Results 41 to 50 of about 38,404 (248)
ECS Transactions, 2010 The durability of PEM fuel cells is a major barrier to the commercialization of these systems for stationary and transportation power applications. While significant progress has been made in understanding degradation mechanisms and improving materials, further improvements in durability are required to meet commercialization targets.
Rodney L. Borup, Rangachary Mukundan
openaire +2 more sources
Ignition and Front Propagation in Polymer Electrolyte Membrane Fuel Cells [PDF]
, 2006 Water produced in a Polymer Electrolyte Membrane (PEM) fuel cell enhances membrane proton conductivity; this positive feedback loop can lead to current ignition.
Benziger, J. B. +3 more
core
Heterointerface‑Enabled Electrocatalysis for Efficient Energy Conversion
Advanced Science, EarlyView.Functionally distinct A/B materials can be integrated at the nanoscale to create customized heterointerfaces with tunable band alignment and charge redistribution, providing fast electron and ion transport channels as well as cooperative dual active sites.
Liuru Fang +3 more
wiley +1 more source
Environmental Impact of High Altitudes on the Operation of PEM Fuel Cell Based UAS [PDF]
, 2018 Fuel cell is a device that converts the chemical energy in the reactants into the electrical energy after steps of sequential electrochemical processes with no significant impact on the environment.
Ali, Rashid +2 more
core +2 more sources
Advanced Science, EarlyView.A CCM‐based architectural strategy is introduced for high‐temperature PEM fuel cells, enabling MPL‐free carbon paper gas diffusion layers via decal‐transfer processing. By co‐engineering the CCM, GDL, and a G‐foam flow field, oxygen transport is enhanced while phosphoric‐acid leakage is suppressed, resulting in high power density and stable operation ...
Seongmin Cho +6 more
wiley +1 more source
Alexandria Engineering Journal, 2012 Proton exchange membrane fuel cell (PEM) generates electrical power from air and from hydrogen or hydrogen rich gas mixtures. Therefore, there is an increasing interest in converting current hydrocarbon based marine fuels such as natural gas, gasoline ...
Yousri M.A. Welaya +2 more
doaj +1 more source
Revue des Énergies Renouvelables, 2022 In this study we investigated the properties of the species diffusion layer (ADL) affect the optimal performance of the electrode [1]. Diffusion layers (DL) are porous media allowing reactive gases and liquids to move from distribution channels to ...
Mihoub Medkour +2 more
doaj +1 more source
Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries
Advanced Energy Materials, EarlyView.This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu +5 more
wiley +1 more source
FuelsThis work provides an extended description of the tools developed in the Wolfram Mathematica environment to characterize proton exchange membrane (PEM) fuel cells.
Angelo Leto, Giuseppe Di Lorenzo
doaj +1 more source
Frontiers in Energy Research, 2014 In this study, a significant number of experimental tests to PEM fuel cells were conducted to investigate the effect of gas flow fields on fuel cell performance.
Hong eLiu +4 more
doaj +1 more source