High performance proton-conducting solid oxide fuel cells with a stable Sm0.5Sr0.5Co3-δ-Ce0.8Sm0.2O2-δ composite cathode

Wenping Sun; Litao Yan; Bin Lin; Shangquan Zhang; Wei Liu

doi:10.1016/j.jpowsour.2009.11.100

High performance proton-conducting solid oxide fuel cells with a stable Sm_0.5Sr_0.5Co_3-δ-Ce_0.8Sm_0.2O_2-δ composite cathode

Wenping Sun, Litao Yan, Bin Lin, Shangquan Zhang, Wei Liu^*

^*Corresponding author for this work

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

107 Scopus citations

Abstract

A Sm_0.5Sr_0.5CoO_3-δ-Ce_0.8Sm_0.2O_2-δ (SSC-SDC) composite is employed as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs). BaZr_0.1Ce_0.7Y_0.2O_3-δ (BZCY) is used as the electrolyte, and the system exhibits a relatively high performance. An extremely low electrode polarization resistance of 0.066 Ω cm² is achieved at 700 °C. The maximum power densities are: 665, 504, 344, 214, and 118 mW cm^-2 at 700, 650, 600, 550, and 500 °C, respectively. Moreover, the SSC-SDC cathode shows an essentially stable performance for 25 h at 600 °C with a constant output voltage of 0.5 V. This excellent performance implies that SSC-SDC, which is a typical cathode material for SOFCs based on oxide ionic conductor, is also a promising alternative cathode for H-SOFCs.

Original language	English (US)
Pages (from-to)	3155-3158
Number of pages	4
Journal	Journal of Power Sources
Volume	195
Issue number	10
DOIs	https://doi.org/10.1016/j.jpowsour.2009.11.100
State	Published - May 15 2010
Externally published	Yes

Keywords

Cathode
Proton-conducting solid oxide fuel cells
SmSrCoO-CeSmO

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.2009.11.100

Cite this

@article{93028ab4547d45e2b79642ee447fd654,

title = "High performance proton-conducting solid oxide fuel cells with a stable Sm0.5Sr0.5Co3-δ-Ce0.8Sm0.2O2-δ composite cathode",

abstract = "A Sm0.5Sr0.5CoO3-δ-Ce0.8Sm0.2O2-δ (SSC-SDC) composite is employed as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs). BaZr0.1Ce0.7Y0.2O3-δ (BZCY) is used as the electrolyte, and the system exhibits a relatively high performance. An extremely low electrode polarization resistance of 0.066 Ω cm2 is achieved at 700 °C. The maximum power densities are: 665, 504, 344, 214, and 118 mW cm-2 at 700, 650, 600, 550, and 500 °C, respectively. Moreover, the SSC-SDC cathode shows an essentially stable performance for 25 h at 600 °C with a constant output voltage of 0.5 V. This excellent performance implies that SSC-SDC, which is a typical cathode material for SOFCs based on oxide ionic conductor, is also a promising alternative cathode for H-SOFCs.",

keywords = "Cathode, Proton-conducting solid oxide fuel cells, SmSrCoO-CeSmO",

author = "Wenping Sun and Litao Yan and Bin Lin and Shangquan Zhang and Wei Liu",

year = "2010",

month = may,

day = "15",

doi = "10.1016/j.jpowsour.2009.11.100",

language = "English (US)",

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pages = "3155--3158",

journal = "Journal of Power Sources",

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T1 - High performance proton-conducting solid oxide fuel cells with a stable Sm0.5Sr0.5Co3-δ-Ce0.8Sm0.2O2-δ composite cathode

AU - Sun, Wenping

AU - Yan, Litao

AU - Lin, Bin

AU - Zhang, Shangquan

AU - Liu, Wei

PY - 2010/5/15

Y1 - 2010/5/15

N2 - A Sm0.5Sr0.5CoO3-δ-Ce0.8Sm0.2O2-δ (SSC-SDC) composite is employed as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs). BaZr0.1Ce0.7Y0.2O3-δ (BZCY) is used as the electrolyte, and the system exhibits a relatively high performance. An extremely low electrode polarization resistance of 0.066 Ω cm2 is achieved at 700 °C. The maximum power densities are: 665, 504, 344, 214, and 118 mW cm-2 at 700, 650, 600, 550, and 500 °C, respectively. Moreover, the SSC-SDC cathode shows an essentially stable performance for 25 h at 600 °C with a constant output voltage of 0.5 V. This excellent performance implies that SSC-SDC, which is a typical cathode material for SOFCs based on oxide ionic conductor, is also a promising alternative cathode for H-SOFCs.

AB - A Sm0.5Sr0.5CoO3-δ-Ce0.8Sm0.2O2-δ (SSC-SDC) composite is employed as a cathode for proton-conducting solid oxide fuel cells (H-SOFCs). BaZr0.1Ce0.7Y0.2O3-δ (BZCY) is used as the electrolyte, and the system exhibits a relatively high performance. An extremely low electrode polarization resistance of 0.066 Ω cm2 is achieved at 700 °C. The maximum power densities are: 665, 504, 344, 214, and 118 mW cm-2 at 700, 650, 600, 550, and 500 °C, respectively. Moreover, the SSC-SDC cathode shows an essentially stable performance for 25 h at 600 °C with a constant output voltage of 0.5 V. This excellent performance implies that SSC-SDC, which is a typical cathode material for SOFCs based on oxide ionic conductor, is also a promising alternative cathode for H-SOFCs.

KW - Cathode

KW - Proton-conducting solid oxide fuel cells

KW - SmSrCoO-CeSmO

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