TY - GEN
T1 - Scattering dynamics of oxygen molecules on nafion membrane
AU - Nakauchi, Masataka
AU - Mabuchi, Takuya
AU - Kinefuchi, Ikuya
AU - Takeuchi, Hideki
AU - Tokumasu, Takashi
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/11/15
Y1 - 2016/11/15
N2 - The scattering behaviors of oxygen molecules on a Nafion membrane, which is a typical polymer electrolyte membrane used in polymer electrolyte fuel cells, have been investigated using molecular dynamics simulations. We have evaluated the probability density functions of the translational energy and scattering angle of the scattered oxygen molecules for a wide range of incident conditions and water contents. It was found that the translational energy of oxygen molecules does not accommodate with the Nafion membrane during the collision, and oxygen molecules are reflected diffusely on the surface. Two types of collision behaviors, i.e., single and multiple collisions, were observed in the simulations. Increasing the normal component of the incident energy and the water content results in the longer residence time on the ionomer surface.
AB - The scattering behaviors of oxygen molecules on a Nafion membrane, which is a typical polymer electrolyte membrane used in polymer electrolyte fuel cells, have been investigated using molecular dynamics simulations. We have evaluated the probability density functions of the translational energy and scattering angle of the scattered oxygen molecules for a wide range of incident conditions and water contents. It was found that the translational energy of oxygen molecules does not accommodate with the Nafion membrane during the collision, and oxygen molecules are reflected diffusely on the surface. Two types of collision behaviors, i.e., single and multiple collisions, were observed in the simulations. Increasing the normal component of the incident energy and the water content results in the longer residence time on the ionomer surface.
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U2 - 10.1063/1.4967615
DO - 10.1063/1.4967615
M3 - Conference contribution
AN - SCOPUS:85008945740
T3 - AIP Conference Proceedings
BT - 30th International Symposium on Rarefied Gas Dynamics, RGD 2016
A2 - Struchtrup, Henning
A2 - Ketsdever, Andrew
PB - American Institute of Physics Inc.
T2 - 30th International Symposium on Rarefied Gas Dynamics, RGD 2016
Y2 - 10 July 2016 through 15 July 2016
ER -