Abstract

The 61Ni, 13C NMR spectra of carbon encapsulated nickel nanoparticles have been obtained. It has been shown that the cores of the particles consist of metallic nickel with face-centered cubic structure, nickel carbide Ni3C and carbon-nickel solid solution. The carbon shell of nanoparticles is a highly defective structure and close to an amorphous glassy-like carbon.

Highlights

  • Magnetic nanoparticles are of considerable interest both from the fundamental point of view, and with the possibility of their practical application in medicine, spintronics, sensor devices, supercapacitors, catalytic processes, etc. [1,2,3,4,5,6]

  • The properties of these particles depend on many factors: size, phase composition, thickness of the carbon shell, method of synthesis, and so on

  • Let us assume that the core with average size 6 nm consists only of the pure nickel and the average thickness of the carbon shell is 1 nm

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Summary

Introduction

Magnetic nanoparticles are of considerable interest both from the fundamental point of view, and with the possibility of their practical application in medicine, spintronics, sensor devices, supercapacitors, catalytic processes, etc. [1,2,3,4,5,6]. The 61Ni, 13C NMR spectra of carbon encapsulated nickel nanoparticles have been obtained. It has been shown that the cores of the particles consist of metallic nickel with facecentered cubic structure, nickel carbide Ni3C and carbon-nickel solid solution.

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