Fabrication and characterization of a tubular ceramic fuel cell based on BaZr0.1Ce0.7Y0.1Yb0.1O3-δ proton conducting electrolyte

Hanifi, Amir Reza; Sandhu, Navjot; Etsell, Thomas H.; Luo, Jing‐Li; Sarkar, Partha

doi:10.1016/j.jpowsour.2016.12.010

Cited by 46 publications

(26 citation statements)

References 38 publications

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“…As can be seen, the outputs achieved at intermediate temperature (e.g., 0.590 W cm −2 at 600 °C) are close to the performance characteristics of planar cells based on Ni‐BZCYYb|BZCYYb precursor (e.g., 0.66 W cm −2 at 600 °C ), and better than the outputs of MT‐SOFCs with configuration of Ni‐BZCYYb|BZCYYb|LSCF‐BZCYYb (e.g., 0.331 W cm −2 at 600 °C ). In particular, the as‐prepared cells show 78% improvement power output at 600 °C, compared to the similar BZCYYb electrolyte based cells.…”

Section: Resultsmentioning

confidence: 99%

“…More surface area provides more open sites for anode reactions and can lead to increased length of TPBs [55]. According to Hanifi et al [36], the pores can contribute to more efficient gas diffusion and removal of the reaction products, thus reduce the concentration polarization. The separation between the BZCYYb and Ni phases can contribute to the electrochemical reaction rate, thus decrease the activation polarization.…”

Section: Cell Morphological Propertiesmentioning

confidence: 99%

“…However, the maximum power densities of MT‐SOFCs with conventional YSZ and Ce 0.8 Sm 0.2 O 1.9 (SDC) electrolytes were only about 0.018 W cm −2 at 800 °C , . Considering the high conductivity of proton conductors, it makes more sense to develop MT‐SOFCs based on BZCYYb electrolyte as an effective approach to promote the electrochemical performance .…”

Section: Introductionmentioning

confidence: 99%

“…Recently, phase‐inversion , , slip casting , dip coating , solution coat , suspension coat , , atmospheric plasma spray , and spin coating methods have been reported to fabricate proton conducting SOFCs based on BZCYYb electrolyte. While most of the studies have been focused on the planar designs, there are limited studies on tubular SOFCs, which raised significant interest in proton conducting MT‐SOFCs, by leveraging these merits of proton conductor as well as micro‐tubular configuration.…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr_0.1Ce_0.7Y_0.1Yb_0.1O₃₋_δ Proton Conducting Electrolyte

et al. 2019

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Anode‐supported micro‐tubular SOFCs based on a proton and oxide ion mixed conductor electrolyte, BaZr0.1Ce0.7Y0.1Yb0.1O3−δ (BZCYYb), have been successfully fabricated via phase‐inversion process. Typical micro‐tubular cell with the configuration of Ni‐BZCYYb|BZCYYb|La0.6Sr0.4Co0.2Fe0.8O3–δ, consists of anode support, electrolyte and cathode with thicknesses of 200, 12, and 10 μm, respectively. The cells show excellent electrochemical performance with the peak power densities of 1.040, 0.902, 0.721, and 0.590 W cm−2 at 750, 700, 650, and 600 °C, respectively, with humidified (3 vol.% H2O) hydrogen as fuel and ambient air as oxidant. The AC impedance spectroscopy result shows low concentration polarization values of 0.016–0.021 Ω cm2 at 750–600 °C. Further, significant performance enhancement is observed during long‐term stability test at 600 and 750 °C under constant voltage of 0.5 and 0.7 V over 120 h, respectively, indicating excellent stability of BZCYYb under fuel cell operating condition. The high performance is attributed to high‐quality cell, validated by the dense, crack‐free BZCYYb electrolyte film supported by the anode with micro sponge‐like pores.

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Section: Resultsmentioning

confidence: 99%

Section: Cell Morphological Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr_0.1Ce_0.7Y_0.1Yb_0.1O₃₋_δ Proton Conducting Electrolyte

et al. 2019

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“…13,14 As humidity is present in every fuel cell, and CO 2 is produced when hydrocarbons are used as fuel, this is an important issue for researchers to solve. On the other hand, Zirconate based perovskites are stable, both mechanically and chemically.…”

mentioning

confidence: 99%

High Performance Tubular Solid Oxide Fuel Cell Based on Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3-δProton Conducting Electrolyte

