A novel anode supported BaCe0.7Ta0.1Y0.2O3−δ electrolyte membrane for proton-conducting solid oxide fuel cell

Bi, Lei; Zhang, Shangquan; Fang, Shumin; Tao, Zetian; Peng, Ranran; Liu, Wei

doi:10.1016/j.elecom.2008.08.024

Cited by 111 publications

(40 citation statements)

References 25 publications

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“…It should be acknowledged that suspension spray method has been used to develop either electrode or electrolyte before [31][32][33]37]. Nonetheless, spray-modified pressing here is different from that method technologically, and has not been published heretofore to produce proton-conducting electrolyte except a Gd-doped CeO 2 electrolyte [38].…”

Section: Introductionmentioning

confidence: 90%

“…Directly reducing the electrolyte thickness offers a comparatively simple and effective way to achieve high cell performance. While methods such as dry-pressing [22], tape casting [23], screen printing [24], slurry spin-coating [25][26][27][28], etc., are readily available to fabricate electrolytes like Samaria-doped ceria (SDC), yttria-stabilized zirconia (YSZ), the approach used most frequently to prepare BaZr 0.1 Ce 0.7 Y 0.2 O 3-d (BZCY) electrolyte based fuel cells has been limited to dry-pressing [29,30] or spray-coating [31][32][33] to date. Dry pressing method is a cost-effective method.…”

Section: Introductionmentioning

confidence: 99%

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A Performance Study of Solid Oxide Fuel Cells With BaZr_0.1Ce_0.7Y_0.2O_3–δ Electrolyte Developed by Spray‐Modified Pressing Method

et al. 2012

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Fuel cells with BaZr0.1Ce0.7Y0.2O3–δ (BZCY) proton‐conducting electrolyte is fabricated using spray‐modified pressing method. In the present study the spray‐modified pressing technology is developed to prepare thin electrolyte layers on porous Ni‐BZCY anode supports. SEM data show the BZCY electrolyte film is uniform and dense, well‐bonded with the anode substrate. An anode‐supported fuel cell with BZCY electrolyte and Ba0.5Sr0.5Co0.8Fe0.2O3–δ (BSCF) cathode is characterized from 600 to 700 °C using hydrogen as fuel and ambient air as oxidant. Maximum power density of 536 mW cm–2 along with a 1.01 V OCV at 700 °C is obtained. Impedance spectra show that Ohmic resistances contribute minor parts to the total ones, for instance, only ~23% when operating at 600 °C. The results demonstrate that spray‐modified pressing technology offers a simple and effective way to fabricate quality electrolyte film suitable to operate in intermediate temperature.

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Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

A Performance Study of Solid Oxide Fuel Cells With BaZr_0.1Ce_0.7Y_0.2O_3–δ Electrolyte Developed by Spray‐Modified Pressing Method

et al. 2012

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“…Besides the electrolyte resistance, the ohmic resistance also includes the electronic resistance of the electrodes and the interfacial resistance. Actually, [13], even though they are far larger than well-known cathode materials for oxygen ion conductor oxides [47]. Thus, these results point out that the development of highly performing electrodes, in particular cathodes, still remains a big challenge.…”

Section: Ni-bcy10/epd 2/lscf-10ybbc (Fc2) Ni-bcy10/epd 3/lscf-10ybbcmentioning

confidence: 95%

“…Perovskite-type oxides such as doped barium cerate, doped barium zirconate and their solid solutions exhibit high protonic conductivity and low activation energy in a temperature range below 700°C [1][2][3][4][5][6]. Recently, several papers showed some first promising results of protonic fuel cells fabricated by using different electrolyte deposition techniques, such as screen printing [7,8], spin coating [9], co-pressing [10] and suspension spray [11][12][13].…”

Section: Introductionmentioning

confidence: 98%

Anode Supported Protonic Solid Oxide Fuel Cells Fabricated Using Electrophoretic Deposition

et al. 2011

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Intermediate temperature solid oxide fuel cells (IT‐SOFCs) were fabricated depositing proton conducting BaCe0.9Y0.1O3–x (BCY10) thick films on cermet substrates made of nickel oxide–yttrium doped barium cerate (NiO–BCY10) using electrophoretic deposition (EPD) technique. The influence of the EPD parameters on the microstructure and electrical properties of BCY10 thick films was investigated. Deposited BCY10 thick films together with green anode substrates were co‐sintered in a single heating treatment at 1,550 °C for 2 h to obtain dense electrolyte and suitably porous anodes. The half‐cells were characterised by field emission scanning electron microscopy (FE‐SEM) and by X‐ray diffraction (XRD) analysis. A composite cathode specifically developed for BCY electrolytes, made of La0.8Sr0.2Co0.8Fe0.2O3(LSCF, mixed oxygen‐ion/electronic conductor) and BaCe0.9Yb0.1O3–δ (10YbBC, mixed protonic/electronic conductor), was used. Fuel cells were prepared by slurry coating the composite cathode on the co‐sintered half‐cells. Fuel cell tests and electrochemical impedance spectroscopy (EIS) were performed in the 550–700 °C temperature range. A maximum power density of 296 mW cm–2 was achieved at 700 °C for electrolyte deposited at 60 V for 1 min.

