Flame spray synthesis of ZrO2 nano-particles using liquid precursors

Tok, Alfred Iing Yoong; Boey, Freddy; Du, S.W.; Wong, Becky

doi:10.1016/j.mseb.2006.02.069

Cited by 54 publications

(27 citation statements)

References 17 publications

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“…Nanoscale is considered where the dimensions of the particle, platelet or fibre modification are in the range of 1-100 nm [5]. Lately, nanocrystalline substances, in particular zirconia nano-particles (ZrO 2 -NP)s, have gained much attention due to their exceptional physical and chemical properties, which are considerably different from their microcrystalline counterparts [6,7]. (ZrO 2 -NP)s as an ordinary refractory material, has extensive uses in lots of technological areas, such as damage-resistant optical coatings, high-performance transformation-toughened structural engineering ceramics, fuel-cell electrolytes, gate dielectrics, catalysts, buffer layers for superconductor growth, and oxygen sensors [8,9].…”

Section: Introductionmentioning

confidence: 99%

Novel flame retardant zirconia-reinforced nanocomposites containing chlorinated poly(amide-imide): synthesis and morphology probe

Mallakpour

Zeraatpisheh

2013

Journal of Experimental Nanoscience

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In the present investigation, a thermally stable poly(amide-imide) (PAI) was synthesised from the polymerisation reaction of 4,4 0 -methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a chlorinated diacid with 4,4 0 -methylenebis (3-chloro-2,6-diethylaniline) using molten tetra-n-butylammonium bromide and triphenyl phosphite as a condensing agent and green media. This methodology offers enhancements for the synthesis of polymers with regard to yield of products, simplicity in operation, and green aspects by avoiding volatile solvents. From the chemical point of view, the chloride and ethylene groups impart to the polymer's chain increased solubility of obtained polymer in organic solvent. Then, the surface of zirconia nanoparticles (ZrO 2 -NPs) was modified with 3-aminopropyltriethoxylsilane as a coupling agent. The obtained polymer and inorganic metal oxide NPs were used to prepare PAI/ZrO 2 nanocomposites through ultrasonic irradiation. The formation of PAI was confirmed by 1 H-NMR, FT-IR spectroscopy, and elemental analysis. The obtained polymer was synthesised with good yield (90%) and moderate inherent viscosity (0.48 dL/g). The resulting NP filled composites were also characterised by FT-IR, XRD, FE-SEM, TEM and TGA. The TEM and FE-SEM results indicated a high dispersion level of the nanoscale inorganic particles in the polymer matrix. In this article, ZrO 2 -NPs are employed to improve flame retardancy of nanocomposites. TGA thermographs confirmed that the heat stability of the prepared NP-reinforced composites was improved in the presence of ZrO 2 nanocrystals.

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Section: Introductionmentioning

confidence: 99%

Novel flame retardant zirconia-reinforced nanocomposites containing chlorinated poly(amide-imide): synthesis and morphology probe

Mallakpour

Zeraatpisheh

2013

Journal of Experimental Nanoscience

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“…8) the luminescence region lies at 530 up to 575-580 nm at M = 0.01, while at M = 0 there is no luminescence. When analyzing causes of luminescence in colloids, it seems appropriate to consider a chain of processes mentioned in [59]: (6) where Z and Z * are basic and excited states of luminescence centers, process (6) is recovery of Z state by means of electron capture.…”

Section: Photoluminescencementioning

confidence: 99%

“…Numerous publications devoted to both synthesis and investigation of properties of nano dispersed zirconia have appeared by now [1][2][3][4][5][6][7][8]. Such interest is determined by unique mechanical, chemical, optical, and other properties that open way to a broad practical application of the material in science and technology [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Structural, Morphological and Optical Properties of Nanoproducts of Zirconium Target Laser Ablation in Water and Aqueous SDS Solutions

Karpukhin¹,

Malikov²,

Бородина³

et al. 2017

ChChT

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Abstract.1 Structural, morphological and optical properties of nanoproducts of laser ablation of zirconium target in water and aqueous SDS solutions were investigated. Depending on experiment conditions the indicated products can appear as different crystalline phases of zirconia and organic-inorganic composites, which include SDS alkyl chains intercalated between layers of zirconium oxides or hydroxides. The formation of zirconium dioxide-based hollow nano and microstructures is demonstrated. It is suggested that ablation formed gas-vapor bubbles can serve as templets for generation of hollow structures.

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“…Flame spray synthesis has also been used to prepare zirconia nanoparticles. The surface area of the nanoparticles ranged from 21 to 69 m 2 / g, depending on the solvent (water:ethanol) composition [131].…”

Section: Other Modes Of Synthesismentioning

confidence: 99%

Structural and Morphological Control in the Preparation of High Surface Area Zirconia

et al. 2008

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The methods for the formation of zirconia including precipitation from aqueous salts, sol-gel synthesis from zirconium alkoxides, and the templated synthesis using surfactants are described in this review. The surface areas obtained vary widely but invariably decrease upon prolonged calcination. Digestion of hydrous zirconia and incorporation of dopants such as lanthanum, yttrium, or sulfate ions can increase the surface area and thermal stability. However, these methods also affect the crystal phase of zirconia. The transformation from the metastable tetragonal to the monoclinic phase occurs during the cooling phase of calcination. Mechanisms for the stabilization of the tetragonal phase are discussed. Zirconia with well-ordered mesopores or in the form of hollow spheres can be prepared but lack thermal stability, unless doped with phosphates, silicates or sulfates.

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Flame spray synthesis of ZrO2 nano-particles using liquid precursors

Cited by 54 publications

References 17 publications

Novel flame retardant zirconia-reinforced nanocomposites containing chlorinated poly(amide-imide): synthesis and morphology probe

Novel flame retardant zirconia-reinforced nanocomposites containing chlorinated poly(amide-imide): synthesis and morphology probe

Structural, Morphological and Optical Properties of Nanoproducts of Zirconium Target Laser Ablation in Water and Aqueous SDS Solutions

Structural and Morphological Control in the Preparation of High Surface Area Zirconia

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