A symmetrical solid oxide fuel cell prepared by dry-pressing and impregnating methods

Zhu, Xingbao; Lü, Zhe; Wei, Bo; Huang, Xiqiang; Su, Wenhui

doi:10.1016/j.jpowsour.2010.07.055

Cited by 75 publications

(24 citation statements)

References 21 publications

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“…In the case of methane or propanol fuels used, the registered power density is such symmetrical configuration did not exceed 10 mW·cm -2 , but resistance of the used material to carbon deposition and improved properties concerning sulfur poisoning are a basis for further studies. Recently, a significant number of emerging literature reports on the subject can be noticed [43][44][45]. Symmetrical cell construction in the case of SOFCs with oxygen-conducting electrolyte seems justified.…”

Section: Concept Of Symmetrical Fuel Cellmentioning

confidence: 99%

Optimization of proton conductors for application in solid oxide fuel cell technology

Świerczek

Skubida

2017

E3S Web Conf.

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Abstract. Application of proton-conducting ceramic membranes in various electrochemical devices (e.g. SOFCs, SOECs) is considered as highly beneficial. Because of a unique transport mechanism associated with proton movement in oxide materials, designing and optimization, as well as practical application of such proton conductors is a challenge. In this work, apart from discussion of literature data, authors' own results are provided, which are focused on material-related issues, including development of electrolyte and electrode materials exhibiting high proton conductivity.

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Section: Concept Of Symmetrical Fuel Cellmentioning

confidence: 99%

Optimization of proton conductors for application in solid oxide fuel cell technology

Świerczek

Skubida

2017

E3S Web Conf.

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“…13(b), the measured voltage increased gradually at the first 20 h, and then remained at 0.685 V until the ending of the test. The good cell performance and long-term stability in CH 4 indicate that PSCFM 0.05 should be a promising symmetrical electrode for SOFCs.…”

Section: Cell Performance and Stabilitymentioning

confidence: 99%

“…And RuizeMorales et al optimized the microstructure of the LSCM electrode, using poly methyl methacrylate (PMMA) microspheres as templates, achieved the maximum power density values of 500 and 300 mW cm À2 at 950 C in wet H 2 and CH 4 , respectively. Zhu et al [4] used the dry-pressing method to fabricate an SSOFC with a dense thin YSZ electrolyte film sandwiched between two symmetrical porous YSZ layers in which LSCM based anode and cathode were incorporated using wet impregnation techniques. The maximum power density of a single cell with 32 wt.% LSCM impregnated YSZ anode and cathode reached 333 and 265 mW cm À2 at 900 C in dry H 2 and CH 4 , respectively.…”

Section: Introductionmentioning

confidence: 99%

B-site Mo-doped perovskite Pr0.4Sr0.6 (Co0.2Fe0.8)1−Mo O3− (x = 0, 0.05, 0.1 and 0.2) as electrode for symmetrical solid oxide fuel cell

Zhang

Guan

Khaerudini

et al. 2015

Journal of Power Sources

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“…The effect of ceria -substation partly in A-site on catalytic activity even in H 2 S-containing fuel would be focused. We researched that LSCCM can be considered as a good electrode material in H 2 S-SFCs mainly due to its better electrochemical performances exposed to H 2 fuel containing H 2 S. 2 in an ethylenediaminetetraacetic acid(EDTA)-ammonia aqueous solution (pH 8-9) with stirring. After added citric acid, ammonia aqueous solution was then added to balance the pH to 7-8.…”

Section: Introductionmentioning

confidence: 99%

Electrode Material of Ceria-Substation Lsccm for Symmetric Solid Oxide Fuel Cells Exposed to H2 Fuel Containing H2S

Song¹,

Winie²,

Zhong³

2014

JOCET

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Abstract-10 at.% ceria-substation on A-site for La 0.75 Sr 0.15 Ce 0.1 Cr 0.5 Mn 0.5 (noted as LSCCM) was synthesized by the sol-gel process. The characterizations were done by XRD and SEM. The structures, before and after exposure to 5% H 2 S-5% wet H 2 at 900 ℃, were demonstrated using X-ray diffraction (XRD). And best sulfur tolerance of LSCCM was studied. It also demonstrated that LSCCM had good structural compatibility with electrolyte YSZ. SEM test exhibits a homogeneous distribution of pores. The results of electric performance test prove that the maximal power density was 16.03 mW·cm -2 in 5% H 2 S-5% wet H 2 at 900 . ℃ Index Terms-Symmetrical electrode, ceria-substation, sulfur tolerance, electrochemical performance. I. INTRODUCTIONSymmetric Solid Oxide Fuel Cells (SFCs) [1] as a new concept of Solid Oxide Fuel Cells (SOFC), using the same material as both anode and cathode, has attracted attention because they could reduce such strains greatly, enhance the ease of co-sintering and decrease the fabrication costs derived from the simpler fabrication process considerably and address problems such as reversible sulphur poisoning [1]- [3]. However, there is great challenge for SFCs, replacing the traditional SOFC configuration, due to the choice of electrode material needs to be stricter. For example, in this configuration, the electrode materials should have both good oxidability (as anode) and particular reducibity (as cathode). Furthmore, they should exhibit an adequate degree of porosity and an acceptable electronic conductivity in both oxidising and reducing atmospheres, dimensional stability and chemically and physically compatible with the other fuel cell components, and catalytically active towards oxygen reduction and fuel oxidation without using external reformersDespite the requirements over the materials choice are certainly demanding, the SFC concept has already been proposed and proved using (La,Sr) (LSCCM), ceria-substation at A-site, was prepared and investigated for potential SFC electrodes. The effect of ceria -substation partly in A-site on catalytic activity even in H 2 S-containing fuel would be focused. We researched that LSCCM can be considered as a good electrode material in H 2 S-SFCs mainly due to its better electrochemical performances exposed to H 2 fuel containing H 2 S. 2 in an ethylenediaminetetraacetic acid(EDTA)-ammonia aqueous solution (pH 8-9) with stirring. After added citric acid, ammonia aqueous solution was then added to balance the pH to 7-8. A dark purple solution was obtained, and mixture was stirred further on a magnetic stirrer (IKA)with a certain shear rate at 80 for several hours. After that, the ℃ temperature increased to 200 to form the gel. Then the ℃ resulting gel was heated at 500 to carry out combustion on ℃ a hot plate in the fume hood. After burning out the organic components, the porous ash formed was finely grinding and then calcined under airflow in a high-temperature furnace (NABERTHERM) at 1100 for 5 h to form the black ℃ powder. II. EXPERIMENTAL S...

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A symmetrical solid oxide fuel cell prepared by dry-pressing and impregnating methods

Cited by 75 publications

References 21 publications

Optimization of proton conductors for application in solid oxide fuel cell technology

Optimization of proton conductors for application in solid oxide fuel cell technology

B-site Mo-doped perovskite Pr0.4Sr0.6 (Co0.2Fe0.8)1−Mo O3− (x = 0, 0.05, 0.1 and 0.2) as electrode for symmetrical solid oxide fuel cell

Electrode Material of Ceria-Substation Lsccm for Symmetric Solid Oxide Fuel Cells Exposed to H2 Fuel Containing H2S

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