Results 231 to 240 of about 18,191 (257)
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Geometric Effects of Triple Phase Boundary in Fuel Cell Kinetics
ECS Meeting Abstracts, 2009Abstract not Available.
Young Beom Kim +3 more
openaire +1 more source
JETP Letters, 2020
In this work, the wetting phase transition of grain boundaries (GBs) and their triple junctions (GB TJs) by the second solid phase in the magnesium-based alloy EZ33A is studied. The condition for complete wetting for the GB TJ ( $$\left({{\sigma _{{\rm{GB}}}}>\sqrt3{\sigma _{{\rm{SS}}}}}\right)$$ ) is weaker than that for GBs (σGB > 2σSS).
Straumal, A. B. +4 more
openaire +2 more sources
In this work, the wetting phase transition of grain boundaries (GBs) and their triple junctions (GB TJs) by the second solid phase in the magnesium-based alloy EZ33A is studied. The condition for complete wetting for the GB TJ ( $$\left({{\sigma _{{\rm{GB}}}}>\sqrt3{\sigma _{{\rm{SS}}}}}\right)$$ ) is weaker than that for GBs (σGB > 2σSS).
Straumal, A. B. +4 more
openaire +2 more sources
Triple-Phase Boundary and Surface Transport in Mixed Conducting Patterned Electrodes
Journal of The Electrochemical Society, 2008The mathematical framework required to account for a triple-phase boundary (TPB) and the accompanying surface transport was added to a two-dimensional numerical model of a mixed conducting thin film by considering appropriate kinetic rate and mass-transport expressions.
Matthew E. Lynch +3 more
openaire +1 more source
Geometric Effects of Triple Phase Boundary in Solid Oxide Fuel Cells
ECS Transactions, 2009This paper describes the fabrication and testing of a model electrode to study geometric effects at well-defined triple phase boundaries (TPB) in solid oxide fuel cells (SOFC), using silica particle masking and Langmuir-Blodgett deposition. Electrochemical behavior of dense platinum cathodes that were patterned into close-packed circular openings of ...
Young Beom Kim +3 more
openaire +1 more source
Cyclic Supersaturation and Triple Phase Boundary Dynamics in Germanium Nanowire Growth
The Journal of Physical Chemistry C, 2011Video-rate environmental transmission electron microscopy of Au-catalyzed chemical vapor deposition of Ge nanowires shows that growth kinetics are linked to an oscillatory behavior at the liquid−solid interface near the triple phase boundary (TPB), where the nanowire surface consists of an oblique facet.
A. D. Gamalski, C. Ducati, S. Hofmann
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Operando Magnetic Resonance Imaging for Visualizing Electrochemical Triple‐Phase Boundary
Angewandte Chemie International EditionAbstract The triple‐phase boundary (TPB) is a complex interface where gas, liquid, and solid phases converge, crucially regulating the efficiency and performance of many electrochemical devices including fuel cells and batteries.
Wen‐Long Jiang +15 more
openaire +2 more sources
Development of a Model for a Triple Phase Boundary in Nano-Space with Mesoporous Carbon (MC)
ECS Meeting Abstracts, 2008Abstract not Available.
Akari Hayashi +3 more
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Ultrasound Mobilization of Liquid/Liquid/Solid Triple-Phase Boundary Redox Systems
The Journal of Physical Chemistry C, 2009Power ultrasound is used to “mobilize” droplets of 1,2-dichloroethane (DCE) on a glassy carbon electrode surface in an aqueous electrolyte environment.
John D. Watkins +2 more
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Stress-Induced Changes to the Triple-Point Phase Boundary of the Niobium-Deuterium System
Journal of Phase Equilibria and Diffusion, 2007The effects of mechanical stress, due to cold rolling, on the triple-point phase equilibrium in the niobium-deuterium system have been investigated using differential scanning calorimetry. Both unstressed and stressed foil samples of niobium-deuterium were analyzed over the temperature range 323 to 398 K.
Joseph Bulak +4 more
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The Journal of Physical Chemistry Letters
In the anodic catalyst layer of a proton-exchange membrane (PEM) water electrolyzer, the triple-phase boundary (TPB) is mainly distributed on the surface of ultrafine iridium-based catalysts encapsulated by the ionomer within the catalyst-ionomer agglomerate.
Shu Yuan +10 more
openaire +2 more sources
In the anodic catalyst layer of a proton-exchange membrane (PEM) water electrolyzer, the triple-phase boundary (TPB) is mainly distributed on the surface of ultrafine iridium-based catalysts encapsulated by the ionomer within the catalyst-ionomer agglomerate.
Shu Yuan +10 more
openaire +2 more sources