Journal ArticleDOI
High power-density single-chamber fuel cells operated on methane
TLDR
In this paper, a single-chamber solid oxide fuel cells (SC-SOFCs) incorporating thin-film Sm_(0.15)Ce_( 0.85)O_(1.925) (SDC) as the electrolyte, thick Ni + SDC as the (supporting) anode and SDC + BSCF (Ba_(0., 0.5)Sr-, 0.8)Fe_(0, 3−δ)) as the cathode) were operated in a mixture of methane, oxygen and helium at furnace temperaturesAbout:
This article is published in Journal of Power Sources.The article was published on 2006-11-08. It has received 95 citations till now. The article focuses on the topics: Methane & Solid oxide fuel cell.read more
Citations
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Journal ArticleDOI
Progress in understanding and development of Ba0.5Sr0.5Co0.8Fe0.2O3−δ-based cathodes for intermediate-temperature solid-oxide fuel cells: A review
Wei Zhou,Ran Ran,Zongping Shao +2 more
TL;DR: In this article, a review of the current research activities on BSCF-based cathodes for intermediate-temperature (IT)-SOFCs is presented and analyzed to provide some guidelines in the search for the new generation of cathode materials for IT-SOFC.
Journal ArticleDOI
Structural instability of cubic perovskite BaxSr1 − xCo1 − yFeyO3 − δ
TL;DR: In this article, it was shown that cubic perovskites BaxSr1 − xCo0.8Fe0.2O3 − δ (BSCF) become unstable in air at intermediate temperatures and gradually transform to a hexagonal perovsite on cooling.
Journal ArticleDOI
Fundamentals of electro- and thermochemistry in the anode of solid-oxide fuel cells with hydrocarbon and syngas fuels
TL;DR: In this paper, the basic operating principles, state-of-the-art performance benchmarks, and SOFC-relevant materials are summarized, and the interdependence of heterogeneous chemistry, charge-transfer processes, and transport are discussed in the context of SOFC membrane-electrode assembly modeling.
Journal ArticleDOI
Electrode materials and reaction mechanisms in solid oxide fuel cells: a brief review. III. Recent trends and selected methodological aspects
TL;DR: In this paper, a short overview of novel cathode and anode materials, their electrochemical performance in contact with oxygen anion- and proton-conducting solid electrolytes, and specific features determining possible applications are presented.
Journal ArticleDOI
Characterization and Comparison of Different Cathode Materials for SC-SOFC: LSM, BSCF, SSC, and LSCF†
TL;DR: In this paper, four cathode materials for single chamber solid oxide fuel cell (SC-SOFC) were investigated regarding their chemical stability, electrical conductivity, catalytic activity, and polarization resistance under air and methane/air atmosphere.
References
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Journal ArticleDOI
A high-performance cathode for the next generation of solid-oxide fuel cells
Zongping Shao,Sossina M. Haile +1 more
TL;DR: BSCF is presented as a new cathode material for reduced-temperature SOFC operation and demonstrated that BSCF is ideally suited to ‘single-chamber’ fuel-cell operation, where anode and cathode reactions take place within the same physical chamber.
Journal ArticleDOI
Investigation of the permeation behavior and stability of a Ba0.5Sr0.5Co0.8Fe0.2O3−δ oxygen membrane
TL;DR: In this article, a combined citrate-EDTA complexing method was used for the preparation of SCFO and Ba0.2O3-delta (BSCFO) oxides, and the results of O-2-TPD and XRD showed that the introduction of barium into SCFO could effectively suppress the oxidation of Co3+ and Fe3+ to higher valence states of Co4 and Fe4+ in the lattice and stabilize the perovskite structure under lower oxygen partial pressures.
Journal ArticleDOI
A low-operating-temperature solid oxide fuel cell in hydrocarbon-Air mixtures
Takashi Hibino,Atsuko Hashimoto,Takao Inoue,Jun-ichi Tokuno,Shin-ichiro Yoshida,Mitsuru Sano +5 more
TL;DR: The performance of a single-chamber solid oxide fuel cell was studied using a ceria-basedsolid electrolyte at temperatures below 773 kelvin, where the solid electrolyte functioned as a purely ionic conductor.
Journal ArticleDOI
A thermally self-sustained micro solid-oxide fuel-cell stack with high power density
TL;DR: This work demonstrates a thermally self-sustaining micro-SOFC stack with high power output and rapid start-up by using single chamber operation on propane fuel, and demonstrates the catalytic oxidation reactions supply sufficient thermal energy to maintain the fuel cells.
Journal ArticleDOI
Impedance Spectroscopy as a Tool for Chemical and Electrochemical Analysis of Mixed Conductors: A Case Study of Ceria
Wei Lai,Sossina M. Haile +1 more
TL;DR: In this paper, the AC impedance response of mixed ionic and electronic conductors (MIECs) is derived from first principles and quantitatively compared with experimental data, and a broad spectrum of electrical and thermodynamic properties is extracted solely from the measurement of impedance spectra over wide oxygen partial pressure and temperature ranges.