Ba0.95Ca0.05Ce0.9Y0.1O3 as an electrolyte for proton-conducting ceramic fuel cells

Dudek, Magdalena; Lis, Bartłomiej; Lach, Radosław; Daugėla, S.; Салкус, Т.; Kežionis, A.; Mosiałek, Michał; Socha, Robert P.; Morgiel, J.; Gajek, Marcin; Sitarz, Maciej; Ziąbka, Magdalena

doi:10.1016/j.electacta.2019.02.112

Cited by 18 publications

(11 citation statements)

References 41 publications

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“…A similar situation was observed for a series of samples of CaO-modified BaCe0.9Y0.1O3-δ resulting in Ba0.95Ca0.05Ce0.9Y0.1O3−δ (5CBCY), whose electrolytic properties were described in the paper [27]. As a result of the analysis of Raman spectra (Figure 4b,c), it can be stated that samples 2SBCY-h and 5SBCY-h, additionally heated in a H2O-Ar gas atmosphere, were characterized by greater concentrations of point defects compared to the same samples (2SBCY; 5SBCY) prior to the heating experiments.…”

Section: Resultssupporting

confidence: 79%

“…Ultrabroadband frequency electrochemical impedance spectroscopy within the range 1-10 GHz had previously been applied to the study of the electrical conductivity of BaCe 0.9 Y 0.1 O 3−δ and Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3−δ samples [27]. In the present study we continued the application of this method in order to study the electrical properties of SBCY sintered samples.…”

Section: Resultsmentioning

confidence: 93%

“…Variations in the cell volumes of SBCY samples were calculated based on cell parameters, determined by means of the Rietveld method. In order to find the impact of the incorporation of strontium resulting in Ba 1−x Sr x Ce 0.9 Y 0.1 O 3−δ on variations in its structure compared to the BaCe 0.9 Y 0.1 O 3−δ sample, the Goldschmidt tolerance factor (t), specific free volume (SFV), and global instability index (GII) were calculated using the SPuDS software package (2.18.06.19, Michael Lufaso, Jacksonville, FL, USA, dedicated to analysis of the structure of ABO 3 -based oxides [27,31,32].…”

Section: Analytical Methods Used To Evaluate the Physicochemical Propmentioning

confidence: 99%

“…An excitation wavelength of 532 nm was used, with a beam intensity of approximately 10 mW. Acquisition time was set at 30 s [27].…”

Section: Analytical Methods Used To Evaluate the Physicochemical Propmentioning

confidence: 99%

“…The SBCY samples used for these experiments were of the same dimensions and thickness as those used in the investigations of electrical properties. Following the experiments, samples were subjected to X-ray investigations and SEM microstructural observations as well as electrical conductivity measurements, performed in both air and hydrogen gas atmospheres [27].…”

Section: Analytical Methods Used To Evaluate the Physicochemical Propmentioning

confidence: 99%

See 4 more Smart Citations

Samples of Ba1−xSrxCe0.9Y0.1O3−δ, 0 < x < 0.1, with Improved Chemical Stability in CO2-H2 Gas-Involving Atmospheres as Potential Electrolytes for a Proton Ceramic Fuel Cell

et al. 2020

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Section: Resultssupporting

confidence: 79%

Section: Resultsmentioning

confidence: 93%

Section: Analytical Methods Used To Evaluate the Physicochemical Propmentioning

confidence: 99%

“…An excitation wavelength of 532 nm was used, with a beam intensity of approximately 10 mW. Acquisition time was set at 30 s [27].…”

