Ni-YSZ gradient anodes for anode-supported SOFCs

Jiangrong Kong; Kening Sun; Derui Zhou; Naiqing Zhang; Ju Mu; Jinshuo Qiao

doi:10.1016/j.jpowsour.2006.12.042

Ni-YSZ gradient anodes for anode-supported SOFCs

Jiangrong Kong, Kening Sun^*, Derui Zhou, Naiqing Zhang, Ju Mu, Jinshuo Qiao

^*Corresponding author for this work

Harbin Institute of Technology

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

117 Citations (Scopus)

Abstract

A novel multilayer Ni-YSZ anode structure, which had a gradient in particle size and Ni content, was introduced in this paper. This gradient anode was co-fabricated with electrolyte by a symmetrical uniaxial die-pressing method. The anode functional layer (AFL) was developed to several sub-layers. The influences of different composition and various thickness of the AFL were investigated. The thickness of anode effective electrochemical reaction zone was ascertained to about 40-50 μm. A unit cell with gradient in both particle size and Ni content demonstrated a maximum power density of 467.14 mW cm^-2. EIS result demonstrated that the surface dissociation/diffusion step is easier than charge-transfer reaction, which indicated that the microstructure of the anode, especially anode functional layer, was well fabricated and the distribution of the two phases was homogeneous thus the interfacial resistance was dampened.

Original language	English
Pages (from-to)	337-342
Number of pages	6
Journal	Journal of Power Sources
Volume	166
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2006.12.042
Publication status	Published - 15 Apr 2007
Externally published	Yes

Keywords

Anode functional layer (AFL)
Cell performance
Gradient anode
Microstructure
Ni-YSZ cermet
Solid oxide fuel cell (SOFC)

UN SDGs

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

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10.1016/j.jpowsour.2006.12.042

Cite this

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title = "Ni-YSZ gradient anodes for anode-supported SOFCs",

abstract = "A novel multilayer Ni-YSZ anode structure, which had a gradient in particle size and Ni content, was introduced in this paper. This gradient anode was co-fabricated with electrolyte by a symmetrical uniaxial die-pressing method. The anode functional layer (AFL) was developed to several sub-layers. The influences of different composition and various thickness of the AFL were investigated. The thickness of anode effective electrochemical reaction zone was ascertained to about 40-50 μm. A unit cell with gradient in both particle size and Ni content demonstrated a maximum power density of 467.14 mW cm-2. EIS result demonstrated that the surface dissociation/diffusion step is easier than charge-transfer reaction, which indicated that the microstructure of the anode, especially anode functional layer, was well fabricated and the distribution of the two phases was homogeneous thus the interfacial resistance was dampened.",

keywords = "Anode functional layer (AFL), Cell performance, Gradient anode, Microstructure, Ni-YSZ cermet, Solid oxide fuel cell (SOFC)",

author = "Jiangrong Kong and Kening Sun and Derui Zhou and Naiqing Zhang and Ju Mu and Jinshuo Qiao",

year = "2007",

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TY - JOUR

T1 - Ni-YSZ gradient anodes for anode-supported SOFCs

AU - Kong, Jiangrong

AU - Sun, Kening

AU - Zhou, Derui

AU - Zhang, Naiqing

AU - Mu, Ju

AU - Qiao, Jinshuo

PY - 2007/4/15

Y1 - 2007/4/15

N2 - A novel multilayer Ni-YSZ anode structure, which had a gradient in particle size and Ni content, was introduced in this paper. This gradient anode was co-fabricated with electrolyte by a symmetrical uniaxial die-pressing method. The anode functional layer (AFL) was developed to several sub-layers. The influences of different composition and various thickness of the AFL were investigated. The thickness of anode effective electrochemical reaction zone was ascertained to about 40-50 μm. A unit cell with gradient in both particle size and Ni content demonstrated a maximum power density of 467.14 mW cm-2. EIS result demonstrated that the surface dissociation/diffusion step is easier than charge-transfer reaction, which indicated that the microstructure of the anode, especially anode functional layer, was well fabricated and the distribution of the two phases was homogeneous thus the interfacial resistance was dampened.

AB - A novel multilayer Ni-YSZ anode structure, which had a gradient in particle size and Ni content, was introduced in this paper. This gradient anode was co-fabricated with electrolyte by a symmetrical uniaxial die-pressing method. The anode functional layer (AFL) was developed to several sub-layers. The influences of different composition and various thickness of the AFL were investigated. The thickness of anode effective electrochemical reaction zone was ascertained to about 40-50 μm. A unit cell with gradient in both particle size and Ni content demonstrated a maximum power density of 467.14 mW cm-2. EIS result demonstrated that the surface dissociation/diffusion step is easier than charge-transfer reaction, which indicated that the microstructure of the anode, especially anode functional layer, was well fabricated and the distribution of the two phases was homogeneous thus the interfacial resistance was dampened.

KW - Anode functional layer (AFL)

KW - Cell performance

KW - Gradient anode

KW - Microstructure

KW - Ni-YSZ cermet

KW - Solid oxide fuel cell (SOFC)

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DO - 10.1016/j.jpowsour.2006.12.042

M3 - Article

AN - SCOPUS:33947543210

SN - 0378-7753

VL - 166

SP - 337

EP - 342

JO - Journal of Power Sources

JF - Journal of Power Sources

IS - 2

ER -

Ni-YSZ gradient anodes for anode-supported SOFCs

Abstract

Keywords

UN SDGs

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