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

Dudek, Magdalena; Lis, Bartłomiej; Lach, Radosław; Daugėla, S.; Салкус, Т.; Kežionis, A.; Mosiałek, Michał; Sitarz, Maciej; Rapacz-Kmita, Alicja; Grzywacz, Przemysław

doi:10.3390/ma13081874

Cited by 12 publications

(1 citation statement)

References 54 publications

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“…The carbonization extent (α) as a function of time for five temperatures is depicted in Figure . To prevent the thermal decomposition of BaCeO 3 (970 °C) or decarbonation, the maximum temperature studied was 900 °C. , …”

Section: Resultsmentioning

confidence: 99%

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr_0.8Ce_0.1Y_0.1O_3−δ and Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3−δ, in the Presence of CO₂

et al. 2023

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A fundamental understanding of carbonation kinetics is essential for the development of durable proton conducting electrolysis cells that can electrochemically convert CO2 into fuels. The degradation behavior of two representative proton conducting perovskite materials, BaZr0.8Ce0.1Y0.1O3−δ (BZCY811) with low cerium content and strontium-containing Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3−δ (BSCZGY6211), was studied and analyzed using different solid–gas reaction models. These perovskite compositions are promising candidates for various electrochemical applications where a combination of high conductivity and high stability is required such as for direct CO2 conversion to fuels (or syngas). The kinetic stability of these two compositions under CO2 (and CO) was evaluated using X-ray diffraction, X-ray photoelectron spectroscopy, micro-Raman spectroscopy, CO2 temperature-programmed desorption, and N2 physisorption. Kinetic analysis of the isothermal solid–gas reaction indicated that BZCY811 powders were partially carbonated according to a first-order nucleation/nuclei growth mechanism, in which oxygen vacancies act as active nucleation sites. The degradation was not complete as a protective external carbonate layer was formed, which maintained the internal crystalline structure of BZCY811. In contrast, BSCZGY6211 was kinetically stable in the presence of CO2 with no signs of degradation at high pressures (2.0 MPa). The higher kinetic stability of the latter composition is rationalized in terms of its higher surface acidity.

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Section: Resultsmentioning

confidence: 99%

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr_0.8Ce_0.1Y_0.1O_3−δ and Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3−δ, in the Presence of CO₂

et al. 2023

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Recent Advances and Challenges in Perovskite‐Based Protonic Ceramic Electrolytes: Design Strategies and Fabrication Innovations

Nie,

Liu,

Xiao

et al. 2024

Adv Funct Materials

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Protonic ceramic electrochemical cells (PCECs) have received extensive research attention as full solid‐state, electrochemical devices that can interconvert electrical and chemical energies via rapid proton conduction at reduced temperatures. Nonetheless, the practical application of PCECs still faces numerous challenges. In addition to the development of electrode materials, the protonic ceramic electrolytes (PCEs), which are crucial for the performance and stability of PCECs, encounter issues such as poor sinterability, low ionic conductivity, and inadequate thermochemical matching. To address these obstacles, the design and optimization of protonic ceramic electrolytes have recently become essential research focuses in the field of PCECs. To achieve effective customization of the elemental composition, crystal structure, defect structure, ionic conductivity, and chemical stability, many candidates for electrolyte materials with various compositions have been proposed. This review also covers state‐of‐the‐art developments in PCE fabrication technologies, including powder synthesis, thin‐film deposition, more controllable sintering processes and interface treatments for structural integrity and ionic conductivity. This review comprehensively summarizes the most recent design approaches and optimization strategies for perovskite‐based protonic ceramic electrolyte materials and is crucial for advancing the commercialization of PCECs.

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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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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

Cited by 12 publications

References 54 publications

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr_0.8Ce_0.1Y_0.1O_3−δ and Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3−δ, in the Presence of CO₂

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr_0.8Ce_0.1Y_0.1O_3−δ and Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3−δ, in the Presence of CO₂

Recent Advances and Challenges in Perovskite‐Based Protonic Ceramic Electrolytes: Design Strategies and Fabrication Innovations

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

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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

Cited by 12 publications

References 54 publications

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr0.8Ce0.1Y0.1O3−δ and Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3−δ, in the Presence of CO2

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr0.8Ce0.1Y0.1O3−δ and Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3−δ, in the Presence of CO2

Recent Advances and Challenges in Perovskite‐Based Protonic Ceramic Electrolytes: Design Strategies and Fabrication Innovations

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

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About

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr_0.8Ce_0.1Y_0.1O_3−δ and Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3−δ, in the Presence of CO₂

Surface Basicity Controlled Degradation and Recoverability of Proton Conducting Perovskites, BaZr_0.8Ce_0.1Y_0.1O_3−δ and Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3−δ, in the Presence of CO₂