Results 61 to 70 of about 25,227 (196)

Analysis of gas diffusion layer and flow-field design in a PEMFC using neutron radiography

, 2008
A carbon-cloth gas diffusion layer (GDL) displays better performance than a carbon-paper GDL under humidified conditions. A straight flow field displays better performance than a serpentine flow field.
Yutaka Tasaki, Ikezoe, Keigo, Lehmann, Eberhard, Denis Kramer, Koudai Yoshizawa, Scherer, Günther, Eberhard H. Lehmann, Tasaki, Yutaka, Keigo Ikezoe, Yoshizawa, Koudai, Kramer, Denis, Günther G. Scherer   +11 more
core   +1 more source

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, Volume 11, Issue 11, 5 June 2026.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

Contact resistance between gas diffusion layer and catalyst layer of PEM fuel cell

, 2008
In this study, the electrical contact resistance between gas diffusion layer (GDL) and catalyst layer (CL) on an electrolyte membrane was experimentally evaluated as a function of compression.
Himanen, Olli, Nitta, Iwao, Mikkola, Mikko   +2 more
core   +1 more source

Nanotomography based study of gas diffusion layers [PDF]

, 2010
Nano-computed tomography (nanoCT) was used for non-invasive 3D visualization and characterization of porous gas diffusion layer (GDL) for polymer electrolyte membrane fuel cells (PEMFC).
Liu, Y, Ostadi, H, Hossein Ostadi (7121456), Rama, P, Kyle Jiang (1410325), Pratap Rama (7119353), Chen, R, Rui Chen (1257861), Yu Liu (6938), Xiaoxian Zhang (1521013), Zhang, X, Jiang, Kyle   +11 more
core   +1 more source

Carboxylated Carbon Nanotube‐Supported Copper‐Indium Bimetallic Catalysts for Electroreduction of CO2 to Dimethyl Carbonate via Membrane‐Free Cascade Electrosynthesis

Carbon and Hydrogen, Volume 28, Issue 2, Page 226-243, June 2026.
A membrane‐free cascade electrocatalytic system with Cu100In50‐(COOH)CNTs converts CO2 to CO and then couples with alcohols to yield DMC (52.3% FE) and DEC (27.8% FE) via carboxyl‐Cu‐In synergistic regulation of intermediate adsorption. ABSTRACT Under the background of the dual carbon strategy, upgrading CO2 electroreduction from C1 products to high ...
Youjia Wang, Xin Ma, Yuxin Tian, Wenchao Wang, Bochen Tian, Yansheng Liu, Junwei Hou   +6 more
wiley   +1 more source

Performance of PBF‐Printed Micro‐Channel Bipolar Plates as a Function of Flow‐Field Parameters and Plane Area

Fuel Cells, Volume 26, Issue 3, June 2026.
ABSTRACT SUS 316L bipolar plates (BPPs) with rectangular micro‐channels for polymer electrolyte membrane fuel cell (PEMFC) were fabricated using powder bed fusion (PBF) technology, and the effects of flow‐field structure parameters (channel width, rib width, and channel depth) on fuel cell performance were analyzed.
Chul Kyu Jin, Sung Hwan Bae, Min Sik Lee
wiley   +1 more source

Digital Volume Imaging of the PEFC Gas Diffusion Layer

, 2010
The gas diffusion layer (GDL) plays a key role in the overall performance/durability of a polymer electrolyte fuel cell (PEFC). Of profound importance, especially in the context of water management and flooding phenomena, is the influence of the ...
Eunkyoung Shim, Rodney L. Borup, Partha P. Mukherjee, Rangachary Mukundan   +3 more
core   +1 more source

Drive Cycle‐Based Accelerated Stress Tests for Heavy Duty Fuel Cell Vehicle Applications

Fuel Cells, Volume 26, Issue 3, June 2026.
ABSTRACT Fuel cells in heavy‐duty vehicles are susceptible to degradation and are significantly influenced by driving patterns. Accelerated stress tests (ASTs) are useful to identify these degradation mechanisms and aid the development of degradation‐resistant control strategies for FC stacks.
Gnana Lahari Kothala, David Sedarsky, Felix Haberl, Gustavo Hindi   +3 more
wiley   +1 more source

X-ray computed tomography of gas diffusion layers of PEM fuel cells: Segmentation of the microporous layer

, 2013
In proton exchange membrane fuel cells (PEMFC), gas diffusion layers (GDL) are crucial for fuel cell performance and more specifically for the removal of the product water where the micro porous layer (MPL) as one component of the GDL with a plays a ...
DIDAS Stephan, PFRANG Andreas, TSOTRIDIS Georgios   +2 more
core   +1 more source

Mesoporous Copper‐Based Metal‐Organic Framework Flakes as a Promising Platform for Electrosynthesis of Ethylene from Carbon Dioxide

Small Science, Volume 6, Issue 6, June 2026.
We report a one‐pot green synthesis of a flake‐like, mesoporous Cu‐based metal‐organic framework for CO2 conversion. Its structure enhances mass transport and active‐site accessibility, promoting C–C coupling. In a zero‐gap cell, it achieves 51.6% C2H4 selectivity at 200 mA cm–2.
Mitra Bagheri, Mirtha A. O. Lourenço, Micaela Castellino, Silvia Nappini, Felicia Di Costola, Julien K. Dangbegnon, Elena Magnano, Luís Mafra, Fabrizio Pirri, Adriano Sacco, Juqin Zeng   +10 more
wiley   +1 more source