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“…Electrode materials for Proton Conducting Solid Oxide Fuel Cells (PCFCs), membranes for hydrogen production, oxygen separators and electrolysers should be porous (about 30% porosity is necessary) and should have high protonic and electronic conductivity. Moreover, they should be chemically stable and provide active centers for hydrogen or oxygen gas ionization [5][6][7][8][9][10][11][12]. Simultaneous fulfilling all these conditions is not simple, especially in case of low-and intermediate temperature SOFCs.…”

Section: Introductionmentioning

confidence: 99%

INFLUENCE OF PORE FORMERS ON ELECTRICAL PROPERTIES OF CaTi0.9Fe0.1O3-δ PEROVSKITE-TYPE CERAMICS

Lendze¹,

Mielewczyk‐Gryń²,

Gdula-Kasica³

et al. 2011

Advances in Materials Sciences

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Porous CaTi 0.9 Fe 0.1 O 3-δ (CTF) perovskites were synthesized by the standard solid state method at different sintering temperatures with carbon black (CB), corn starch (CS) and potato starch (PS) as pore-forming agents. The ceramic samples of porosity between 9% and 42% with 5 -40 µm pore sizes, were obtained by a 6 h sintering at either 1130º C or 1200º C of precursor powder prepared at 1470º C. X-ray diffraction analysis proved the existence of orthorhombic single-phase perovskites crystalline structure. Electrical conductivity at 800° C was between 1.42 ×10 −2 S cm −1 and 1.86×10 −3 Scm −1 . The conductivity markedly depended on the sample porosity. It should be noted that 30% of porosity, resulted in reduction of conductivity by less than one order of magnitude. Activation energy of conductivity varied between 0.41 and 0.56 eV. Cornstarch has been chosen as the most suitable pore-forming agent for obtaining the cathode of good properties. The best amount of the cornstarch has been proposed as between 5 and 10%.

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A novel anode supported BaCe0.7Ta0.1Y0.2O3−δ electrolyte membrane for proton-conducting solid oxide fuel cell

Cited by 111 publications

References 25 publications

A Performance Study of Solid Oxide Fuel Cells With BaZr_0.1Ce_0.7Y_0.2O_3–δ Electrolyte Developed by Spray‐Modified Pressing Method

A Performance Study of Solid Oxide Fuel Cells With BaZr_0.1Ce_0.7Y_0.2O_3–δ Electrolyte Developed by Spray‐Modified Pressing Method

Anode Supported Protonic Solid Oxide Fuel Cells Fabricated Using Electrophoretic Deposition

INFLUENCE OF PORE FORMERS ON ELECTRICAL PROPERTIES OF CaTi0.9Fe0.1O3-δ PEROVSKITE-TYPE CERAMICS

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A novel anode supported BaCe0.7Ta0.1Y0.2O3−δ electrolyte membrane for proton-conducting solid oxide fuel cell

Cited by 111 publications

References 25 publications

A Performance Study of Solid Oxide Fuel Cells With BaZr0.1Ce0.7Y0.2O3–δ Electrolyte Developed by Spray‐Modified Pressing Method

A Performance Study of Solid Oxide Fuel Cells With BaZr0.1Ce0.7Y0.2O3–δ Electrolyte Developed by Spray‐Modified Pressing Method

Anode Supported Protonic Solid Oxide Fuel Cells Fabricated Using Electrophoretic Deposition

INFLUENCE OF PORE FORMERS ON ELECTRICAL PROPERTIES OF CaTi0.9Fe0.1O3-δ PEROVSKITE-TYPE CERAMICS

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A Performance Study of Solid Oxide Fuel Cells With BaZr_0.1Ce_0.7Y_0.2O_3–δ Electrolyte Developed by Spray‐Modified Pressing Method

A Performance Study of Solid Oxide Fuel Cells With BaZr_0.1Ce_0.7Y_0.2O_3–δ Electrolyte Developed by Spray‐Modified Pressing Method