Results 1 to 10 of about 53,287 (216)
Systematic screening of gas diffusion layers for high performance CO2 electrolysis [PDF]
Communications Chemistry, 2023 For economic viability, CO2 electrolyzers must meet a range of criteria such as low cell voltage, high current density, high product selectivity and long-term stability—which continues to be a challenge.
Angelika Anita Samu +4 more
doaj +2 more sources
Asymmetric gas diffusion layers for improved water management in PGM-free electrodes [PDF]
HeliyonProton-exchange-membrane fuel cells (PEMFCs) offer a long-term, carbon-emission free solution to the energy needs of the transportation sector. However, high cost continues to limit PEMFC commercialization.
Tanvir Alam Arman +5 more
doaj +2 more sources
Characterization of Commercial Gas Diffusion Layers (GDL) by Liquid Extrusion Porometry (LEP) and Gas Liquid Displacement Porometry (GLDP) [PDF]
Membranes, 2022 This works aims to study the porous characterization of several commercial Gas Diffusion Layers (GDL). Three carbon-based porous GDL featuring a highly rigid microstructure of interconnected pores of several manufacturers were analyzed.
René I. Peinador +2 more
doaj +2 more sources
Experimental study of gas diffusion layers nonlinear orthotropic behavior [PDF]
E3S Web of Conferences, 2022 One of the most important components of PEMFC is the gas diffusion layer (GDL), owing to its key role in the reactant diffusion, water management, thermal and electron conductivity.
Ouerghemmi Marwa +2 more
doaj +1 more source
Surface Strengthening of High-Alloyed Martensitic Steel by Staged Nitriding [PDF]
MATEC Web of Conferences, 2021 Gas nitriding processes with cyclical rotation of ammonia and ammonia/air atmospheres are suggested for surface strengthening of martensitic Cr-Ni-W-Mo-V steel. One-, two-, and three-staged processes were studied differing by gas atmospheres at the final
Bibikov Petr +3 more
doaj +1 more source
Tuning the Morphology and Gas Separation Properties of Polysulfone Membranes
Membranes, 2022 The present work deals with the modification of casting solutions for polysulfone gas separation membranes fabricated by wet-phase inversion. The aim was to fabricate membranes with thin gas separation layers below one micrometer of thickness and a ...
Steven Kluge +2 more
doaj +1 more source
Energies, 2023 Improving mass transfer in gas diffusion layers is critical to achieving high-performance proton-exchange membrane fuel cells (PEMFCs). Leaks through the interface between the gas and the membrane electrode assembly frame have been widely investigated ...
Siwen Gu +3 more
doaj +1 more source
Flow Characteristics of Fibrous Gas Diffusion Layers Using Machine Learning Methods
Applied Sciences, 2022 The material characteristics of gas diffusion layers are relevant for the efficient operation of polymer electrolyte fuel cells. The current state-of-the-art calculates these using transport simulations based on their micro-structures, either ...
Dieter Froning +3 more
doaj +1 more source
Energies, 2023 A new three-dimensional numerical model of a polymer electrolyte fuel cell (PEFC) with a single straight channel was developed to primarily investigate the important impact of the double-sided microporous layer (MPL) coating on the overall performance of
Isaac C. Okereke +5 more
doaj +1 more source
Frontiers in Energy Research, 2023 Accurately predicting oxygen mass transport resistance and current distribution in fuel cells requires significant knowledge of oxygen diffusion coefficients in both in-plane and through-plane directions.
Keguang Yao +7 more
doaj +1 more source