Polymer-assisted fabrication of nanoparticles and nanocomposites

Розенберг, Б. А.; Tenne, Reshef

doi:10.1016/j.progpolymsci.2007.07.004

Cited by 498 publications

(271 citation statements)

References 276 publications

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“…According to Rayleigh instability, the deposition of Se atoms provided by those nanospheres is confined to the c-axis, leading to the formation of uniform, single-crystal nanorods [27]. In our size-controlled experiment, the spherical SeNPs are stabilized because of the steric stabilization of PVP [28]. Compared to other published studies, the SeNPs capped with PVP that we obtained are more stable (Fig.…”

Section: Resultsmentioning

confidence: 42%

Biosynthesis and structural characteristics of selenium nanoparticles by Pseudomonas alcaliphila

Zhang

Chen

Líu

et al. 2011

Colloids and Surfaces B: Biointerfaces

228

130

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Section: Resultsmentioning

confidence: 42%

Biosynthesis and structural characteristics of selenium nanoparticles by Pseudomonas alcaliphila

Zhang

Chen

Líu

et al. 2011

Colloids and Surfaces B: Biointerfaces

228

130

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“…Glass slides have a higher water wettability than Al foils [34,35] but a much lower thermal conductivity. The macromolecules of PVP are known to immobilize iron ions by weak interactions [36] or steric hindrance [37] acting as nanoreactors for the synthesis of nanoparticles by forming stable metal clusters [38]. Thus, when the PVP-metal ions solution hit the glass electrode, it spread more than in the Al foil forming flatter and thinner fibers (as shown in Figure 2b), which, after sintering formed an inter-connected structure (nanofibers linked by a veil).…”

Section: Morphology Of the Thermal Treated Samplesmentioning

confidence: 99%

Correlation between electrospinning parameters and magnetic properties of BiFeO3 nanofibers

Melo¹,

Santos²,

Gualdi³

et al. 2017

Electrospinning

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BiFeO 3 nanofibers of different morphologies and dimensions were produced by electrospinning varying the collector and thermal treatment. By thermogravimetric analyses (TGA) the thermal behavior of the as-spun nanofibers was studied. The morphology of the nanofibers was examined by transmission and scanning electron microscopy (TEM and SEM, respectively) while the chemical composition and crystal structure were analyzed by energy dispersive x-ray spectrometry (EDS) and wide angle x-ray diffraction (WAXD). A vibrating sample magnetometer (VSM) was used to evaluate the magnetic properties. Different types of mats with different nanofibers´dimen-sions were obtained; while some nanofibers were interconnected, others were completely separated and aligned. The thinnest nanofibers were obtained using an aluminum substrate with folds and after annealing at 550 ∘ C. All samples annealed at this temperature formed pure BiFeO 3 , while samples annealed at 550 and 750 ∘ C formed an additional Bi 2 Fe 4 O 9 phase. No iron impurities were detected; the crystallite size of all the nanofibers was between 30 and 36 nm. The saturation magnetization increased with the decrease of the nanofiber´s diameter and increase of nanofibers interconnectivity. Thus, this ferromagnetism behavior was attributed to the suppression of the spiral spin structure of BiFeO 3 (which has a 62 nm period) and to the morphology of interconnected nanofibers.

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“…TEM is a straightforward and valuable tool to visualize nanoparticle size, and dispersion within the polymer matrix as well as the impact on mechanical properties (Rozenberg and Tenne 2008;Bilbao-Sainz et al 2011). TEM also has been used to investigate the morphology of nano filler particles in the matrix governing the improved thermal, mechanical, and physical properties of the nanocomposites (Saba et al 2016c).…”

Section: Transmission Electron Microscopy (Tem)mentioning

confidence: 99%

Fabrication of Epoxy Nanocomposites from Oil Palm Nano Filler: Mechanical and Morphological Properties

et al. 2016

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The aim of this research was to fabricate epoxy nanocomposites by utilizing the developed nano filler from oil palm mills agricultural wastes oil palm empty fruit bunch (OPEFB) fibers for advanced applications. Epoxy-based polymer nanocomposites were prepared by dispersing 1, 3, and 5 wt. % nano OPEFB filler by using a high speed mechanical stirrer through hand lay-up technique. The mechanical (tensile and impact) properties and morphological properties of nano OPEFB/epoxy nanocomposites were examined and compared. Morphological properties were analyzed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM) to look at the dispersion of the nano OPEFB filler in the epoxy matrix. The tensile and impact properties of nanocomposites increased until 3% nano filler loading, but beyond 3% they decreased. Overall mechanical properties reached maximum values for 3% loading, due to better stress transfer owing to homogenous dispersion of nano OPEFB filler within epoxy matrix. The observed results were also confirmed by SEM and TEM micrographs.

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Polymer-assisted fabrication of nanoparticles and nanocomposites

Cited by 498 publications

References 276 publications

Biosynthesis and structural characteristics of selenium nanoparticles by Pseudomonas alcaliphila

Biosynthesis and structural characteristics of selenium nanoparticles by Pseudomonas alcaliphila

Correlation between electrospinning parameters and magnetic properties of BiFeO3 nanofibers

Fabrication of Epoxy Nanocomposites from Oil Palm Nano Filler: Mechanical and Morphological Properties

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