Dispersant effects on YSZ electrolyte characteristics for solid oxide fuel cells

Curi, M.; Ferraz, Helen Conceição; Furtado, J.G.M.; Secchi, Argimiro Resende

doi:10.1016/j.ceramint.2015.01.072

Cited by 11 publications

(4 citation statements)

References 19 publications

(17 reference statements)

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“…The monoclinic modification of ZrO 2 nanopowders is used mostly in the production of substrates for luminescent, photosensitive materials [112]; in catalysis [113,114]; and in the production of nanomaterials based on tetragonal and cubic ZrO 2 modifications, for example, in ceramic materials, including new materials with improved performance [115]. The tetragonal modification of zirconium (IV) oxide has become widely used for bioceramics in restorative dentistry [116,117] and in catalysis [118,119], and its cubic modification has become widely used for chemically resistant and thermostable high-strength nanoceramics [120] and for solid electrolytes in solid oxide fuel cells [121,122].…”

Section: Properties Of Metal Oxides In the Different States Ofmentioning

confidence: 99%

“…As already mentioned, materials based on zirconium (IV) oxide have different applications depending on the phase composition. In particular, monoclinic ZrO 2 is used as a catalyst [113,114], tetragonal ZrO 2 is used as a carrier of catalysts [118,119], and cubic ZrO 2 is used as a solid electrolyte in fuel cells of solid oxide batteries [121,122]. The degree of tetragonality or cubicity at normal temperatures depends on the size of the crystallites: the metastable tetragonal modification of ZrO 2 can be obtained under normal conditions if the size of the crystallites is less than 25-30 nm, and the metastable cubic ZrO 2 modification can be obtained if the crystallite size is less than 5-10 nm [133].…”

Section: Features Of Chemical and Physicalmentioning

confidence: 99%

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Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

Dontsova

Nahirniak

Астрелін

2019

Journal of Nanomaterials

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The features of the properties and creation of nanocomposite metal oxide materials, especially TiO2, ZnO, SnO2, ZrO2, and Fe3O4, and their applications for ecology are considered in the article. It is shown that nanomaterials based on them are very promising for use in the ecological direction, especially as sorbents, photocatalysts, and sensitive layers of gas sensors. The crystallochemical characteristics, surface structure, and surface phenomena that occur when they enter the water and air environment are given for these metal oxides, and it is shown that they play a significant role in obtaining the sorption and catalytic characteristics of these nanomaterials. Particular attention is paid to the dispersion and morphology of metal oxide particles by which their physical and chemical properties can be controlled. Synthesis methods of metal oxide nanomaterials and ways for creating of nanocomposites based on them are characterized, and it is noted that there are many methods for obtaining individual nanoparticles of metal oxides with certain properties. The main task is the correct selection and testing of parameters. The prospects for the production of metal oxide nanocomposites and their application for environmental applications are noted, which will lead to a fundamentally new class of materials and new environmental technologies with their participation.

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Section: Properties Of Metal Oxides In the Different States Ofmentioning

confidence: 99%

Section: Features Of Chemical and Physicalmentioning

confidence: 99%

Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

Dontsova

Nahirniak

Астрелін

2019

Journal of Nanomaterials

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“…Lithium ions are released from the cathode and intercalated in the anode during charging and this process is reversed when discharging. The electrolyte provides a place for lithium ions to shuttle between the cathode and anode [5] . As an efficient energy conversion device, however, the practical application of CFCs has been restricted by their severe operating requirements (e.g., high operating temperature) compared with the room-temperature operation of LIBs.…”

Section: Introductionmentioning

confidence: 99%

Advances in lithium-ion battery materials for ceramic fuel cells

2022

Energy Mater

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Lithium-ion batteries (LIBs) and ceramic fuel cells (CFCs) are important for energy storage and conversion technologies and their materials are central to developing advanced applications. Although there are many crosslinking research activities, e.g., through materials and some common scientific fundamentals employed for both LIB and CFCs, crosslinking scientific aspects to achieve a comprehensive understanding are missing. There is a lack of such a review to promote and guide further research and development in the crosslinking of LIBs and CFCs. Herein, we review the existing application of LIB materials in CFCs to discover the scientific advances of lithium-ion and proton transport cooperation and identify the new directions of Li-CFCs in the future. This review is the first to propose CFC advances, especially at low temperatures (300-600 °C) by applying LIB materials to practical devices and highlight the material properties and new device functions with enhanced performance, as well as the scientific mechanisms and principles. Furthermore, we seek to deepen the scientific understanding of materials science, ion transport mechanisms and semiconductor electrochemistry to benefit both the battery and fuel cell fields.

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“…Therefore, material selection becomes a crucial factor that influences the fuel cell performance and it requires an understanding of the basic principle of SOFCs. [12][13][14][15][16][17][18][19][20][21][22][23] Electrolyte also plays an important role that dictates the performance of solid oxide fuel cells. In SOFCs, the electrolyte is basically a dense metaloxide ceramic that solely conducts oxide ions and prevents the migration of electrons from the anode to the cathode.…”

Section: Materials Selection For Sofcsmentioning

confidence: 99%

Electrochemical properties of layered perovskite (LnxSr4-x MyFe6yO13+δ; Ln = La, Pr, Sm AND M = Co, Ni) as cathodes forintermediate - temperature solid oxide fuel cells

Kamlungsua

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Layered perovskites, Sr4Fe6O13, LaxSr4-xFe6O13, PrxSr4-xFe6O13, Smx Sr4-xFe6O13, Sr4CoxFe6-xO13, and Sr4NixFe6-xO13 have been investigated as cathode materials for intermediate – temperature solid oxide fuel cell (IT-SOFC). All layered oxides were prepared through conventional solid – state reaction method with the respective calcination and sintering temperatures of 850oC for 16 hours and 1185oC for 5 hours and they exhibited a gradual phase transformation from the pure layered phase to the perovskite phase with increasing the dopant content. In addition, the incorporation of Pr, Sm, and Co led to the increasing of electrical conductivity in PSFx, SSFx, and SFCox oxides whereas doping of La and Ni resulted in the transition in electrical conduction from semiconducting to metallic – like behaviours for LSFx and SFNix oxides. XPS analyses and thermogravimetric analyses revealed the different charge compensation mechanisms in lanthanide – and transition metal – containing oxides. The reduction in polarisation resistances with the increased dopant concentration was also observed, in general, for all oxides. The increase in the electrical conductivity and the decrease of the polarisation resistance of the synthesised oxides with increasing the dopant concentration have stemmed from the synergistic effect on the presence of both perovskite and layered phases that provided fast oxide ion diffusion channels and acted as a continuous network for electron transport.

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Dispersant effects on YSZ electrolyte characteristics for solid oxide fuel cells

Cited by 11 publications

References 19 publications

Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

Advances in lithium-ion battery materials for ceramic fuel cells

Electrochemical properties of layered perovskite (LnxSr4-x MyFe6yO13+δ; Ln = La, Pr, Sm AND M = Co, Ni) as cathodes forintermediate - temperature solid oxide fuel cells

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