Section: Analytical Methods Used To Evaluate the Physicochemical Propmentioning

confidence: 99%

Section: Analytical Methods Used To Evaluate the Physicochemical Propmentioning

confidence: 99%

See 3 more Smart Citations

Samples of Ba1−xSrxCe0.9Y0.1O3−δ, 0 < x < 0.1, with Improved Chemical Stability in CO2-H2 Gas-Involving Atmospheres as Potential Electrolytes for a Proton Ceramic Fuel Cell

et al. 2020

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Effect of synthesis on structural, vibrational, and electrical properties of Ba1−xCaxCe0.8Nd0.2O3−δ (BCCN, 0 ≤ x ≤ 0.01) synthesized by sol–gel auto combustion method

Kothandan,

Prasad,

Shanmukhi

et al. 2024

Appl. Phys. A

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Utilisation of methylcellulose as a shaping agent in the fabrication of Ba0.95Ca0.05Ce0.9Y0.1O3 proton-conducting ceramic membranes via the gelcasting method

Dudek

Lis

Kocyło

et al. 2019

J Therm Anal Calorim

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The gelcasting method was used to form gastight Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 samples proposed for use as proton-conducting electrolytes in solid oxide fuel cells. Methylcellulose was used as an environmentally friendly shaping agent for Ba 0.95-Ca 0.05 Ce 0.9 Y 0.1 O 3 powder in an ethanol solution. Samples of Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 were also prepared from the same powder via traditional isostatic pressing, as a reference for cast samples, and sintered in the same conditions. Comparative studies of the physicochemical properties of Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 electrolytes, formed by means of these two methods and then sintered at 1550°C for 2.5 h, were presented and discussed. Using the X-ray diffraction method, only the pure orthorhombic phase of BaCe 0.9 Y 0.1 O 3 was detected in the Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 powder, as well as in the Ba 0.95-Ca 0.05 Ce 0.9 Y 0.1 O 3 sintered pellets formed via both gelcasting (A) and isostatic pressing (B). Thermal effects occurring during heating of methylcellulose, as well as ceramic Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 powder, dried cast samples obtained from the prepared slurry, and sintered Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 samples, were examined by differential scanning calorimetry, differential thermal analysis, thermogravimetric analysis, and evolved gas analysis of volatile products using a quadrupole mass spectrometer. The measurements were performed within the temperature range of 20-1200°C in air. Based on dilatometric tests, it was found that the Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 cast samples exhibited slightly higher degree of sinterability than the 5CBCY samples obtained by isostatic pressing. In comparison with pressed pellets, higher values of total electrical conductivity in air or in a gas mixture of 5% H 2 in Ar were also attained for Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 cast samples. The Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 samples were used to construct oxygen-hydrogen electrolytes for solid oxide fuel cells. The results of the electrochemical performance of solid oxide fuel cells with Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 electrolytes were comparable to the data in the literature on BaCe 0.9 Y 0.1 O 3 electrolytes. An electrochemical study of a Ba 0.5 Sr 0.5-Co 0.8 Fe 0.2 O 3-d |Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 interface was also performed. Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-d appears to be a suitable cathode material for a Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 electrolyte.

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Ba0.95Ca0.05Ce0.9Y0.1O3 as an electrolyte for proton-conducting ceramic fuel cells

Cited by 18 publications

References 41 publications

Samples of Ba1−xSrxCe0.9Y0.1O3−δ, 0 < x < 0.1, with Improved Chemical Stability in CO2-H2 Gas-Involving Atmospheres as Potential Electrolytes for a Proton Ceramic Fuel Cell

Samples of Ba1−xSrxCe0.9Y0.1O3−δ, 0 < x < 0.1, with Improved Chemical Stability in CO2-H2 Gas-Involving Atmospheres as Potential Electrolytes for a Proton Ceramic Fuel Cell

Effect of synthesis on structural, vibrational, and electrical properties of Ba1−xCaxCe0.8Nd0.2O3−δ (BCCN, 0 ≤ x ≤ 0.01) synthesized by sol–gel auto combustion method

Utilisation of methylcellulose as a shaping agent in the fabrication of Ba0.95Ca0.05Ce0.9Y0.1O3 proton-conducting ceramic membranes via the gelcasting method

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