Influence of the porous transport layer properties on the mass and charge transfer in a segmented PEM electrolyzer

Advances in Oxygen Evolution Electrocatalysts for Proton Exchange Membrane Water Electrolyzers

“…In particular, these characteristics mainly affect the utilization of catalysts, gas diffusion, mass transfer, and interfacial contact, thus affecting cell performance. [ 288 ] First, studies have shown that a thinner PTL tends to show better performance due to reduced ohmic impedance and diffusion losses (Figure 20b). [ 289 ] It is worth noting that this conclusion needs to be based on the intact pore structure.…”

Performance analysis of proton exchange membrane fuel cell in automotive applications

“…While at 1.5A/cm², the rate is 28 µV/cell/h and 49µV/cell/h for the maximal current density of 1.9A/cm². As one might expect, the degradation is higher at a high current density than at a lower current density as the MEA could not provide enough active sites for electrochemical reaction at high current density [27].…”

Towards Non-Mechanical Hybrid Hydrogen Compression for Decentralized Hydrogen Facilities

“…For this reason, methods for producing hydrogen from renewable sources have been developed in recent years, making a significant contribution to sustainable development. Among these, water electrolysis has proven to be a valid solution, since it allows the production of hydrogen from water [10]. Whenever electricity is available at low cost, water electrolysis is already used worldwide for industrial applications of a few MW.…”

“…It is worth mentioning that a high-pressure water electrolyzer may also be used as a preliminary stage of the adsorption-desorption compressor. These devices typically operate at 353 K [10], so that the waste heat from the electrolyzer may be used to heat the adsorption-desorption compressor, thus improving the overall system efficiency.…”