Influence of the microporous layer on carbon corrosion in the catalyst layer of a polymer electrolyte membrane fuel cell

A review of the gas diffusion layer in proton exchange membrane fuel cells: Durability and degradation

“…Spernjak et al [91][92][93] compared cathode GDLs with and without an MPL by accelerated stress testing for carbon corrosion in a segmented PEM fuel cell under the condition of 1.3 V for 7 h. They quantified the carbon corrosion by measuring the CO 2 evolution by a non-dispersive infrared sensor during the test. The results showed that the carbon corrosion of the catalyst layer was lower with the existence of MPL.…”

Effects of pore size gradient in the substrate of a gas diffusion layer on the performance of a proton exchange membrane fuel cell

“…Although the previous experiments provided good qualification of cell performance, EIS was also analyzed because it can differentiate clearly the main factors inducing cell performance loss, such as kinetic resistance, ohmic resistance, and mass transport resistance [31][32][33][34]. In Fig.…”

“…9, the left x-intercept at the high frequency end indicates the ohmic resistance, and the distance between two x-intercepts at each case shows the sum of kinetic and mass transport resistances. The graph shape at each case mostly consists of two circles from the kinetic resistance and the mass transport resistance for oxygen reduction [32][33][34]. The second circle, from the oxygen transport resistance, starts to be visible after 0.8 A/cm 2 as concentration loss becomes more dominant.…”

Investigation of degradation effects in polymer electrolyte fuel cells under automotive-related operating conditions

“…Furthermore, the oxidation of carbon within the GDL is also possible, especially within the micro porous layer (MPL) which is in direct contact to the electrode. Spernjak et al [22] investigated the influence of the MPL on carbon corrosion in the electrode using an accelerated stress test (AST) for carbon support corrosion. The contribution of the carbon corrosion within the MPL to the total amount of carbon corrosion was found to be in the range between 10 and 15% over short corrosion times [22].…”

“…Spernjak et al [22] investigated the influence of the MPL on carbon corrosion in the electrode using an accelerated stress test (AST) for carbon support corrosion. The contribution of the carbon corrosion within the MPL to the total amount of carbon corrosion was found to be in the range between 10 and 15% over short corrosion times [22]. The loss of ECSA induced by platinum agglomeration and carbon corrosion also increases the internal cell resistivity [22].…”