A tape calendering method as an effective way for the preparation of proton ceramic fuel cells with enhanced performance

Medvedev, Dmitry; Lyagaeva, Julia G.; Vdovin, G. K.; Береснев, С. М.; Demin, A.; Tsiakaras, Panagiotis

doi:10.1016/j.electacta.2016.05.197

Cited by 45 publications

(18 citation statements)

References 36 publications

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“…The second stage included the preparation of mixtures of the corresponding powders in an organic binder (components and their concentrations are provided elsewhere [30]). These mixtures were dried overnight to remove evaporating solvents (acetone, benzene).…”

Section: Methodsmentioning

confidence: 99%

“…Therefore, as an alternative approach, we herein propose a tape calendering method as a simple, scalable and efficient means for one-step fabrication of PCFCs. The possibility of one-step fabrication is based on our recent achievements in materials science (the selection of chemically and thermally compatible materials [28,29]) and technological (the rational parameter tuning of the tape calendering method [30,31]) fields.…”

Section: Introductionmentioning

confidence: 99%

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One-Step Fabrication of Protonic Ceramic Fuel Cells Using a Convenient Tape Calendering Method

et al. 2020

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The present paper reports the preparation of multilayer protonic ceramic fuel cells (PCFCs) using a single sintering step. The success of this fabrication approach is due to two main factors: the rational choice of chemically and mechanically compatible components, as well as the selection of a convenient preparation (tape calendering) method. The PCFCs prepared in this manner consisted of a 30 µm BaCe0.5Zr0.3Dy0.2O3–δ (BCZD) electrolyte layer, a 500 μm Ni–BCZD supporting electrode layer and a 20 μm functional Pr1.9Ba0.1NiO4+δ (PBN)–BCZD cathode layer. These layers were jointly co-fired at 1350 °C for 5 h to reach excellent gas-tightness of the electrolyte and porous structures for the supported and functional electrodes. The adequate fuel cell performance of this PCFC design (400 mW cm−2 at 600 °C) demonstrates that the tape calendering method compares well with such conventional laboratory PCFC preparation techniques such as co-pressing and tape-casting.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

One-Step Fabrication of Protonic Ceramic Fuel Cells Using a Convenient Tape Calendering Method

et al. 2020

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“…Tape-calendaring is gradual rolling of ceramic films in order to obtain an electrolyte film with a thickness of 10-30 µm on a carrier anode [28]. Thin electrolyte and anode films are rolled from plastic mixture prepared from ceramic powders with an organic binder (based, for example, on natural rubber), which are then co-rolled together to produce a two-layer anode-electrolyte film.…”

Section: Ceramic Methodsmentioning

confidence: 99%

Place of electrophoretic deposition among thin-film methods adapted to the solid oxide fuel cell technology: A short review

Pikalova¹,

Калинина²

2019

Int. J. EQ

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Thin film technologies have attracted ever-growing interest in different industrial areas. Concerning solid oxide fuel cells (SOFCs), especially devices operating in the intermediate temperature range, such technologies are applied particularly for the deposition of dense, gas-tight electrolyte films with a thickness of several µm to decrease ohmic resistance and enhance the cell performance. The main requirements for the technology selected are its low cost, simplicity of the equipment used, short deposition time and flexibility regarding the cell shape. First, we overview thin-film technologies adapted to the deposition of SOFC functional layers, discussing their strengths and weaknesses, with special attention given to electrophoretic deposition (EPD) as being the most simple and cost-effective colloidal method to fabricate different electrolyte films. Then we present the contribution of our scientific group in the development of the EPD method. The preparation of stable suspensions for the EDP is one of the key requirements for its successful implementation and reproducibility; this was considered in detail and the effect of self-stabilization in suspensions based on nanopowders (7-15 nm), obtained by the method of laser evaporation with consequent condensation, was discussed. Such suspensions, exhibiting high positive ζ-potential values (30-50 mV), were shown to be suitable for EPD without the addition of dispersants or iodine. The requirements for the electrode substrates were formulated and a model of particle aggregation near the porous substrate surface was proposed. Deposition parameters were established for different electrolyte films -commonly used yttria-stabilized zirconia, single and multiply doped CeO 2 and proton-conducting doped BaCeO 3 electrolytes. As was shown, the deposition on the highly conducting cathode substrates is simpler to implement than the EPD on non-conducting anode substrates and, in addition, it produces high quality films which render high OCV values and superior SOFC performance.

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“…Y 0.8 Ca 0.2 BaCo 4 O 7 exhibits a good electrochemical performance on BCZY71 electrolyte, achieving a maximum power density (MPD) of 0.472 W•cm −2 at 700 • C [65]. The same composition was deposited by a tape-calendering method on BaCe 0.5 Zr 0.3 Y 0.2 O 3−δ (BCZY53) electrolyte, providing an MPD of 0.308 W•cm −2 at 725 • C [66].…”

Section: Mixed Oxide-ion-electron-conducting Cathodesmentioning

confidence: 99%

Perspectives on Cathodes for Protonic Ceramic Fuel Cells

et al. 2021

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Protonic ceramic fuel cells (PCFCs) are promising electrochemical devices for the efficient and clean conversion of hydrogen and low hydrocarbons into electrical energy. Their intermediate operation temperature (500–800 °C) proffers advantages in terms of greater component compatibility, unnecessity of expensive noble metals for the electrocatalyst, and no dilution of the fuel electrode due to water formation. Nevertheless, the lower operating temperature, in comparison to classic solid oxide fuel cells, places significant demands on the cathode as the reaction kinetics are slower than those related to fuel oxidation in the anode or ion migration in the electrolyte. Cathode design and composition are therefore of crucial importance for the cell performance at low temperature. The different approaches that have been adopted for cathode materials research can be broadly classified into the categories of protonic–electronic conductors, oxide-ionic–electronic conductors, triple-conducting oxides, and composite electrodes composed of oxides from two of the other categories. Here, we review the relatively short history of PCFC cathode research, discussing trends, highlights, and recent progress. Current understanding of reaction mechanisms is also discussed.

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A tape calendering method as an effective way for the preparation of proton ceramic fuel cells with enhanced performance

Cited by 45 publications

References 36 publications

One-Step Fabrication of Protonic Ceramic Fuel Cells Using a Convenient Tape Calendering Method

One-Step Fabrication of Protonic Ceramic Fuel Cells Using a Convenient Tape Calendering Method

Place of electrophoretic deposition among thin-film methods adapted to the solid oxide fuel cell technology: A short review

Perspectives on Cathodes for Protonic Ceramic Fuel Cells

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