Studies on structural, morphological and electrical properties of Ce1−xErxO2−δ (x = 0.05–0.20) as solid electrolyte for IT – SOFC

Stojmenović, Marija; Bošković, S.; Žunić, M.; Babić, Biljana; Matović, Branko; Bajuk‐Bogdanović, Danica; Mentus, Slavko

doi:10.1016/j.matchemphys.2015.01.036

Cited by 21 publications

(55 citation statements)

References 58 publications

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“…In this way it was confirmed again that the thermally treated samples had better-ordered structure. Besides, the presence, i.e., absence of above mentioned Raman modes ( already reported in our previous work [44]. All images show that the crystallites tended to agglomerate and form aggregates.…”

Section: A C C E P T E D Accepted Manuscriptsupporting

confidence: 71%

“…Raman spectra of all nanometric single-phase solid solutions already reported in our previous work [44].The main feature of the first order Raman spectrum of pure CeO 2 is an F 2g mode located at 465 cm -1 [35]. In pure and doped CeO 2 powders obtained by SPRT method this mode is shifted to lower energies (458 cm −1 ), with increased line width and pronounced asymmetry at low energy side [35].…”

Section: Resultsmentioning

confidence: 65%

“…Moreover, in the spectrum of Er 3+ doped CeO 2 obtained before thermal treatment additional modes can be observed at around 550 and 600 cm −1 [44]. The Raman mode of the second order at around 600 cm −1 is also related to the particle size.…”

Section: Resultsmentioning

confidence: 84%

“…With the aim to compare properties of synthesized nanopowders Ce 1-x Er x O 2-δ (x = 0.05-0.20), the characterization of powders obtained at room temperature (25 ºC) [44], and those calcined at 600, 900 and 1200 ºC was performed. The characterization techniques included X-ray powder …”

Section: Instrumentsmentioning

confidence: 99%

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Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1−Er O2−δ (x = 0.05–0.20) as a pigment

et al. 2015

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Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1-xErxO2-(x = 0.05-0.20) as a pigment This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. KAUST Repository M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT AbstractCeramic pigments based on cerium oxide were synthesized by self-propagating room temperature method and their color properties were assessed from the viewpoint of potential environmentally nontoxic pink pigments. Thermal stabilities of the pigments were examined at 600, 900 and 1200 ºC. According to X-ray powder diffraction and Raman spectroscopy results, all obtained pigments were single-phase solid solutions of cerium oxide, independent of the concentration of dopants. The X-ray analysis showed that the crystallites were of nanometric dimensions, as recorded and by transmission electron microscopy analysis. Color characteristics of solid solutions, which depended on concentracion erbium ions and calcination temperature, M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPTand their position in the chromaticity diagram were studied by ultraviolet-visible spectrophotometry, which confirmed potential application of environmentally friendly pigments of desired color. The color efficiency of pigments was also evaluated by colorimetric analysis.

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Section: A C C E P T E D Accepted Manuscriptsupporting

confidence: 71%

Section: Resultsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 84%

Section: Instrumentsmentioning

confidence: 99%

See 2 more Smart Citations

Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1−Er O2−δ (x = 0.05–0.20) as a pigment

et al. 2015

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“…With application of very well developed electrochemical impedance spectroscopy method for studying the electrical properties of solid electrolytes [17,19,21,23,31,[63][64][65][66], beside the total electrical conductivity, it is possible to get the information about the separate contribution of bulk and grain boundary resistance. Additionally, it is possible to get the information about the electrochemical processes at the electrolyte/metal boundaries.…”

Section: Electrical Properties Of Sintered Samples Cementioning

confidence: 99%

Structural, morphological and electrical properties of Ce1−Ru O2−δ (x=0.005–0.02) solid solutions

Stojmenović

Žunić

Gulicovski

et al. 2016

Ceramics International

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Microstructural and electrical investigation of flash-sintered Gd/Sm-doped ceria

et al. 2017

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Ceria-based ceramics can be considered among the most promising solid electrolytes\ud for intermediate-temperature solid oxide fuel cells (IT-SOFC). In the\ud present work, variously doped nanocrystalline ceria powders were flash-sintered,\ud and the role of doping (Gd and Sm, 5–20 mol%) and sintering aid (Li and\ud Co) on the final microstructure and the electrical behavior was investigated. Gdor\ud Sm-doped nanocrystalline ceria powders were synthesized by co-precipitation\ud method using ammonia solution as precipitating agent. The synthesized\ud nanopowders were characterized by DSC-TG, XRD, and nitrogen physisorption\ud analysis. The nanopowders were isostatically pressed and flash-sintered. The\ud relative density was measured by hydrostatic balance, and the corresponding\ud microstructure was observed by SEM. The electrical behavior was studied by\ud EIS. Flash-sintered powder pellets showed different behaviors depending on the\ud dopant and sintering aid. The electrical conductivity of the samples increased by\ud increasing the relative density. Fully dense Gd-doped ceria samples, synthesized\ud by co-precipitation, were obtained by flash sintering in very short times at\ud 700 C. The total conductivity was comparable to that measured on samples\ud sintered with conventional route at much higher temperatures such as 1500 C

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Studies on structural, morphological and electrical properties of Ce1−xErxO2−δ (x = 0.05–0.20) as solid electrolyte for IT – SOFC

Cited by 21 publications

References 58 publications

Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1−Er O2−δ (x = 0.05–0.20) as a pigment

Influence of temperature and dopant concentration on structural, morphological and optical properties of nanometric Ce1−Er O2−δ (x = 0.05–0.20) as a pigment

Structural, morphological and electrical properties of Ce1−Ru O2−δ (x=0.005–0.02) solid solutions

Microstructural and electrical investigation of flash-sintered Gd/Sm-doped ceria

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