Segmented tomographic evaluation of structural degradation of carbon support in proton exchange membrane fuel cells

The variation of the three-dimensional (3D) structure membrane electrode a fuel cell during proton exchange cycling involves corrosion/compaction carbon support. increasing degradation continuously reduces electrocatalytic performance cells (PEM-FCs). This phenomenon can be explained by performing 3D tomographic analysis at nanoscale. However, conventional approaches which present limited experimental feasibility, cannot perform such evaluation and have not provided sufficient structural information with statistical significance thus far. Therefore, reliable methodology is required for geometrical structure. Here, we propose segmented approach employs pore network that enables visualization parameters corresponding to porous high resolution. utilized evaluate after in terms local surface area, size distribution, their networking. These body were demonstrated substantially reduced owing cycling-induced degradation. deeper understanding supports contribute development stable PEM-FC electrodes.