A cobalt-free Sm0.5Sr0.5Fe0.8Cu 0.2O3-δ-Ce0.8Sm0.2O 2-δ composite cathode for proton-conducting solid oxide fuel cells

Yihan Ling; Jia Yu; Bin Lin; Xiaozhen Zhang; Ling Zhao; Xingqin Liu

doi:10.1016/j.jpowsour.2010.11.017

A cobalt-free Sm_0.5Sr_0.5Fe_0.8Cu _0.2O_3-δ-Ce_0.8Sm_0.2O _2-δ composite cathode for proton-conducting solid oxide fuel cells

Yihan Ling, Jia Yu, Bin Lin, Xiaozhen Zhang, Ling Zhao, Xingqin Liu^*

^*Corresponding author for this work

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

71 Scopus citations

Abstract

A cobalt-free composite Sm_0.5Sr_0.5Fe _0.8Cu_0.2O_3-δ-Ce_0.8Sm _0.2O_2-δ (SSFCu-SDC) is investigated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs) in intermediate temperature range, with BaZr_0.1Ce_0.7Y_0.1Yb _0.1O_3-δ (BZCYYb) as the electrolyte. The XRD results show that SSFCu is chemically compatible with SDC at temperatures up to 1100 °C. The quad-layer single cells of NiO-BZCYYb/NiO-BZCYYb/BZCYYb/SSFCu-SDC are operated from 500 to 700 °C with humidified hydrogen (∼3% H ₂O) as fuel and the static air as oxidant. It shows an excellent power density of 505 mW cm^-2 at 700 °C. Moreover, a low electrode polarization resistance of 0.138 Ω cm² is achieved at 700 °C. Preliminary results demonstrate that the cobalt-free SSFCu-SDC composite is a promising cathode material for H-SOFCs.

Original language	English (US)
Pages (from-to)	2631-2634
Number of pages	4
Journal	Journal of Power Sources
Volume	196
Issue number	5
DOIs	https://doi.org/10.1016/j.jpowsour.2010.11.017
State	Published - Mar 1 2011
Externally published	Yes

Keywords

Cobalt-free
Composite cathode
Polarization resistance
Power density
Proton-conducting solid oxide fuel cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1016/j.jpowsour.2010.11.017

Cite this

@article{22002f89a65a42d79c3fe6c7a778e98b,

title = "A cobalt-free Sm0.5Sr0.5Fe0.8Cu 0.2O3-δ-Ce0.8Sm0.2O 2-δ composite cathode for proton-conducting solid oxide fuel cells",

abstract = "A cobalt-free composite Sm0.5Sr0.5Fe 0.8Cu0.2O3-δ-Ce0.8Sm 0.2O2-δ (SSFCu-SDC) is investigated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs) in intermediate temperature range, with BaZr0.1Ce0.7Y0.1Yb 0.1O3-δ (BZCYYb) as the electrolyte. The XRD results show that SSFCu is chemically compatible with SDC at temperatures up to 1100 °C. The quad-layer single cells of NiO-BZCYYb/NiO-BZCYYb/BZCYYb/SSFCu-SDC are operated from 500 to 700 °C with humidified hydrogen (∼3% H 2O) as fuel and the static air as oxidant. It shows an excellent power density of 505 mW cm-2 at 700 °C. Moreover, a low electrode polarization resistance of 0.138 Ω cm2 is achieved at 700 °C. Preliminary results demonstrate that the cobalt-free SSFCu-SDC composite is a promising cathode material for H-SOFCs.",

keywords = "Cobalt-free, Composite cathode, Polarization resistance, Power density, Proton-conducting solid oxide fuel cells",

author = "Yihan Ling and Jia Yu and Bin Lin and Xiaozhen Zhang and Ling Zhao and Xingqin Liu",

year = "2011",

month = mar,

day = "1",

doi = "10.1016/j.jpowsour.2010.11.017",

language = "English (US)",

volume = "196",

pages = "2631--2634",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier",

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TY - JOUR

T1 - A cobalt-free Sm0.5Sr0.5Fe0.8Cu 0.2O3-δ-Ce0.8Sm0.2O 2-δ composite cathode for proton-conducting solid oxide fuel cells

AU - Ling, Yihan

AU - Yu, Jia

AU - Lin, Bin

AU - Zhang, Xiaozhen

AU - Zhao, Ling

AU - Liu, Xingqin

PY - 2011/3/1

Y1 - 2011/3/1

N2 - A cobalt-free composite Sm0.5Sr0.5Fe 0.8Cu0.2O3-δ-Ce0.8Sm 0.2O2-δ (SSFCu-SDC) is investigated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs) in intermediate temperature range, with BaZr0.1Ce0.7Y0.1Yb 0.1O3-δ (BZCYYb) as the electrolyte. The XRD results show that SSFCu is chemically compatible with SDC at temperatures up to 1100 °C. The quad-layer single cells of NiO-BZCYYb/NiO-BZCYYb/BZCYYb/SSFCu-SDC are operated from 500 to 700 °C with humidified hydrogen (∼3% H 2O) as fuel and the static air as oxidant. It shows an excellent power density of 505 mW cm-2 at 700 °C. Moreover, a low electrode polarization resistance of 0.138 Ω cm2 is achieved at 700 °C. Preliminary results demonstrate that the cobalt-free SSFCu-SDC composite is a promising cathode material for H-SOFCs.

AB - A cobalt-free composite Sm0.5Sr0.5Fe 0.8Cu0.2O3-δ-Ce0.8Sm 0.2O2-δ (SSFCu-SDC) is investigated as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs) in intermediate temperature range, with BaZr0.1Ce0.7Y0.1Yb 0.1O3-δ (BZCYYb) as the electrolyte. The XRD results show that SSFCu is chemically compatible with SDC at temperatures up to 1100 °C. The quad-layer single cells of NiO-BZCYYb/NiO-BZCYYb/BZCYYb/SSFCu-SDC are operated from 500 to 700 °C with humidified hydrogen (∼3% H 2O) as fuel and the static air as oxidant. It shows an excellent power density of 505 mW cm-2 at 700 °C. Moreover, a low electrode polarization resistance of 0.138 Ω cm2 is achieved at 700 °C. Preliminary results demonstrate that the cobalt-free SSFCu-SDC composite is a promising cathode material for H-SOFCs.

KW - Cobalt-free

KW - Composite cathode

KW - Polarization resistance

KW - Power density

KW - Proton-conducting solid oxide fuel cells

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