Hydrogen and air detonation (deflagration) synthesis of carbon-encapsulated iron nanoparticles

Yan, Honghao; Zhao, Tong; Li, X.; Hun, Ch.

doi:10.1134/s0010508215040152

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…The diffraction peaks at 43.69, 50.98, and 74.68° are assigned to Co 0.52 Cu 0.48 (PDF#50-1452) (111), (200), and (220), respectively [12], which indicates the Co-Cu alloy was prepared by the gaseous detonation method. The crystallite size of the Co-Cu alloy was calculated by the Scherrer equation [13] 1. The average crystallite size of Co 0.52 Cu 0.48 in S1 is 11.5 nm and that in S2 is 15.7 nm, which demonstrates that the crystallite size of the Co-Cu alloy would be affected by the explosion source, and the combustible gas with higher combustion heat would contribute to the larger crystallite size.…”

Section: Resultsmentioning

confidence: 99%

One-pot rapid preparation of carbon-coated Co–Cu alloy composites via the gaseous detonation method

Zhao

Wang

et al. 2022

J Nanopart Res

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Nano Co–Cu alloy is an important catalyst, which has an important practical value in the field of the petrochemical industry. In order to prepare carbon-coated Co–Cu alloy composites efficiently and conveniently, a gaseous detonation method was explored in the present paper. The mixture of cobalt acetylacetonate and copper acetylacetonate was used as a carbon source and metal source, and the mixture gas of hydrogen–oxygen and benzene–oxygen was used as an explosion source, respectively, to study the influence of explosion source on the phase and morphology of the nanopowders. The TEM and XRD analysis results indicated that the carbon-coated Co–Cu alloy composites were composed of CNTs and carbon-coated Co–Cu/Cu nanoparticles with core–shell structure. The explosion source would affect the morphology of the carbon-coated Co–Cu alloy composites but have little impact on the phase. The higher combustion heat of combustible gas would contribute to the preparation of carbon-coated Co–Cu/Cu nanoparticles with a core–shell structure and a larger particle size. The present study provides a novel means for the preparation of carbon-coated Co–Cu alloy nanomaterials.

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Section: Resultsmentioning

confidence: 99%

One-pot rapid preparation of carbon-coated Co–Cu alloy composites via the gaseous detonation method

Zhao

Wang

et al. 2022

J Nanopart Res

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“…So high purity, high crystalline phase would be fabricated by detonation method, such as carbon-encapsulated metal nanoparticles [16,[19][20] , metal oxides [21][22][23] , diamond [24][25] . Easy to operate, high energy output and short reaction time are unique characters of detonation method [26] . Nevertheless, the consistency of precursor and explosive should be taken into consideration before experiment.…”

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confidence: 99%

Preparation and Immobilization of Ti-based Oxides by Detonation Method

Yan¹,

Zhao²,

Li³

et al. 2017

Journal of Inorganic Materials

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Ti-doped gel, prepared by hydrolysis of tetrabutyl titanate and ammonium nitrate solution, was mixed with hexogen to make mix explosive. The mix explosive was detonated in a closed kettle in cylindrical charge with presence of aluminum plate, and then Ti-based oxides were fabricated. The samples were characterized by XRD, TEM, EDX, and SEM. The results showed that samples contained FeTiO 3 , a few of rutile, anatase, and Al 2 O 3. The Ti-based oxides particles were spherical in micrometer level scale. Ti-based oxides were successfully immobilized on an aluminum plate driven by Ti-contained detonation wave, and the size of particles on the plate was 10 μm. The present results suggest that the detonation method provides an easy way to prepare Ti-based oxides and fabricate particle-plate structure for recycling materials synchronously.

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Metal catalyzed preparation of carbon nanomaterials by hydrogen–oxygen detonation method

Zhao

Yan

2018

Combustion and Flame

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Hydrogen and air detonation (deflagration) synthesis of carbon-encapsulated iron nanoparticles

Cited by 9 publications

References 14 publications

One-pot rapid preparation of carbon-coated Co–Cu alloy composites via the gaseous detonation method

One-pot rapid preparation of carbon-coated Co–Cu alloy composites via the gaseous detonation method

Preparation and Immobilization of Ti-based Oxides by Detonation Method

Metal catalyzed preparation of carbon nanomaterials by hydrogen–oxygen detonation method

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