3D characterization of diffusivities and its impact on mass flux and concentration overpotential in SOFC anode
In recent years great effort has been taken to understand the effect of gas transport on the
performance of electrochemical devices. This study aims to characterize the diffusion …
performance of electrochemical devices. This study aims to characterize the diffusion …
Molecular dynamics study of oxygen scattering behavior on perfluorosulfonic acid ionomer thin films
M Nakauchi, T Mabuchi, Y Yoshimoto… - The Journal of …, 2019 - ACS Publications
The scattering dynamics of oxygen molecules on perfluorosulfonic acid (PFSA) ionomer thin
films was investigated using molecular dynamic simulations. We constructed PFSA ionomer …
films was investigated using molecular dynamic simulations. We constructed PFSA ionomer …
[HTML][HTML] The Formation–Structure–Functionality Relationship of Catalyst Layers in Proton Exchange Membrane Fuel Cells
Understanding the relationship between the formation, structure, and functionality of catalyst
layers is crucial for designing catalyst layers with specific high-current-density operations. In …
layers is crucial for designing catalyst layers with specific high-current-density operations. In …
Evaluation of gas permeability in porous separators for polymer electrolyte fuel cells: Computational fluid dynamics simulation based on micro-x-ray computed …
Pore structures and gas transport properties in porous separators for polymer electrolyte fuel
cells are evaluated both experimentally and through simulations. In the experiments, the gas …
cells are evaluated both experimentally and through simulations. In the experiments, the gas …
Measurement of Helium and Xenon Knudsen permeability in graphite IG-11
JD Seelig, J Wilson, KL Walton, TK Ghosh… - Journal of Nuclear …, 2022 - Elsevier
Understanding the flow and diffusion (transport) of gases through nuclear graphite is of
interest in both the prismatic and pebble bed high-temperature gas reactors (HTGRs), for …
interest in both the prismatic and pebble bed high-temperature gas reactors (HTGRs), for …
Molecular Dynamics Analysis of the Scattering Phenomena of Oxygen Molecules on an Ionomer Surface in Catalyst Layer of Fuel Cell
K Mizuki, T Mabuchi, I Kinefuchi… - ECS Transactions, 2023 - iopscience.iop.org
The purpose of this study is to clarify the effect of surface diffusion, which is the behavior of
gas molecules on ionomer thin films, on the transport properties of oxygen in fuel cell …
gas molecules on ionomer thin films, on the transport properties of oxygen in fuel cell …
Gas-Surface Interaction Study of Oxygen Molecules on Ionomer Surface in Catalyst Layer
M Nakauchi, T Mabuchi, T Hori, Y Yoshimoto… - ECS …, 2017 - iopscience.iop.org
We investigated the gas-surface interaction between oxygen molecules and ionomer
surface using molecular dynamics simulations because the scattering phenomena of gas …
surface using molecular dynamics simulations because the scattering phenomena of gas …
Analysis of the effect of surface diffusion on effective diffusivity of oxygen in catalyst layer by direct simulation Monte Carlo
T Hori, T Mabuchi, I Kinefuchi, T Tokumasu - ECS Transactions, 2021 - iopscience.iop.org
We analyzed the transport properties of oxygen molecules using the Monte Carlo method.
We obtained the effective diffusion coefficient of oxygen molecules in a catalyst layer of …
We obtained the effective diffusion coefficient of oxygen molecules in a catalyst layer of …
[PDF][PDF] Analysis of the oxygen scattering behaviour on ionomer surface in catalyst layer of PEFC
M Nakauchi, T Mabuchi, I Kinefuchi… - Renewable Energy and …, 2016 - icrepq.com
Mass transport significantly affects the reaction efficiency of polymer electrolyte fuel cells. In
particular, the oxygen transport in catalyst layers is important for the improvement of its …
particular, the oxygen transport in catalyst layers is important for the improvement of its …
Molecular Dynamics Simulation of Scattering and Surface Diffusion of Oxygen Molecules on Ionomers in Catalyst Layers of PEFCs
T Hori, T Mabuchi, I Kinefuchi, T Tokumasu - ECS Transactions, 2022 - iopscience.iop.org
We analyzed the influence of the interaction between oxygen molecules and ionomer
surfaces on the overall oxygen transport in the catalyst layer of polymer electrolyte fuel cells …
surfaces on the overall oxygen transport in the catalyst layer of polymer electrolyte fuel cells …