Electrospun zirconia nanofibers and corresponding formation mechanism study

Sun, Guoxun; Liu, Futian; Bi, Jianqiang; Wang, Chang‐An

doi:10.1016/j.jallcom.2015.03.068

Cited by 18 publications

(7 citation statements)

References 27 publications

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“…It indicates that the crystallinity was higher and the grain size was larger for zirconia fibers prepared at higher calcination temperatures. Previously, similar XRD pattern evolution with a rise in calcination temperature was observed for 3 mol% Y2O3-ZrO2 nanofibers consisted of t-ZrO2 grains and prepared from zirconium acetate/yttrium nitrate/polyvinyl pyrrolidone fibers [27]. Detected by an XRD analysis increase in grain size with a rise in calcination temperature was confirmed by SEM images (Figure 2).…”

Section: Resultssupporting

confidence: 81%

Morphology and Mechanical Properties of 3Y-TZP Nanofiber Mats

et al. 2020

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The mats of yttria-stabilized tetragonal zirconia nanofibers were prepared using electrospinning. The effect of calcination temperature in the range of 600–1200 °C on their microstructure, phase composition and mechanical properties was investigated. Phase composition of the nanofibers did not change in all ranges of the calcination temperatures, while the average grain size increased from 8 to 39 nm. Nanoindentation testing of the mats showed a decrease in the hysteresis loop energy in samples with higher calcination temperature. Hardness and the elastic modulus measured with the indentation technique were the highest for the mats calcined at 900 °C.

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Section: Resultssupporting

confidence: 81%

Morphology and Mechanical Properties of 3Y-TZP Nanofiber Mats

et al. 2020

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“…The weight loss region below 240°C could be attributed to the evaporation of the residual solvents and moisture, and the weight loss in the range of 240–380°C was due to the burnout of chlorine, decomposition, and carbonization of polymer, respectively (Sun et al., 2015). Moreover, the weight loss between 380°C and 900°C corresponded to the expulsion of water molecules formed through dehydroxylation of the materials along with the removal of residual carbon via oxidation, and some changes among different crystalline phases might happen at the same time (Sun et al., 2015). There was no significant weight loss above 900°C, and the remaining weight was about 60%, indicating that chlorine was eliminated and polymer was decomposed completely at this temperature.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and characterization of ZrO₂ nanofibers by critical bubble electrospinning for high-temperature-resistant adsorption and separation

Wang

2019

Adsorption Science & Technology

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In this study, a novel and simple approach to fabricate zirconium dioxide (ZrO 2) nanofibers by critical bubble electrospinning and subsequent thermal treatment was reported. The influences of different matrixes, weight percentages, heating rates, post-processing techniques, and with/without carbonization were discussed. The fiber size grew linearly with the increasing amounts of particles added. In addition, ZrOCl 2 /PAN composite fibers were converted to ZrO 2 nanofibers after high-temperature calcination, whose crystal structure was cubic phase of ZrO 2 after 1000 C, and the obtained ZrO 2 nanofibers shows excellent high-temperature-resistant adsorption and separation properties.

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“…These nanofibers of c-ZrO 2 can be used as a part of an electrode of solid oxide fuel cells for improved electrode performance, as was shown in [10]. In [11], 3 mol% Y 2 O 3 -stabilized zirconia nanofibers composed of t-ZrO 2 grains were obtained. The electrospun macroporous membranes of t-ZrO 2 nanofibers providing efficient gas transport are prospective for catalytic applications, for example, in hydrogenation [12] and oxidation [13] processes.…”

Section: Introductionmentioning

confidence: 88%

Microstructure and Phase Composition of Yttria-Stabilized Zirconia Nanofibers Prepared by High-Temperature Calcination of Electrospun Zirconium Acetylacetonate/Yttrium Nitrate/Polyacrylonitrile Fibers

Rodaev

Razlivalova

Tyurin

et al. 2019

Fibers

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For the first time, dense nanofibers of yttria-stabilized tetragonal zirconia with diameter of ca. 140 nm were prepared by calcination of electrospun zirconium acetylacetonate/yttrium nitrate/polyacrylonitrile fibers at 1100–1300 °C. Ceramic filaments were characterized by scanning electron microscopy, X-ray diffractometry, and nitrogen adsorption. With a rise in the calcination temperature from 1100 to 1300 °C, the fine-grain structure of the nanofibers transformed to coarse-grain ones with the grain size equal to the fiber diameter. It was revealed that fully tetragonal nanofibrous zirconia may be obtained at Y2O3 concentrations in the range of 2–3 mol% at all used calcination temperatures. The addition of 2–3 mol% yttria to zirconia inhibited ZrO2 grain growth, preventing nanofibers’ destruction at high calcination temperatures. Synthesized well-sintered, non-porous, yttria-stabilized tetragonal zirconia nanofibers can be considered as a promising material for composites’ reinforcement, including composites with ceramic matrix.

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Electrospun zirconia nanofibers and corresponding formation mechanism study

Cited by 18 publications

References 27 publications

Morphology and Mechanical Properties of 3Y-TZP Nanofiber Mats

Morphology and Mechanical Properties of 3Y-TZP Nanofiber Mats

Fabrication and characterization of ZrO₂ nanofibers by critical bubble electrospinning for high-temperature-resistant adsorption and separation

Microstructure and Phase Composition of Yttria-Stabilized Zirconia Nanofibers Prepared by High-Temperature Calcination of Electrospun Zirconium Acetylacetonate/Yttrium Nitrate/Polyacrylonitrile Fibers

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Electrospun zirconia nanofibers and corresponding formation mechanism study

Cited by 18 publications

References 27 publications

Morphology and Mechanical Properties of 3Y-TZP Nanofiber Mats

Morphology and Mechanical Properties of 3Y-TZP Nanofiber Mats

Fabrication and characterization of ZrO2 nanofibers by critical bubble electrospinning for high-temperature-resistant adsorption and separation

Microstructure and Phase Composition of Yttria-Stabilized Zirconia Nanofibers Prepared by High-Temperature Calcination of Electrospun Zirconium Acetylacetonate/Yttrium Nitrate/Polyacrylonitrile Fibers

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Fabrication and characterization of ZrO₂ nanofibers by critical bubble electrospinning for high-temperature-resistant adsorption and separation