Synthesis of nanocrystalline 8mol% yttria stabilized zirconia by the oleate complex route

Patil, Dinesh S.; Prabhakaran, K.; Durgaprasad, C.; Gokhale, N.M.; Samui, A. B.; Sharma, S. C.

doi:10.1016/j.ceramint.2008.01.023

Cited by 20 publications

(17 citation statements)

References 24 publications

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“…68 Therefore, many researchers focused on finding the appropriate fabrication method of YSZ electrolyte. Patil et al 75 produced the YSZ powder with no-crystalline size via the oleate complex route method. The result of densification properties of YSZ powder shows the dense and compact structure is produced via glycine consumption.…”

Section: Progress Work From 2009 To 2011 On Ysz Electrolytementioning

confidence: 99%

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A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

et al. 2019

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Solid Oxide Fuel Cells (SOFCs) are an electrochemical energy converter that receives the world's attention as a power generation system of the future owing to its flexibility to consume various types of fuels, low emission of greenhouses gases, and having high efficiency reaching over 70%. A conventional SOFCs operates at high temperature, typically ranges between 800 to 1000°C. SOFCs use yttria-stabilized zirconia (YSZ) as the electrolyte, which exhibits excellent oxide ion conductivity in this temperature range. However, this temperature range poses an issue to SOFCs durability, as it leads to the degradation of the cell components. In addition, SOFCs application is limited and difficult to implement for the transportation sector and portable appliance. A viable solution is to lower the SOFCs operating temperature to intermediate (600 to 800°C ) or low (<600°C) operating temperature. The benefit of this way, cell durability will improve, as well as other advantages such as facilitates handling, assembling, dismantling, cost reduction, and expanded the SOFCs application. Nonetheless, the key challenge for the issue is finding suitable electrolyte, as YSZ have lower ionic conductivity at low and intermediate temperature range. The aim of this paper is to review the status and challenges in the attempts made to modify YSZ electrolyte within the past decade. The resulting ionic conductivity, microstructure, and densification, mechanical and thermal properties of these 'new' electrolytes critically reviewed. The targeted conductivity of modification of YSZ electrolyte must be exceeded >0.1 S cm -1 to enable high performance of SOFCs power generation systems to be realized for transportation and portable applications. Based on our knowledge, this paper is the first review which focused on the recent status and challenges of YSZ electrolyte towards lowering the operating temperature.

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Section: Progress Work From 2009 To 2011 On Ysz Electrolytementioning

confidence: 99%

“…75 types of YSZ electrolyte, which produce three different synthesis methods; hydrolysis, chemical precipitation; and liquid-phase method to develope YSZ electrolyte. 75 types of YSZ electrolyte, which produce three different synthesis methods; hydrolysis, chemical precipitation; and liquid-phase method to develope YSZ electrolyte.…”

Section: Figurementioning

confidence: 99%

A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

et al. 2019

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“…Exothermic peak between 200 and 600 • C in the DTA curves is due to the decomposition of oleic acid [20]. The thermal decomposition resulted in the formation of long chain ketones and the metal carbonates [21]. A clear exothermic peak at 840 • C corresponds to LaAlO 3 crystallization.…”

Section: Resultsmentioning

confidence: 95%

Synthesis and characterization of LaAlO3 nanopowders by emulsion combustion method

Chandradass¹,

Kim²

2009

Journal of Alloys and Compounds

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“…The small reaction field and short reaction period lead to the formation of nanosize ceramic particles [16]. This technology, also known as calcination control of chemical additives (CCCA), has been used in previous studies for the preparation of LaAlO 3 [17,18], BaTiO 3 [19], Al 2 O 3 [20][21][22], ZrO 2 [23], -Al 2 O 3 -t-ZrO 2 [24], LiCoO 2 [25], Yttria stabilized zirconia [26], ZrO 2 -CeO 2 [27], ZnO [28], Fe 2 O 3 [28], CeO 2 [28], MgO [28], and ZnO-SiO 2 [29] fine powders. Hollow spheres of Al 2 O 3 TiO 2 ZrO 2 Y 2 O 3 , and solid particles of ZrO 2 -CeO 2 , ZnO, Fe 2 O 3 CeO 2 , MgO, and BaTiO 3 can be prepared by this process.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Oleic Acid to Metal Nitrate Ratio on the Particle Size and Magnetic Properties of Lanthanum Ferrite Nanoparticles by Emulsion Method

Chandradass

Bae

Balasubramanian

et al. 2011

Materials and Manufacturing Processes

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LaFeO 3 nanoparticles of different sizes are prepared by varying the molar concentration of oleic acid to metal nitrate using emulsion combustion method. X-ray diffraction analysis confirms that LaFeO 3 nanoparticles are crystalline in nature with an orthorhombic structure. The average particle size and saturation magnetization decreases from 56 to 32 nm and 0.20 to 0.08 emu/g, as molar concentration of oleic acid to metal nitrate increases from 0.25 to 1. The Fourier transform infrared (FTIR) spectra show the lower frequency bands are assigned to Fe-O stretching vibration 579 cm −1 and O-Fe-O deformation vibration (475 and 400 cm −1 ). The experimental results suggest that molar concentration of oleic acid to metal nitrate plays an important role in the particle size and magnetic property of combustion synthesized lanthanum ferrite nanoparticles.

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Synthesis of nanocrystalline 8mol% yttria stabilized zirconia by the oleate complex route

Cited by 20 publications

References 24 publications

A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

A review on recent status and challenges of yttria stabilized zirconia modification to lowering the temperature of solid oxide fuel cells operation

Synthesis and characterization of LaAlO3 nanopowders by emulsion combustion method

The Influence of Oleic Acid to Metal Nitrate Ratio on the Particle Size and Magnetic Properties of Lanthanum Ferrite Nanoparticles by Emulsion Method

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