Amiri

Singh

Sandhu

et al. 2018

J. Electrochem. Soc.

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In this work, synthesis and characterization of an anode supported tubular solid oxide fuel cell based on Ba 0.5 Sr 0.5 Ce 0.6 Zr 0.2 Gd 0.1 Y 0.1 O 3-δ (BSCZGY) electrolyte has been investigated. Anode-supported Ni -yttria-stabilized zirconia (YSZ) anode was fabricated via slip casting; BSCZGY electrolyte and BSCZGY -La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) composite cathode were coated on support using dip coating, respectively. The chemical compatibility of fuel cell components at sintering temperatures has been investigated by powder X-ray diffraction, and no severe reactions were detected. Electrochemical examination under air/H 2 + 3 vol. % H 2 O showed superior performance achieving a maximum power density of 1 W/cm 2 at 850 • C, among the best compared to tubular -geometry oxygen conductor solid oxide fuel cells reported earlier and one of the highest reported for a proton conductor electrolyte in literature. Electrochemical impedance spectroscopy was used to examine the electrochemical performance of the full cell at different temperatures, and a detailed analysis was done to distinguish the contribution of ohmic and polarization resistances of the cell. ASR values were 3.47 .cm 2 , 1.81 .cm 2 , 1.23 .cm 2 , and 1.05 .cm 2 at 600, 700, 800, and 850 • C, respectively. Analysis of activation energy associated with charge and mass transfer based on fitting of impedances revealed that concentration polarization is the major contributor to the total resistance. The long-term stability for more than 96 hours of operation under load showed no significant degradation, which demonstrated the steady behavior of the cell. A solid oxide fuel cell (SOFC) is a solid-state electrochemical device which converts the chemical energy stored in the fuel directly into electrical energy resulting in high efficiency which along with low environmental impact, quiet operation, and low maintenance makes SOFC highly suitable for stationary power generation applications. 1Traditional SOFCs employ Ni-YSZ cermet, oxide-ion conducting yttria-stabilized zirconia (YSZ), and lanthanum strontium manganite as the anode, electrolyte and cathode, respectively.2 To reduce the overpotentials associated with these materials, the cell needs to run at elevated temperatures near 1000• C. 3 This negatively affects the choice of available materials mostly for interconnects and sealants and their long-term stability. 4 To reduce the operating temperature of SOFC, one of the alternative is to develop new materials for cell components. Oxide ion conducting electrolytes La 0.9 Sr 0.1 Ga 0.

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From Electrolyte and Electrode Materials to Large‐Area Protonic Ceramic Fuel Cells: A Review

Guo,

Jiang,

et al. 2024

Adv Funct Materials

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Fuel cells can efficiently convert the chemical energy in fuels like hydrogen and methane into electricity and are an important component for the forthcoming hydrogen society. Compared with conventional solid oxide fuel cells (SOFCs) and proton exchange membrane fuel cells (PEMFCs), protonic ceramic fuel cells (PCFCs) using proton conducting solid oxides as the electrolyte operate at intermediate temperature (400–700 °C), enabling the reduction in cost by using inexpensive catalysts and structural materials. In the last couple of decades, the development of electrolyte and electrode materials for PCFCs has seen significant advances, including fabrication of large‐size cells, promoting PCFCs to step out of the lab toward real applications. This review provides a historic overview of the development of proton conducting oxides, summarizes recent progress on the development of electrolyte and electrode materials and large‐size cells, and discusses present problems and challenges ahead.

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Fabrication and characterization of a tubular ceramic fuel cell based on BaZr0.1Ce0.7Y0.1Yb0.1O3-δ proton conducting electrolyte

Cited by 46 publications

References 38 publications

Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr_0.1Ce_0.7Y_0.1Yb_0.1O₃₋_δ Proton Conducting Electrolyte

Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr_0.1Ce_0.7Y_0.1Yb_0.1O₃₋_δ Proton Conducting Electrolyte

High Performance Tubular Solid Oxide Fuel Cell Based on Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3-δProton Conducting Electrolyte

From Electrolyte and Electrode Materials to Large‐Area Protonic Ceramic Fuel Cells: A Review

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Fabrication and characterization of a tubular ceramic fuel cell based on BaZr0.1Ce0.7Y0.1Yb0.1O3-δ proton conducting electrolyte

Cited by 46 publications

References 38 publications

Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr0.1Ce0.7Y0.1Yb0.1O3−δ Proton Conducting Electrolyte

Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr0.1Ce0.7Y0.1Yb0.1O3−δ Proton Conducting Electrolyte

High Performance Tubular Solid Oxide Fuel Cell Based on Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-δProton Conducting Electrolyte

From Electrolyte and Electrode Materials to Large‐Area Protonic Ceramic Fuel Cells: A Review

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Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr_0.1Ce_0.7Y_0.1Yb_0.1O₃₋_δ Proton Conducting Electrolyte

Enhancement of Electrochemical Properties, Impedance and Resistances of Micro‐tubular IT‐SOFCs with Novel Asymmetric Structure Based on BaZr_0.1Ce_0.7Y_0.1Yb_0.1O₃₋_δ Proton Conducting Electrolyte

High Performance Tubular Solid Oxide Fuel Cell Based on Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3-δProton Conducting Electrolyte