Results 51 to 60 of about 25,227 (196)
This review highlights how in situ electrochemical atomic force microscopy (EC‐AFM) bridges materials science and electrochemistry by providing real‐time, nanoscale visualization of catalyst dynamics during CO2 reduction. By uncovering interfacial reconstruction, active‐site evolution, and structure–activity relationships across diverse catalysts, EC ...
Kaixuan Li +6 more
wiley +1 more source
Application of Magnesium Metal as Anode in Batteries
When used as an anode, magnesium metal offers several advantages, including a high volumetric capacity, environmental friendliness, abundant natural reserves, and a low tendency for dendrite growth. Battery types employing magnesium as the anode include rechargeable magnesium‐ion batteries, aqueous magnesium‐ion batteries, magnesium–air batteries, and ...
Yuanjie Zhang +5 more
wiley +1 more source
Gas Diffusion Layer with Metallic Ceramics for a Unitized Regenerative Fuel Cell
In this work, a gas diffusion layer (GDL) prepared with metallic ceramics TiC and TiN for a unitized regenerative fuel cell (URFC) was investigated.
陈国宝 +3 more
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Experimental Measurement of Effective Diffusion Coefficient in Gas Diffusion Layer/Microporous Layer in PEM Fuel Cells [PDF]
Accuracy in the effective diffusion coefficient of the gas diffusion layer (GDL)/microporous layer (MPL) is important to accurately predict the mass transport limitations for high current density operation of polymer electrolyte membrane (PEM) fuel cells.
Chan, Carl
core
An ordered cathode catalyst layer with efficient mass transport capability was developed based on the ALD of Pt onto VACNTs for high‐performance ultra‐low Pt loading PEMFC. The order‐structured cathode catalyst layer (CCL) has been considered the most promising solution to construct low‐cost proton exchange membrane fuel cells (PEMFCs) with an ultra ...
Jia Liu +8 more
wiley +1 more source
Effect of Water Presence within a Gas Diffusion Layer
Proton exchange membrane (PEM) fuel cells are showing promise as an energy source, but efficiency issues block commercialization. Research is currently focused on improving components of the fuel cell, and this report concerns gas transport when the gas ...
Bowe, Ryan C.
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Water Transport Characteristics of Gas Diffusion Layer in a PEM Fuel Cell [PDF]
A presentation addressing the following: Water transport in PEM Fuel Cells - a DoE Project 1. Gas Diffusion Layer--Role and Characteristics 2. Capillary Pressure Determinations of GDL Media 3. Gas Permeability Measurements of GDL Media 4. Conclusions and
Cole, J. Vernon, Damle, Ashok S.
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This study probes why polymer electrolyte membrane electrolyzers lose efficiency under different operating profiles. Using electrical tests, microscopy, and spectroscopy, Ti‐PTL passivation is established as the dominant cause for increased Ohmic resistance in samples aged under constant and triangular current profiles for 88 h.
Annik Bernhardt +13 more
wiley +1 more source
Electrodeposited MnCoOX and MnNiCoOX spinels on Ni foam are evaluated as binder‐free, platinum group metal‐free cathodes in direct ammonia fuel cells. MnCoOX matches and surpasses Pt in oxygen reduction performance while tolerating ammonia crossover, whereas Ni incorporation dilutes the active Co–Mn sites and degrades performance.
Mehmet Turan Görüryilmaz +10 more
wiley +1 more source
Template-directed fabrication of porous gas diffusion layer for magnesium air batteries
The uniform micropore distribution in the gas diffusion layers (GDLs) of the air-breathing cathode is very important for the metal air batteries. In this work, the super-hydrophobic GDL with the interconnected regular pores is prepared by a facile silica
Miao, He +5 more
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