Results 11 to 20 of about 25,227 (196)

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. Gas Liquid Displacement Porometry (GLDP) and Liquid Extrusion Porometry (LEP) have been used to obtain their pore ...
René I. Peinador, Oumaima Abba, José I. Calvo   +2 more
openaire   +4 more sources

Liquid Water Characteristics in the Compressed Gradient Porosity Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells Using the Lattice Boltzmann Method

Energies, 2023
The mitigation of water flooding in the gas diffusion layer (GDL) at relatively high current densities is indispensable for enhancing the performance of proton exchange membrane fuel cells (PEMFCs).
Song Yan, Mingyang Yang, Chuanyu Sun, Sichuan Xu   +3 more
semanticscholar   +1 more source

Construction of 3D copper-chitosan-gas diffusion layer electrode for highly efficient CO2 electrolysis to C2+ alcohols

Nature Communications, 2023
High-rate electrolysis of CO2 to C2+ alcohols is of particular interest, but the performance remains far from the desired values to be economically feasible.
Jiahui Bi, Pengsong Li, Jiyuan Liu, Shuaiqiang Jia, Yong Wang, Qinggong Zhu, Zhimin Liu, B. Han   +7 more
semanticscholar   +1 more source

Lattice Boltzmann simulation of liquid water transport in gas diffusion layers of proton exchange membrane fuel cells: Impact of gas diffusion layer and microporous layer degradation on effective transport properties

Journal of Power Sources, 2023
high durability of each cell component. In this work, transport of liquid water through pristine and degraded gas diffusion layers (GDL) was simulated with a 3D Color-Gradient Lattice Boltzmann model.
Patrick Sarkezi-Selsky, Henrike Schmies, A. Latz, T. Jahnke   +3 more
semanticscholar   +1 more source

Hydrophobic 1-octadecanethiol functionalized copper catalyst promotes robust high-current CO2 gas-diffusion electrolysis

, 2021
The electrocatalytic reduction of CO2 presents a promising strategy in addressing environmental and energy crisis. Significant progress has been achieved via CO2 gas diffusion electrolysis, to react at high selectivity and high rate.
Liu, Y, Wang, X, Dai, S, Xue, L, Wu, X, Liu, P, Xu, B, Yang, H   +7 more
core   +1 more source

Optimization of gas diffusion layer in high temperature PEMFC with the focuses on thickness and porosity

, 2021
Wide ranges of thickness (e.g. 100–400 μm) and porosity (e.g. 30–70%) of gas diffusion layer (GDL) in a high temperature proton exchange membrane fuel cell (HT-PEMFC) are available in the literature.
Lingchao Xia, M. Ni, Qijiao He, Qidong Xu, Chun-Man Cheng   +4 more
semanticscholar   +1 more source

Impact of gas diffusion layers (GDLs) on MEA performance in PEFCs

Energy Procedia, 2012
AbstractWe examined the effect of the hydrophobic/hydrophilic nature of the microporous layer (MPL) on membrane–electrode assembly (MEA) performance. The MEA using a hydrophilic MPL showed much better performance in a wide range of pressure and humidity conditions than that using a hydrophobic MPL.
Tanuma, Toshihiro, Kinoshita, Shinji
openaire   +1 more source

Numerical study and prediction of water transfer in gas diffusion layer of proton exchange membrane fuel cells under vibrating conditions

International Journal of Energy Research, 2022
Proton exchange membrane fuel cells (PEMFCs) operate with vibrations that have a significant effect on the transfer of water and gas in the gas diffusion layer (GDL), as well as the conduction of electrons.
Yang Yu, Sheng Chen
semanticscholar   +1 more source

Effects of Electrode Support Structure on Electrode Microstructure, Transport Properties, and Gas Diffusion within the Gas Diffusion Layer

ACS Omega, 2022
The effects of gas diffusion layer (GDL) and electrode microstructure, which influence the catalyst layer and catalyst–membrane interface on the performance of a membrane electrode assembly (MEA) for gas-phase electrolysis and the separation of CO2 were ...
Nicholas Schwartz, J. Harrington, Kirk J. Ziegler, P. Cox   +3 more
semanticscholar   +1 more source

Electrodeposition of Cu-based bimetallic catalyst over Gas Diffusion Layer (GDL) for the electrochemical conversion of CO2

RSC Electrochem 2023, 2023
The Electrochemical Reduction of CO2 (CO2RR) is a complex multi-step process with the possibility of numerous adsorbed intermediates depending on process conditions. Developing an affordable electrocatalyst capable of reducing CO2 in a suitable and environmentally sound electrolyte under efficient operating conditions to produce high-valur carbon-based
openaire   +2 more sources