X-ray computed tomography (XCT) techniques [8][9][10][11][12][13][14]36]. This has in turn further promoted the development of modeling methods to derive effective conductivities based on complex real 3D microstructures.…”