Nickel nanoparticles in carbon structures prepared by solid-phase pyrolysis of nickel-phthalocyanine

Manukyan, Aram; Mirzakhanyan, A. A.; Badalyan, G. R.; Shirinyan, G. H.; Федоренко, А. Г.; Лянгузов, Николай Владимирович; Yuzyuk, Yu. I.; Бугаев, Л. А.; Sharoyan, É. G.

doi:10.1007/s11051-012-0982-6

Cited by 25 publications

(22 citation statements)

References 9 publications

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“…It is evident that the concentrations of zinc and zinc cyanide nanoparticles can be controlled by changing the pyrolysis conditions (in particular, there is a strong influence of the pyrolysis temperature). It is also known that mean sizes of nanoparticles strongly depend on the pyrolysis time [8].…”

Section: Resultsmentioning

confidence: 99%

“…In this work the process of solid-phase pyrolysis of zinc-phthalocyanine was analogous to that described in [6][7][8][9][10] and corresponded to the following reaction: ISSN 1068-3372, Journal of Contemporary Physics (Armenian Academy of Sciences), 2016, Vol. 51, No.…”

Section: Methodsmentioning

confidence: 94%

“…One of convenient methods for producing the metal nanoparticles in carbon matrices is solid-phase pyrolysis of metal-phthalocyanines (MPc = MC 32 N 8 H 16 ), because they contain simultaneously the metal and carbon atoms (in the ratio 1:32) and can form the different metal-carbon structures with given characteristics (see, e.g., [6][7][8][9][10]). …”

Section: Introductionmentioning

confidence: 99%

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Characterization of zinc and zinc cyanide nanoparticles in carbon matrices prepared by solid-phase pyrolysis of zinc-phthalocyanine

et al. 2016

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Abstract⎯Using solid-phase pyrolysis of Zn-phthalocyanine (ZnC 32 H 16 N 8 ), we have prepared zinc and zinc cyanide nanoparticles in carbon matrices with a zinc concentration of 3 at %. The structure and composition of samples were investigated by the methods of scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. It is shown that at low pyrolysis temperature (700°C) only the Zn nanoparticles are formed, whereas at higher temperature (900°C) a certain amount of Zn(CN) 2 nanoparticles are also synthesized. The mean diameter of nanoparticles is about 150 nm, and their size distribution has a logarithmically normal shape.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Characterization of zinc and zinc cyanide nanoparticles in carbon matrices prepared by solid-phase pyrolysis of zinc-phthalocyanine

et al. 2016

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“…Microspheres samples were synthesized by solid-phase pyrolysis method of organic compounds, as described in our works [9][10][11]. Earlier, the same method was applied to prepare Ni/C, Cu/C nanocomposites and Ni 1-x Cu x nanoalloys in different carbon matrices [10][11][12][13].…”

Section: Experimental Techniquementioning

confidence: 99%

Structure and magnetic properties of carbon microspheres prepared by solid-phase pyrolysis of organic compounds

Manukyan¹,

Mirzakhanyan²,

Khachaturyan³

et al. 2015

J. Contemp. Phys.

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Abstract⎯Carbon microspheres with a mean diameter of 3-3.5 µm were prepared by solid-phase pyrolysis of polyethylene and metal-free phthalocyanine. Morphology, structure and magnetic properties of the samples were investigated by electron microscopy, Raman spectroscopy, magnetometry and electron paramagnetic resonance. Carbon microspheres are composed of graphitic nanocrystallites with longitudinal sizes of 10-15 nm. The samples reveal strong paramagnetism, which in the case of metal-free phthalocyanine pyrolysis is 3 times higher (~5×10 19 spin/g) due to the unpaired spins of impurity nitrogen atoms.

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“…[3], а также для создания термически, химически и радиационно-стойких металлоуглеродных матриц для хранения радио-активных отходов [4].…”

Section: Introductionunclassified

Исследование пиролизата фталоцианина Fe методами мессбауэровской спектроскопии и просвечивающей электронной микроскопии

Козлов¹,

Семенов²,

Каратеева³

et al. 2018

Физика Твердого Тела

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A pyrolyzate of iron phthalocyanine is studied by Mössbauer spectroscopy and transmission electron microscopy. The phase composition and magnetic state were found for pyrolysis products (α-Fe, γ-Fe, Fe_3C, and magnetite). Morphological features of carbon and iron-containing phases (metal particles of various shapes and sizes, as well as carbon nanotubes, carbon hollow nanopolihedra, and nongraphitized carbon) are determined. The morphology and structure of iron phthalocyanine pyrolyzates and diphthalocyanines of rare-earth elements are analyzed.

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Nickel nanoparticles in carbon structures prepared by solid-phase pyrolysis of nickel-phthalocyanine

Cited by 25 publications

References 9 publications

Characterization of zinc and zinc cyanide nanoparticles in carbon matrices prepared by solid-phase pyrolysis of zinc-phthalocyanine

Characterization of zinc and zinc cyanide nanoparticles in carbon matrices prepared by solid-phase pyrolysis of zinc-phthalocyanine

Structure and magnetic properties of carbon microspheres prepared by solid-phase pyrolysis of organic compounds

Исследование пиролизата фталоцианина Fe методами мессбауэровской спектроскопии и просвечивающей электронной микроскопии

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