Journal ArticleDOI
On the influence of the annealing temperature and heavy current treatments on the porous structure of platinum electrodes and on the kinetics of the oxygen reaction at high temperatures
TLDR
In this article, the influence of high temperature annealing and heavy current treatments of porous Pt electrodes was investigated with scanning electron microscopy, and it was demonstrated that both the structure and the catalytic activity are influenced by the treatments.Abstract:
The influence of high temperature annealing and heavy current treatments of porous Pt electrodes is investigated with scanning electron microscopy. The results are discussed on the basis of the kinetic behaviour of these electrodes, known from the literature or deduced from our still unpublished results. It is demonstrated that both the structure and the catalytic activity are influenced by the treatments.read more
Citations
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Journal ArticleDOI
Ceramic Fuel Cells
TL;DR: Ceramic fuel cells, commonly referred to as solid-oxide fuel cells (SOFCs), are presently under development for a variety of power generation applications as mentioned in this paper, and the critical issues posed by the development of this type of fuel cell are discussed.
Journal ArticleDOI
Progress in material selection for solid oxide fuel cell technology: A review
TL;DR: In this paper, the authors provide a comprehensive review with respect to the structure, chemistry, design and selection of materials, underlying mechanisms, and performance of each SOFC component, and it opens up the future directions towards pursuing SOFC research.
Journal ArticleDOI
Characteristics of cathodic polarization at Pt/YSZ interface without the effect of electrode microstructure
TL;DR: In this paper, the characteristics of cathodic polarization at the Pt/yttria stabilized zirconia (YSZ) interface have been evaluated with different electrode microstructures by ac impedance analysis.
Journal ArticleDOI
Estimation of Charge-Transfer Resistivity of Pt Cathode on YSZ Electrolyte Using Patterned Electrodes
TL;DR: In this article, the authors used photomicrolithography to obtain the impedance spectra for half-cells under oxygen partial pressures, ranging from 10-3 to 1 atm and temperatures from 650 to 800oC.
Journal ArticleDOI
Oxygen reduction and oxidation at epitaxial model-type Pt(O2)/YSZ electrodes – On the role of PtOx formation on activation, passivation, and charge transfer
TL;DR: In this paper, a model based on the electrochemical control of thermally grown Pt oxide was suggested to explain the experimental results and offers routes to improve the electrode performance of Pt(O2)/YSZ at low temperature.
References
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Journal ArticleDOI
Study of solid electrolyte polarization by a complex admittance method
TL;DR: In this paper, the polarization behavior of zirconia-yttria solid electrolyte specimens with platinum electrodes has been studied over a temperature range of 400° to 800°C and a wide range of oxygen partial pressures.
Journal ArticleDOI
Overpotential Behavior of Stabilized Zirconia Solid Electrolyte Fuel Cells
T. H. Etsell,S. N. Flengas +1 more
TL;DR: In this paper, the nature and characteristics of the overpotential in cells of the type were determined from 700° to 1100°C over a wide range of oxygen pressures, and based on the present results and adsorption data, a mechanism was proposed for the cathode reaction.
Journal ArticleDOI
Platinum Electrodes and Calcia‐Stabilized Zirconia The Relation between Electrode Processes and Electrode Structure
TL;DR: In this paper, measurements of the direct currentvoltage characteristics of calcia-stabilized zirconia using platinum electrodes of various types have been made to investigate possible electrode processes.
Journal ArticleDOI
The determination of oxygen in gas mixtures by electromotive force measurements using solid oxide electrolytes
T. H. Etsell,S. N. Flengas +1 more
TL;DR: In this paper, the behavior of impervious ZrO2+ 10 mole pct CaO electrolyte tubes was studied at 500∮ to 1100° in oxygen concentration cells of the type (−) Ar-O2or CO-CO2/ZrO 2-CaO/O2(+)
Journal ArticleDOI
Isotopic exchange of oxygen on platinum powder.
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