Silver Nanofibres by a Novel Electrospinning Process: Nanofibres with Plasmon Resonance in the IR Region and Thermal Hysteresis Electrical Conductivity Features

Barakat, Nasser A.M.; Farrag, Taha E.; Kanjwal, Muzafar A.; Park, Soo‐Jin; Sheikh, Faheem A.; Kim, Hee Young

doi:10.1002/ejic.200900453

Cited by 13 publications

(8 citation statements)

References 46 publications

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“…The XRD pattern (Figure S1a) corresponds well with the reported pattern for a triclinic crystal structure (S.G. = P 1, a = 5.5810, b = 9.960, c = 21.587, α = 89.10, β = 97.40, γ = 97.26, JCPDS 14-0733) . The FT-IR spectrum (Figure S1b) exhibits absorption peaks corresponding to the vibrational modes of the acetic ion, as has been observed for acetate salts of transition metals. − The absorption peaks at 1409 and 1568 cm –1 are attributable to the symmetric and antisymmetric stretching of −CO 2 – . The absorptions because of the rocking and in-plane bending (or deformation) of −CH 3 appear at 1018 and 1342 cm –1 .…”

Section: Resultssupporting

confidence: 77%

Thermal Decomposition of Silver Acetate: Physico-Geometrical Kinetic Features and Formation of Silver Nanoparticles

2016

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The thermal decomposition of silver acetate (CH 3 COOAg) was investigated to reveal the factors controlling the formation of Ag nanoparticles (NPs). The overall kinetic behavior was interpreted as partially overlapping two reaction steps using systematic kinetic and morphological analyses. Although the apparent activation energies were comparable (approximately 75 kJ mol −1 ), the initial reaction step was regulated by the first order law because of the consumption of reactive sites on the end surfaces of columnar crystals, whereas the subsequent reaction step advanced by shrinkage of the side surfaces of the crystals with an accelerating linear shrinkage rate, resulting in slimming of the crystals. A large surface area of the reactant crystals was exposed to the reaction atmosphere during the course of the reaction by the self-induced migration of the Ag product to the surfaces of the Ag-NP aggregates formed at certain parts of the reactant surfaces. As a result, the atmospheric water vapor affected the kinetic behavior by significantly lowering the reaction temperature. As a possible explanation for these phenomena, a physical mechanism involving evaporation of the reactant and simultaneous condensation of the product is proposed herein.

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Section: Resultssupporting

confidence: 77%

Thermal Decomposition of Silver Acetate: Physico-Geometrical Kinetic Features and Formation of Silver Nanoparticles

2016

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“…Moreover, functional inorganic nanofibers can be produced by using sol–gel composed of metal(s) precursor(s) and proper polymer(s). In the field of metallic nanofibers, electrospinning process has a good contribution as it has been invoked to produce several pristine metallic nanofibers [18-21]. Beside the metal alkoxides, metal acetates have been widely utilized as metal precursors, as these promising salts have a good tendency for polycondensation to form electrospinable sol-gels with the proper polymers [22].…”

Section: Resultsmentioning

confidence: 99%

Influence of the nanofibrous morphology on the catalytic activity of NiO nanostructures: an effective impact toward methanol electrooxidation

et al. 2013

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In this study, the influence of the morphology on the electrocatalytic activity of nickel oxide nanostructures toward methanol oxidation is investigated. Two nanostructures were utilized: nanoparticles and nanofibers. NiO nanofibers have been synthesized by using the electrospinning technique. Briefly, electrospun nanofiber mats composed of polyvinylpyrolidine and nickel acetate were calcined at 700°C for 1 h. Interestingly, compared to nanoparticles, the nanofibrous morphology strongly enhanced the electrocatalytic performance. The corresponding current densities for the NiO nanofibers and nanoparticles were 25 and 6 mA/cm2, respectively. Moreover, the optimum methanol concentration increased to 1 M in case of the nanofibrous morphology while it was 0.1 M for the NiO nanoparticles. Actually, the one-dimensional feature of the nanofibrous morphology facilitates electrons' motion which enhances the electrocatalytic activity. Overall, this study emphasizes the distinct positive impact of the nanofibrous morphology on the electrocatalytic activity which will open a new avenue for modification of the electrocatalysts.

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“…The electrospinning process is simple and has a variation of the electrospinnable materials with a distinct characteristic of the obtained electrospun nanofibers; all of these arouse a great interest in the technique and its products [43,[45][46][47][48][49]. Consequently, many polymeric nanofibers were produced by electrospinning.…”

Section: Characterization Of the Photocatalystsmentioning

confidence: 99%

Influence of TixZr(1−x)O2 nanofibers composition on the photocatalytic activity toward organic pollutants degradation and water splitting

Yasin

Obaid

El‐Newehy

et al. 2015

Ceramics International

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Silver Nanofibres by a Novel Electrospinning Process: Nanofibres with Plasmon Resonance in the IR Region and Thermal Hysteresis Electrical Conductivity Features

Cited by 13 publications

References 46 publications

Thermal Decomposition of Silver Acetate: Physico-Geometrical Kinetic Features and Formation of Silver Nanoparticles

Thermal Decomposition of Silver Acetate: Physico-Geometrical Kinetic Features and Formation of Silver Nanoparticles

Influence of the nanofibrous morphology on the catalytic activity of NiO nanostructures: an effective impact toward methanol electrooxidation

Influence of TixZr(1−x)O2 nanofibers composition on the photocatalytic activity toward organic pollutants degradation and water splitting

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