Magnetic resonance study of carbon encapsulated Ni nanoparticles

• Autorzy: Marta Bobrowska , Janusz Typek , Grzegorz Zolnierkiewicz , Kamil Wardal , Niko Guskos , Iwona Pelech , Marcin Podsiadly , Urszula Narkiewicz
• Języki publikacji: EN

Abstrakty

EN

Magnetic resonance study of six samples consisting of carbon encapsulated nickel nanoparticles or carbon nanotubes ended with such nickel nanoparticles was carried out at room temperature. Samples of Ni/C were prepared by carburization of nanocrystalline nickel by ethylene (C2H4) and methane (CH4). Hydrocarbons decomposition on nickel nanoparticles was done at temperatures 500, 600 and 700°C. Magnetic resonance spectra of samples designated as CH4/500, CH4/600, CH4/700, C2H4/500, C2H4/600 and C2H4/700 were obtained by Bruker E 500 spectrometer. The integrated intensities of the resonance spectra were correlated with the carburization conditions (temperature, type of hydrocarbon) during samples preparation. A core-shell model of the investigated samples allowed rough estimation of appropriate shell sizes. [...]

Słowa kluczowe

EN

Magnetic resonance; Magnetic nanoparticle; Nickel nanoparticle

• Czasopismo: Open Chemistry
• Rocznik: 2012
• Tom: 10
• Numer: 6
• Strony: 1963-1968

Daty

wydano

2012-12-01

online

2012-09-21

Twórcy

autor

Marta Bobrowska

• Department of Chemistry and Environmental Engineering, Faculty of Maritime Engineering, Maritime University of Szczecin, 70-500, Szczecin, Poland

autor

Janusz Typek

• Institut of Physics, West Pomeranian University of Technology, 70-311, Szczecin, Poland,

autor

Grzegorz Zolnierkiewicz

• Institut of Physics, West Pomeranian University of Technology, 70-311, Szczecin, Poland

autor

Kamil Wardal

• Institut of Physics, West Pomeranian University of Technology, 70-311, Szczecin, Poland

autor

Niko Guskos

autor

Iwona Pelech

• Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, 70-322, Szczecin, Poland

autor

Marcin Podsiadly

• Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, 70-322, Szczecin, Poland

autor

Urszula Narkiewicz

• Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, 70-322, Szczecin, Poland

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Identyfikatory

DOI

10.2478/s11532-012-0123-1