An electrochemical device for the Knudsen and bulk diffusivity measurement in the anodes of solid oxide fuel cells

Luhan Ye; Weiqiang Lv; Yiwu Mao; Pengfei Yan; Weidong He

doi:10.1016/j.ijhydene.2014.07.050

An electrochemical device for the Knudsen and bulk diffusivity measurement in the anodes of solid oxide fuel cells

Luhan Ye
, Weiqiang Lv
, Yiwu Mao
, Pengfei Yan
, Weidong He^*

^*Corresponding author for this work

University of Electronic Science and Technology of China
China Academy of Engineering Physics
Vanderbilt University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Both Knudsen and bulk diffusion mechanisms are taken into account in the anode diffusivity measurement in solid oxide fuel cells (SOFCs). The correlation of anode parameters including pore size, porosity, tortuosity and thickness with the effective diffusivity is then explored analytically. Through quantitative analysis, limiting current density and concentration polarization are investigated with various SOFC anode structures. Our work improves the understanding of the gas diffusion and electrochemical performances of SOFCs with various electrodes.

Original language	English
Pages (from-to)	15057-15062
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	27
DOIs	https://doi.org/10.1016/j.ijhydene.2014.07.050
State	Published - 12 Sep 2014
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Concentration polarizations
Effective diffusivities
Fuel cells
Limiting current densities
Pore sizes

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10.1016/j.ijhydene.2014.07.050

Cite this

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title = "An electrochemical device for the Knudsen and bulk diffusivity measurement in the anodes of solid oxide fuel cells",

abstract = "Both Knudsen and bulk diffusion mechanisms are taken into account in the anode diffusivity measurement in solid oxide fuel cells (SOFCs). The correlation of anode parameters including pore size, porosity, tortuosity and thickness with the effective diffusivity is then explored analytically. Through quantitative analysis, limiting current density and concentration polarization are investigated with various SOFC anode structures. Our work improves the understanding of the gas diffusion and electrochemical performances of SOFCs with various electrodes.",

keywords = "Concentration polarizations, Effective diffusivities, Fuel cells, Limiting current densities, Pore sizes",

author = "Luhan Ye and Weiqiang Lv and Yiwu Mao and Pengfei Yan and Weidong He",

year = "2014",

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day = "12",

doi = "10.1016/j.ijhydene.2014.07.050",

language = "英语",

volume = "39",

pages = "15057--15062",

journal = "International Journal of Hydrogen Energy",

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TY - JOUR

T1 - An electrochemical device for the Knudsen and bulk diffusivity measurement in the anodes of solid oxide fuel cells

AU - Ye, Luhan

AU - Lv, Weiqiang

AU - Mao, Yiwu

AU - Yan, Pengfei

AU - He, Weidong

PY - 2014/9/12

Y1 - 2014/9/12

N2 - Both Knudsen and bulk diffusion mechanisms are taken into account in the anode diffusivity measurement in solid oxide fuel cells (SOFCs). The correlation of anode parameters including pore size, porosity, tortuosity and thickness with the effective diffusivity is then explored analytically. Through quantitative analysis, limiting current density and concentration polarization are investigated with various SOFC anode structures. Our work improves the understanding of the gas diffusion and electrochemical performances of SOFCs with various electrodes.

AB - Both Knudsen and bulk diffusion mechanisms are taken into account in the anode diffusivity measurement in solid oxide fuel cells (SOFCs). The correlation of anode parameters including pore size, porosity, tortuosity and thickness with the effective diffusivity is then explored analytically. Through quantitative analysis, limiting current density and concentration polarization are investigated with various SOFC anode structures. Our work improves the understanding of the gas diffusion and electrochemical performances of SOFCs with various electrodes.

KW - Concentration polarizations

KW - Effective diffusivities

KW - Fuel cells

KW - Limiting current densities

KW - Pore sizes

UR - https://www.scopus.com/pages/publications/84906787510

U2 - 10.1016/j.ijhydene.2014.07.050

DO - 10.1016/j.ijhydene.2014.07.050

M3 - 文章

AN - SCOPUS:84906787510

SN - 0360-3199

VL - 39

SP - 15057

EP - 15062

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 27

ER -

An electrochemical device for the Knudsen and bulk diffusivity measurement in the anodes of solid oxide fuel cells

Abstract

UN SDGs

Keywords

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