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

Albert Nasibulin, L. Shurigina, Esko I. Kauppinen

Research output: Contribution to journalArticleScientificpeer-review

32 Citations (Scopus)

Abstract

Experimental data on the synthesis of crystalline Cu, Cu2O, 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, H2, O2, and CO). The composition of synthesized particles varied from pure copper to its oxides (Cu2O 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.
Original languageEnglish
Pages (from-to)1-20
JournalColloid Journal
Volume67
Issue number1
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

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Vapors
reagents
vapor phases
Nanoparticles
Decomposition
Copper
decomposition
copper
nanoparticles
synthesis
Carbon Monoxide
products
Phase diagrams
reactors
phase diagrams
Steam
Surface reactions
Chemical analysis
Vapor pressure
laminar flow

Keywords

  • nanoparticles
  • copper
  • crystalline
  • kinetic model

Cite this

Nasibulin, Albert ; Shurigina, L. ; Kauppinen, Esko I. / Synthesis of nanoparticles using vapor-phase decomposition of copper(II) acetylacetonate. In: Colloid Journal. 2005 ; Vol. 67, No. 1. pp. 1-20.
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abstract = "Experimental data on the synthesis of crystalline Cu, Cu2O, 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, H2, O2, and CO). The composition of synthesized particles varied from pure copper to its oxides (Cu2O 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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Synthesis of nanoparticles using vapor-phase decomposition of copper(II) acetylacetonate. / Nasibulin, Albert; Shurigina, L.; Kauppinen, Esko I.

In: Colloid Journal, Vol. 67, No. 1, 2005, p. 1-20.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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AU - Nasibulin, Albert

AU - Shurigina, L.

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N2 - Experimental data on the synthesis of crystalline Cu, Cu2O, 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, H2, O2, and CO). The composition of synthesized particles varied from pure copper to its oxides (Cu2O 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.

AB - Experimental data on the synthesis of crystalline Cu, Cu2O, 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, H2, O2, and CO). The composition of synthesized particles varied from pure copper to its oxides (Cu2O 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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