Synthesis of supported fibrous nanoceramics via electrospinning

Starbova, K.; Petrov, Dimitar N.; Starbov, N.; Lovchinov, V.

doi:10.1016/j.ceramint.2012.02.046

Cited by 13 publications

(11 citation statements)

References 25 publications

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“…6a). Other oxides produced by electrospinning have similar structures when observed by TEM, as described for Nb 2 O 5 [37] and TiO 2 (anatase and brookite) [38] fibers, or NiFe 2 O 4 nanofibers [39]. EDS analysis and electron diffraction measurements are in accordance with the Yb 2 O 3 nature of these nanocrystals.…”

Section: Resultssupporting

confidence: 60%

“…The electron patterns obtained from selected area electron diffraction (SAED) show spotty rings, indicating the polycrystalline nature of the material. This feature of polycrystallinity is also found among the oxides mentioned above and studied by TEM (Nb 2 O 5 , TiO 2 or NiFe 2 O 4 ) [38][39][40]. Furthermore, its indexation corresponds well to the Yb 2 O 3 pattern (Fig.…”

Section: Resultsmentioning

confidence: 73%

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Preparation of Yb2O3 submicron- and nano-materials via electrospinning

Henriques

Ferreira

et al. 2015

Ceramics International

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Section: Resultssupporting

confidence: 60%

Section: Resultsmentioning

confidence: 73%

Preparation of Yb2O3 submicron- and nano-materials via electrospinning

Henriques

Ferreira

et al. 2015

Ceramics International

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“…Average diameter is also decreased by using other polymer reagents such as polyethylene oxide (PEO). Starbova et al [101] examined PEO in the fabrication of electrospun ZnO NFs and found more efficient viscous–elastic behavior of the high molar mass PEO under electro-hydrodynamic conditions compared to that of PVA. Finally, it is worth mentioning that there are many attempts to eliminate polymer reagents by using the sol-gel method.…”

Section: Fabrication Of Electrospun Ceramic Matsmentioning

confidence: 99%

Electrospun Ceramic Nanofiber Mats Today: Synthesis, Properties, and Applications

2017

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Ceramic nanofibers (NFs) have recently been developed for advanced applications due to their unique properties. In this article, we review developments in electrospun ceramic NFs with regard to their fabrication process, properties, and applications. We find that surface activity of electrospun ceramic NFs is improved by post pyrolysis, hydrothermal, and carbothermal processes. Also, when combined with another surface modification methods, electrospun ceramic NFs result in the advancement of properties and widening of the application domains. With the decrease in diameter and length of a fiber, many properties of fibrous materials are modified; characteristics of such ceramic NFs are different from their wide and long (bulk) counterparts. In this article, electrospun ceramic NFs are reviewed with an emphasis on their applications as catalysts, membranes, sensors, biomaterials, fuel cells, batteries, supercapacitors, energy harvesting systems, electric and magnetic parts, conductive wires, and wearable electronic textiles. Furthermore, properties of ceramic nanofibers, which enable the above applications, and techniques to characterize them are briefly outlined.

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“…are one of the most studied materials in the submicron region. They are usually prepared by thermal calcination of composite metal-organic fibers [1][2][3]. The basis of these composite fibers is the carrier polymer material -base polymer and precursor serving as a source of inorganic material.…”

Section: Extended Abstractmentioning

confidence: 99%

Low-Cost, Energy-Saving Plasma Method for Preparation of Inorganic Submicron Fibers

Medvecká¹,

Kováčik²,

Zahoranová³

et al. 2017

Proceedings of the 2nd World Congress on Recent Advances in Nanotechnology

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Extended AbstractInorganic ceramic fibers (Al2O3, SiO2, TiO2, ZnO, etc.) are one of the most studied materials in the submicron region. They are usually prepared by thermal calcination of composite metal-organic fibers [1][2][3]. The basis of these composite fibers is the carrier polymer material -base polymer and precursor serving as a source of inorganic material. Composite organometallic fibers are prepared from this "cocktail" using standard spinning techniques (electrospinning, forcespinning, chemical spinning) [4,5]. Then, the composite fibers are transformed to ceramics by heat treatment in the process of thermal calcination. Thermal calcination is used for removing the organic base polymer by the preparation of inorganic submicron fibers. It proceeds at high temperature (500-1000°C) for several hours (5-10 hrs). Due to the high temperature approach and long treatment times, conventional thermal calcination needed by the processing of inorganic submicron fibers is significantly time-and energy-consuming process.Recent research is focused on the searching for the procedures to prepare inorganic fibers by simpler, low temperature and economic way. The use of plasma is one of the potential alternatives [6]. Plasma technologies are successfully replacing a number of processes in many fields of industry. With a large number of parameters by which the properties of plasma can be customized for a required purpose, it is an ideal tool for the removal of the organic polymer at room temperature in a relatively short time [7][8][9][10].In this work we study the plasma assisted calcination of various types of submicron composite fibers by using Diffuse Coplanar Surface Barrier Discharge (DCSBD) [11,12]. The effect of plasma on the composite fibers comprising two types of polymers and several types of precursors prepared by two different spinning techniques (electrospinning and forcespinning) was examined in terms of the organic polymer removal using several of surface diagnostic techniques (Fourier Transform Infrared Spectroscopy -FTIR, Energy-dispersive X-ray spectrometry -EDX, X-ray Photoelectron Spectroscopy -XPS). The influence of plasma on the morphology of the fibers was investigated by Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD). The samples were also studied using the CHNS analysis to determine the total carbon content and thermogravimetric analysis to investigate the changes in the thermal degradation of organic material. Effect of plasma treatment has been studied as a pre-treatment in total calcination. The output fibers have been studied in terms of elemental composition and crystalline structure.The observed fast removal of organics within short exposure times (less than 1 hour) and low temperature approach (approx. 50-60°C) makes the plasma assisted calcination using DCSBD an advantageous alternative to conventional thermal calcination for preparation of inorganic fibers and allows the use of wider range of materials and substrates sensitive to high temperature. As a pre-treatment met...

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Synthesis of supported fibrous nanoceramics via electrospinning

Cited by 13 publications

References 25 publications

Preparation of Yb2O3 submicron- and nano-materials via electrospinning

Preparation of Yb2O3 submicron- and nano-materials via electrospinning

Electrospun Ceramic Nanofiber Mats Today: Synthesis, Properties, and Applications

Low-Cost, Energy-Saving Plasma Method for Preparation of Inorganic Submicron Fibers

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