Stack design and fabrication

Minh, Nguyễn Quang; Takahashi, Takehiko

doi:10.1016/b978-044489568-4/50010-4

Cited by 6 publications

(3 citation statements)

References 41 publications

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“…Comparison of standard XRD results of pure Tosoh powder, which are based on large quantities rather than small quantities placed on an adhesive tape (Figure a) demonstrate that the characteristic features in the diffraction pattern are reproduced by the sample on the tape, albeit with magnitudes considerably reduced. The peaks in the diffraction patterns from the YSZ produced via ESFS compared with commercially available pure Tosoh YSZ (both on adhesive tapes, Figure c, d) are also at the same diffraction angles, suggesting that both powders have the same YSZ cubic-fluorite crystal phase structure . Analysis of these minute quantities available thus suggests that ESFS is capable of producing tailored YSZ powder with the desired phase composition.…”

Section: Resultsmentioning

confidence: 84%

Electrospray Flame Synthesis of Yttria-Stabilized Zirconia Nanoparticles

Geier

Parker

2013

Ind. Eng. Chem. Res.

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In this study, the technological feasibility of an electrospray-based flame synthesis process for the production of thin films of nanosized metal oxide particulates was investigated. On the basis of published results on electro-hydrodynamic atomization, a spray system was designed, implemented, and tested. Initial tests focused on synthesis of yttria-stabilized zirconia (YSZ) particulates, and the results showed that aggregates with quasi-monodisperse primary particle sizes below 100 nm with cubic-fluorite crystal phase composition can be manufactured through this production route. These tests utilized organometallic solutions of Zr-n-propoxide and Y-2-methoxyethoxide in a mixture of n-propanol and 2-methoxyethanol, which were electrosprayed into the postflame flow of a multielement diffusion burner. Both theoretical analysis and experimental evidence indicate that controlled synthesis of particulate with narrow particle size distribution is feasible. The radial arrangement of electrospray emitters chosen for the initial experiments appears to be a promising spray configuration for further development.

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Section: Resultsmentioning

confidence: 84%

Electrospray Flame Synthesis of Yttria-Stabilized Zirconia Nanoparticles

Geier

Parker

2013

Ind. Eng. Chem. Res.

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“…Electrical power generation using solid oxide fuel cell (SOFC), in comparison to the conventional combustion based technologies, offers advantages in terms of higher efficiency, fuel flexibility and reduced carbon foot print (1)(2)(3). SOFCs also offer flexibility of modular design and have found applications in distributed (large kWe class) and centralized (MWe class) power generations.…”

Section: Introductionmentioning

confidence: 99%

Surface Pretreatment of Alumina Forming Alloy and Its Implication on Cr Evaporation

Aphale¹,

Narayan²,

Hu³

et al. 2018

ECS Trans.

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“…3 One of the approaches for cost reduction includes lowering of the operating temperatures to allow for the use of commercially available low cost and easily processable metallic alloys for manufacturing of the electrochemically active cell and stack components and sub-system components. 4,5 Ferritic and austenitic iron and nickel base alloys are conventionally used for the fabrication of SOFC balance-of-plant (BOP) components (fuel processing, thermal management, air management systems for example) and cell to cell interconnection (IC) that serves as current collector and gas separator (fuel and oxidant). 6,7 Formation of protective chromia scale on these alloys provides excellent long term corrosion protection under both oxidizing and reducing conditions along with desired electronic conductivity.…”

mentioning

confidence: 99%

Synthesis and Stability of Sr_xNi_yO_zChromium Getter for Solid Oxide Fuel Cells

Aphale¹,

Uddin²,

Hu³

et al. 2018

J. Electrochem. Soc.

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Stability of SrO-NiO solid solution synthesized from low cost alkaline earth and transition metal nitrate salts is studied for application as a gaseous chromium getter in solid oxide fuel cells (SOFC). Phase identification and its evolution has been examined using high temperature in-situ X-ray diffraction (HT-XRD) whereas thermal stability and morphology of compounds have been studied using XRD in combination with scanning electron microscopy (SEM). Synthesized Sr x Ni y O z powder remains stable up to 900 • C in air, whereas exposure above 950 • C leads to its dissociation into separate SrO and NiO phases. Presence of SrO in powder reacts with H 2 O and CO 2 , present in atmospheric air, resulting into pulverization due to volume change and the formation of hydroxides and carbonates. Thermogravimetric analysis (TGA) of the pulverized powders show approximately 20% weight loss due to the evaporation of hydroxyl and carbonate groups. Chemical stability of Sr x Ni y O z is considered essential in order to prevent pulverization and flaking of the getter coating applied over ceramic honeycomb or foam substrates. Chromium getter is considered a cost effective and reliable means to mitigate cathode poisoning in high temperature electrochemical systems such as solid oxide fuel cells, solid oxide electrolysis cell (SOEC) and oxygen transport membranes (OTM).

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Stack design and fabrication

Cited by 6 publications

References 41 publications

Electrospray Flame Synthesis of Yttria-Stabilized Zirconia Nanoparticles

Electrospray Flame Synthesis of Yttria-Stabilized Zirconia Nanoparticles

Surface Pretreatment of Alumina Forming Alloy and Its Implication on Cr Evaporation

Synthesis and Stability of Sr_xNi_yO_zChromium Getter for Solid Oxide Fuel Cells

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Stack design and fabrication

Cited by 6 publications

References 41 publications

Electrospray Flame Synthesis of Yttria-Stabilized Zirconia Nanoparticles

Electrospray Flame Synthesis of Yttria-Stabilized Zirconia Nanoparticles

Surface Pretreatment of Alumina Forming Alloy and Its Implication on Cr Evaporation

Synthesis and Stability of SrxNiyOzChromium Getter for Solid Oxide Fuel Cells

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Synthesis and Stability of Sr_xNi_yO_zChromium Getter for Solid Oxide Fuel Cells