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Revealing the Oxygen Transport Challenges in Catalyst Layers in Proton Exchange Membrane Fuel Cells and Water Electrolysis [PDF]

open access: yesNano-Micro Letters
Highlights Mechanisms of the bulk and local oxygen transport in cathode catalyst layers (CCLs) in proton exchange membrane fuel cells (PEMFCs) are presented.
Huiyuan Li   +8 more
doaj   +2 more sources

Grooved electrodes for high-power-density fuel cells

open access: yesNature Energy, 2023
Proton exchange membrane fuel cells (PEMFCs) are leading candidates to decarbonize the transport sector, but widespread deployment will require improvements in lifetime, fuel economy and cost.
Chung Lee   +9 more
semanticscholar   +1 more source

Nanofiber-Based Oxygen Reduction Electrocatalysts with Improved Mass Transfer Kinetics in a Meso-Porous Structure and Enhanced Reaction Kinetics by Confined Fe and Fe3C Particles for Anion-Exchange Membrane Fuel Cells

open access: yesEnergies, 2022
The development of high-performance nonprecious metal catalysts for oxygen reduction reactions is critical for the commercialization of fuel cells. In this paper, we report a non-precious catalyst with high-performance, in which Fe and Fe3C is embedded ...
Wenzhe Luo   +6 more
doaj   +1 more source

Adaptive Thermal Control of Cell Groups to Extend Cycle Life of Lithium-Ion Battery Packs

open access: yesApplied Sciences, 2023
We present a novel approach for a battery management system in which adaptive thermal control is employed to balance the capacities of individual groups of cells within a lithium-ion battery pack.
Wesley D. Connor   +2 more
doaj   +1 more source

Atomically dispersed Pt and Fe sites and Pt–Fe nanoparticles for durable proton exchange membrane fuel cells

open access: yesNature Catalysis, 2022
Proton exchange membrane fuel cells convert hydrogen and oxygen into electricity without emissions. The high cost and low durability of Pt-based electrocatalysts for the oxygen reduction reaction hinder their wide application, and the development of non ...
Fei Xiao   +17 more
semanticscholar   +1 more source

Novel Nafion/Graphitic Carbon Nitride Nanosheets Composite Membrane for Steam Electrolysis at 110 °C

open access: yesMembranes, 2023
Hydrogen is expected to have an important role in future energy systems; however, further research is required to ensure the commercial viability of hydrogen generation.
Taipu Chen   +4 more
doaj   +1 more source

Self-Supporting NiFe Layered Double Hydroxide “Nanoflower” Cluster Anode Electrode for an Efficient Alkaline Anion Exchange Membrane Water Electrolyzer

open access: yesEnergies, 2022
The development of an efficient and durable oxygen evolution reaction (OER) electrode is needed to solve the bottleneck in the application of an anion exchange membrane water electrolyzer (AEMWE).
Dandan Guo   +4 more
doaj   +1 more source

Experimental study and simulations of hydrogen cooling effectiveness for aviation PEM fuel cells

open access: yesScientific Reports, 2023
Proton exchange membrane fuel cells (PEMFCs) are seen as one possible future means of driving the change towards a zero-emission society. In a civil aircraft, fuel cell systems can have multiple potential benefits, such as reduced noise, lowered ...
Till Lennart Kösters   +4 more
doaj   +1 more source

Recent Advances in Electrocatalysts for Proton Exchange Membrane Fuel Cells and Alkaline Membrane Fuel Cells

open access: yesAdvances in Materials, 2021
The rapid progress of proton exchange membrane fuel cells (PEMFCs) and alkaline exchange membrane fuel cells (AMFCs) has boosted the hydrogen economy concept via diverse energy applications in the past decades.
Fei Xiao   +12 more
semanticscholar   +1 more source

Nitrate Reduction Reaction on Zr-Doped TiO2 (101) Surfaces Investigated by First-Principles Calculations

open access: yesCrystals, 2023
Electrochemical nitrate reduction to ammonia is an efficient strategy for nitrate removal and ammonia production in ambient conditions. TiO2 is a promising electrocatalyst for such a reaction, but chemical doping is still needed to further improve the ...
Xiyu He   +4 more
doaj   +1 more source

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