Fabrication of Y-doped barium cerium zirconate thin films by electrostatic spray deposition technique for protonic ceramic fuel cell application

Pornprasertsuk, Rojana; Piyaworapaiboon, Manow; Jinawath, Supatra

doi:10.1016/j.ceramint.2014.01.155

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…26−28 It is because that film growth occurs along the most stable lattice orientation during atomic nucleation under sufficiently energetic deposition conditions such as high temperatures and low background pressures. 28 Although it has been reported that intermittent phases containing nonstoichiometric compositions are easily extruded in BCZY synthesis, 20,29,30 the XRD patterns of both the prepared film and powder perfectly matched that of perovskite BCZY, with no secondary phase. The stoichiometric composition of the PLD BCZY film was confirmed using SEM-EDS; the results are listed in Table 1.…”

Section: Resultsmentioning

confidence: 89%

High-Performance Protonic Ceramic Fuel Cells with Thin-Film Yttrium-Doped Barium Cerate–Zirconate Electrolytes on Compositionally Gradient Anodes

Bae

Lee

Jang

et al. 2016

ACS Appl. Mater. Interfaces

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In this study, we used a compositionally gradient anode functional layer (AFL) consisting of Ni-BaCe(0.5)Zr(0.35)Y(0.15)O(3-δ) (BCZY) with increasing BCZY contents toward the electrolyte-anode interface for high-performance protonic ceramic fuel cells. It is identified that conventional homogeneous AFLs fail to stably accommodate a thin film of BCZY electrolyte. In contrast, a dense 2 μm thick BCZY electrolyte was successfully deposited onto the proposed gradient AFL with improved adhesion. A fuel cell containing this thin electrolyte showed a promising maximum peak power density of 635 mW cm(-2) at 600 °C, with an open-circuit voltage of over 1 V. Impedance analysis confirmed that minimizing the electrolyte thickness is essential for achieving a high power output, suggesting that the anode structure is important in stably accommodating thin electrolytes.

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Section: Resultsmentioning

confidence: 89%

High-Performance Protonic Ceramic Fuel Cells with Thin-Film Yttrium-Doped Barium Cerate–Zirconate Electrolytes on Compositionally Gradient Anodes

Bae

Lee

Jang

et al. 2016

ACS Appl. Mater. Interfaces

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“…Afterward, the powder was calcined at 1100 • C for 6 h in a furnace, and this calcination temperature was sufficient to preserve the phase of the composite formed. The comparable calcination temperature was also recommended for the similar anode composite powder synthesised by solid-state reaction and ball milling methods [19,20].…”

Section: Powder Preparationmentioning

confidence: 99%

Understanding the Impact of Sintering Temperature on the Properties of Ni–BCZY Composite Anode for Protonic Ceramic Fuel Cell Application

et al. 2023

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Understanding the impact of sintering temperature on the physical and chemical properties of Ni-BaCe0.54Zr0.36Y0.1O3-δ (Ni-BCZY) composite anode is worthy of being investigated as this anode is the potential for protonic ceramic fuel cell (PCFC) application. Initially, NiO–BCZY composite powder with 50 wt% of NiO and 50 wt% of BCZY is prepared by the sol–gel method using citric acid as the chelating agent. Thermogravimetric analysis indicates that the optimum calcination temperature of the synthesised powder is 1100 °C. XRD result shows that the calcined powder exists as a single cubic phase without any secondary phase with the lattice parameter (a) of 4.332 Å. FESEM analysis confirms that the powder is homogeneous and uniform, with an average particle size of 51 ± 16 nm. The specific surface area of the calcined powder measured by the Brunauer–Emmett–Teller (BET) technique is 6.25 m2/g. The thickness, porosity, electrical conductivity and electrochemical performance of the screen-printed anode are measured as a function of sintering temperature (1200–1400 °C). The thickness of the sintered anodes after the reduction process decreases from 28.95 μm to 26.18 μm and their porosity also decreases from 33.98% to 26.93% when the sintering temperature increases from 1200 °C to 1400 °C. The electrical conductivities of the anodes sintered at 1200 °C, 1300 °C and 1400 °C are 443 S/cm, 633 S/cm and 1124 S/cm at 800 °C, respectively. Electrochemical studies showed that the anode sintered at 1400 °C shows the lowest area specific resistance (ASR) of 1.165 Ω cm2 under a humidified (3% H2O) gas mixture of H2 (10%) and N2 (90%) at 800 °C. Further improvement of the anode’s performance can be achieved by considering the properties of the screen-printing ink used for its preparation.

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“…[24][25][26][27] The Y-doped BaCeO 3 -based and BaZrO 3 -based perovskite, BaCe 0.7 Zr 0.1 Y 0.2 O 3-δ (BCZY) proton-conducting electrolytes have been widely used for P-RSOCs due to their high conductivity and good chemical stability. [28][29][30][31][32][33] Very recently, Liu group 7 reported a BaCe 0.7 Zr 0.1 Y 0.2-x Yb x O 3-δ (BCZYYb) electrolyte that possesses pure proton conduction at intermediate temperatures for PCFCs.…”

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confidence: 99%

Modification of Oxygen-Ionic Transport Barrier of BaCo_0.4Zr_0.1Fe_0.4Y_0.1O₃Steam (Air) Electrode by Impregnating Samarium-Doped Ceria Nanoparticles for Proton-Conducting Reversible Solid Oxide Cells

Saqib

Lee

Shin

et al. 2019

J. Electrochem. Soc.

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A reliable and high performance proton-conducting reversible solid oxide cell (P-RSOCs) is developed to generate electricity in a protonic ceramic fuel cell (PCFC) mode and to generate hydrogen gas in a protonic ceramic electrolysis (PCEC) mode in a single electrochemical device. Herein we propose a modified triple conducting (H + /O 2− /e − ) steam (air) electrode through the infiltration of an Sm 0.2 Ce 0.8 O 2-δ (SDC) oxygen-ionic conductor, because the polarization resistance (R p ) of P-RSOCs mainly comes from the steam (air) electrode in both the operational modes. The SDC-infiltrated nanoparticles on the composite BaCo 0.4 Zr 0.1 Fe 0.4 Y 0.1 O 3+δ (BCZFY)-BaCe 0.7 Zr 0.1 Y 0.2-x Yb x O 3-δ (BCZYYb) electrode result in a considerable improvement in the oxygen reduction reaction and oxygen evolution reaction catalytic activity at 600-700°C due to the extension of electrochemical active sites with the increasing of surface area. In addition, the enhanced ionic conduction of a triple conducting composite using infiltrated oxygen-ionic SDC conductors leads to an effective decrease in the R p (1.388→1.079 Ω•cm 2 at 600°C symmetric cell) with improved cell performance in both the PCFC and PCEC modes. Furthermore, the NiO-BCZYYb anode-supported cell with the SDC-infiltrated composite BCZFY-BCZYYb air electrode shows excellent durability in the PCFC and PCEC modes without any degradation during 250 h each at 650°C.

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Fabrication of Y-doped barium cerium zirconate thin films by electrostatic spray deposition technique for protonic ceramic fuel cell application

Cited by 8 publications

References 21 publications

High-Performance Protonic Ceramic Fuel Cells with Thin-Film Yttrium-Doped Barium Cerate–Zirconate Electrolytes on Compositionally Gradient Anodes

High-Performance Protonic Ceramic Fuel Cells with Thin-Film Yttrium-Doped Barium Cerate–Zirconate Electrolytes on Compositionally Gradient Anodes

Understanding the Impact of Sintering Temperature on the Properties of Ni–BCZY Composite Anode for Protonic Ceramic Fuel Cell Application

Modification of Oxygen-Ionic Transport Barrier of BaCo_0.4Zr_0.1Fe_0.4Y_0.1O₃Steam (Air) Electrode by Impregnating Samarium-Doped Ceria Nanoparticles for Proton-Conducting Reversible Solid Oxide Cells

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Fabrication of Y-doped barium cerium zirconate thin films by electrostatic spray deposition technique for protonic ceramic fuel cell application

Cited by 8 publications

References 21 publications

High-Performance Protonic Ceramic Fuel Cells with Thin-Film Yttrium-Doped Barium Cerate–Zirconate Electrolytes on Compositionally Gradient Anodes

High-Performance Protonic Ceramic Fuel Cells with Thin-Film Yttrium-Doped Barium Cerate–Zirconate Electrolytes on Compositionally Gradient Anodes

Understanding the Impact of Sintering Temperature on the Properties of Ni–BCZY Composite Anode for Protonic Ceramic Fuel Cell Application

Modification of Oxygen-Ionic Transport Barrier of BaCo0.4Zr0.1Fe0.4Y0.1O3 Steam (Air) Electrode by Impregnating Samarium-Doped Ceria Nanoparticles for Proton-Conducting Reversible Solid Oxide Cells

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Modification of Oxygen-Ionic Transport Barrier of BaCo_0.4Zr_0.1Fe_0.4Y_0.1O₃Steam (Air) Electrode by Impregnating Samarium-Doped Ceria Nanoparticles for Proton-Conducting Reversible Solid Oxide Cells