Effect of Co alloying on the electrochemical performance of Ni-Ce 0.8Gd 0.2O 1.9 anodes for hydrocarbon-fueled solid oxide fuel cells

Chun Kang Cho; Byung Hyun Choi; Ki Tae Lee

doi:10.1016/j.jallcom.2012.07.012

Effect of Co alloying on the electrochemical performance of Ni-Ce _0.8Gd _0.2O _1.9 anodes for hydrocarbon-fueled solid oxide fuel cells

Chun Kang Cho
, Byung Hyun Choi
, Ki Tae Lee^*

^*Corresponding author for this work

Electronic Materials Engineering

Jeonbuk National University
Korea Institute of Ceramic Engineering And Technology

Research output: Contribution to journal › Journal article › peer-review

31 Scopus citations

Abstract

Ni-Co alloy-based cermets have been characterized as alternative materials for the anode in hydrocarbon-fueled solid oxide fuel cells. Ni _1- _xCo _x-Ce _0.8Gd _0.2O _1.9 cermet anodes were co-synthesized using a glycine nitrate process without further mixing processes. Both the electrical conductivity and the amount of carbon deposits were reduced by Co alloying, while the polarization resistance in H ₂ atmosphere increased with increasing Co content. The anode polarization resistance in a CH ₄ atmosphere also decreased with an increasing Co content. These findings were strongly correlated with the carbon deposition behavior. Co alloying was effective at suppressing the deposition of carbon and improving the electrochemical performance of solid oxide fuel cells that operate on CH ₄ fuel.

Original language	English
Pages (from-to)	433-439
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	541
DOIs	https://doi.org/10.1016/j.jallcom.2012.07.012
State	Published - 2012.11.15

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anode
Carbon deposition
Composite materials
Ni-Co alloy
Solid oxide fuel cell

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Mechanical

Access to Document

10.1016/j.jallcom.2012.07.012

Cite this

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title = "Effect of Co alloying on the electrochemical performance of Ni-Ce 0.8Gd 0.2O 1.9 anodes for hydrocarbon-fueled solid oxide fuel cells",

abstract = "Ni-Co alloy-based cermets have been characterized as alternative materials for the anode in hydrocarbon-fueled solid oxide fuel cells. Ni 1- xCo x-Ce 0.8Gd 0.2O 1.9 cermet anodes were co-synthesized using a glycine nitrate process without further mixing processes. Both the electrical conductivity and the amount of carbon deposits were reduced by Co alloying, while the polarization resistance in H 2 atmosphere increased with increasing Co content. The anode polarization resistance in a CH 4 atmosphere also decreased with an increasing Co content. These findings were strongly correlated with the carbon deposition behavior. Co alloying was effective at suppressing the deposition of carbon and improving the electrochemical performance of solid oxide fuel cells that operate on CH 4 fuel.",

keywords = "Anode, Carbon deposition, Composite materials, Ni-Co alloy, Solid oxide fuel cell",

author = "Cho, \{Chun Kang\} and Choi, \{Byung Hyun\} and Lee, \{Ki Tae\}",

year = "2012",

month = nov,

day = "15",

doi = "10.1016/j.jallcom.2012.07.012",

language = "English",

volume = "541",

pages = "433--439",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

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T1 - Effect of Co alloying on the electrochemical performance of Ni-Ce 0.8Gd 0.2O 1.9 anodes for hydrocarbon-fueled solid oxide fuel cells

AU - Cho, Chun Kang

AU - Choi, Byung Hyun

AU - Lee, Ki Tae

PY - 2012/11/15

Y1 - 2012/11/15

N2 - Ni-Co alloy-based cermets have been characterized as alternative materials for the anode in hydrocarbon-fueled solid oxide fuel cells. Ni 1- xCo x-Ce 0.8Gd 0.2O 1.9 cermet anodes were co-synthesized using a glycine nitrate process without further mixing processes. Both the electrical conductivity and the amount of carbon deposits were reduced by Co alloying, while the polarization resistance in H 2 atmosphere increased with increasing Co content. The anode polarization resistance in a CH 4 atmosphere also decreased with an increasing Co content. These findings were strongly correlated with the carbon deposition behavior. Co alloying was effective at suppressing the deposition of carbon and improving the electrochemical performance of solid oxide fuel cells that operate on CH 4 fuel.

AB - Ni-Co alloy-based cermets have been characterized as alternative materials for the anode in hydrocarbon-fueled solid oxide fuel cells. Ni 1- xCo x-Ce 0.8Gd 0.2O 1.9 cermet anodes were co-synthesized using a glycine nitrate process without further mixing processes. Both the electrical conductivity and the amount of carbon deposits were reduced by Co alloying, while the polarization resistance in H 2 atmosphere increased with increasing Co content. The anode polarization resistance in a CH 4 atmosphere also decreased with an increasing Co content. These findings were strongly correlated with the carbon deposition behavior. Co alloying was effective at suppressing the deposition of carbon and improving the electrochemical performance of solid oxide fuel cells that operate on CH 4 fuel.

KW - Anode

KW - Carbon deposition

KW - Composite materials

KW - Ni-Co alloy

KW - Solid oxide fuel cell

UR - https://www.scopus.com/pages/publications/84865055381

U2 - 10.1016/j.jallcom.2012.07.012

DO - 10.1016/j.jallcom.2012.07.012

M3 - Journal article

AN - SCOPUS:84865055381

SN - 0925-8388

VL - 541

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EP - 439

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -