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Nasibulin, Albert G.; Ahonen, Petri; Richard, Olivier; Kauppinen, Esko I.; Altman, Igor

doi:10.1023/a:1012508407420

Cited by 88 publications

(41 citation statements)

References 52 publications

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“…Similarly, mixtures of soot, carbon nanotubes and metallic nanoparticles were obtained from acetylene flames and an iron-carbonyl precursor (Height et al, 2004). These observations and recent reports on the gas phase reduction of copper (Nasibulin et al, 2001;Nasibulin et al, 2005), iron (Knipping et al, 2004) and nickel (Suh et al, 2005) indicate the possibility of manufacturing metallic nanoparticles in highly reducing flames.…”

Section: Introductionsupporting

confidence: 55%

Flame spray synthesis under a non-oxidizing atmosphere: Preparation of metallic bismuth nanoparticles and nanocrystalline bulk bismuth metal

Grass

Stark

2006

J Nanopart Res

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Metallic bismuth nanoparticles of over 98% purity were prepared by a modified flame spray synthesis method in an inert atmosphere by oxygen-deficient combustion of a bismuth-carboxylate based precursor. The samples were characterized by X-ray diffraction, thermal analysis and scanning electron microscopy confirming the formation of pure, crystalline metallic bismuth nanoparticles. Compression of the asprepared powder resulted in highly dense, nanocrystalline pills with strong electrical conductivity and bright metallic gloss.

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Section: Introductionsupporting

confidence: 55%

Flame spray synthesis under a non-oxidizing atmosphere: Preparation of metallic bismuth nanoparticles and nanocrystalline bulk bismuth metal

Grass

Stark

2006

J Nanopart Res

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“…[6][7][8][9][10][11][12][13][14] Several prepared methods of the CuNPs have been reported such as chemical method, thermal decomposition, microwave heating, microemulsion techniques, etc. [15][16][17][18][19] It is well-known that at small sizes, CuNPs and other metallic nanoparticles offer special chemical, physical and biological properties due to an increase in surface area of the nanoparticles. Therefore preparation of small-sized CuNPs has been much attractive.…”

Section: Introductionmentioning

confidence: 99%

Ultrafine Copper Nanoparticles Exhibiting a Powerful Antifungal/Killing Activity Against Corticium Salmonicolor

Cao¹,

Nguyen²,

Vo³

et al. 2014

Bulletin of the Korean Chemical Society

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In this paper ultrafine copper nanoparticles (CuNPs) were prepared from copper salt via chemical reduction method with sodium citrate dispersant and polyvinylalcol (PVA) capping polymer. The colloidal CuNPs were characterized by using UV-Visible spectroscopy, Transmission Electron Microscopy (TEM), and X-ray Diffraction (XRD) techniques. Our obtained results indicated that the CuNPs were produced ranging from 2 to 4 nm in diameter. The colloidal solution at 7 ppm of CuNPs exhibited a powerful antifungal activity against Corticium salmonicolor (C. Salmonicolor). Fungal killing assays showed colloid solutions containing 10 ppm of CuNPs killed entirely the cultured fungus. A highly killing activity against the fungus was also performed when the CuNPs were sprayed on pink disease-infected rubber trees. These positive results may offer a great potential to produce CuNPs-based eco-fungicide for pink disease.

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“…As was mentioned in [22], the most probable source of oxygen resulted in the formation of copper(I) oxide is the reaction between copper and oxygen-containing molecules, namely, precursor decomposition products such as carbon dioxide and water. Note that these reactions cannot proceed with the formation of gaseous copper(I) oxide due to its instability in the gaseous phase [32].…”

Section: Resultsmentioning

confidence: 99%

“…Cu(acac) 2 -N 2 System Two sources of nitrogen (AGA, with nitrogen content of 99.9 and 99.999 vol %) were used to study the influence of impurities in decomposition products [22]. Note that the composition of Cu(acac) 2 decomposition products was independent of the purity of nitrogen used in experiment.…”

Section: Resultsmentioning

confidence: 99%

“…Daroczi et al [21] utilized the preparation of copper and iron nanoparticles by the thermal decomposition of copper ferrocyanide in an open vertical tube. There are no published data on the synthesis of copper and copper oxide particles in the gaseous phase involving Cu(acac) 2 , except for our latest studies [22][23][24][25][26]. In these works, we studied the formation of copper and copper oxide nanoparticles by the vapor-phase decomposition of Cu(acac) 2 in inert nitrogen atmosphere and in the presence of gaseous reagents such as water, hydrogen, oxygen, and carbon monoxide in a laminar flow reactor.…”

Section: Synthesis Of Nanoparticles Using Vapor-phase Decomposition Omentioning

confidence: 99%

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Synthesis of nanoparticles using vapor-phase decomposition of copper(II) acetylacetonate

Nasibulin¹,

Shurygina

Kauppinen³

2005

Colloid J

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Experimental data on the synthesis of crystalline Cu, Cu 2 O, and CuO nanoparticles obtained earlier by the vapor-phase decomposition of copper(II) acetylacetonate (Cu(acac) 2 ) were systematized and generalized. Studies were performed using a laminar flow reactor at atmospheric pressure within the ranges of precursor partial vapor pressure P prec = 0.06-44 Pa and reactor temperature from 432 to 1216 ° C. The decomposition of Cu(acac) 2 was studied in an inert nitrogen atmosphere and in the presence of various reagents (water vapors, H 2 , O 2 , and CO). The composition of synthesized particles varied from pure copper to its oxides (Cu 2 O and CuO) depending on experimental conditions and used reagents. A semi-empirical kinetic model was proposed for describing the product dynamics. The hypothesis on the predominant role of copper dimers in a particle's growth was stated. It was established that the composition of products is determined by the surface reactions on growing particles and is dependent on the ratio between the concentrations of the gaseous reagents. Calculated phase diagrams of the products of Cu(acac) 2 decomposition in the presence of various reagents were in good agreement with experimental data. The proposed method of construction of the phase diagram of decomposition products can be employed for other systems. It was established that, upon the Cu(acac) 2 decomposition in the presence of CO, carbon nano-onions were formed in addition to copper nanoparticles.

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Cited by 88 publications

References 52 publications

Flame spray synthesis under a non-oxidizing atmosphere: Preparation of metallic bismuth nanoparticles and nanocrystalline bulk bismuth metal

Flame spray synthesis under a non-oxidizing atmosphere: Preparation of metallic bismuth nanoparticles and nanocrystalline bulk bismuth metal

Ultrafine Copper Nanoparticles Exhibiting a Powerful Antifungal/Killing Activity Against Corticium Salmonicolor

Synthesis of nanoparticles using vapor-phase decomposition of copper(II) acetylacetonate

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