The formation of onion-like carbon-encapsulated cobalt carbide core/shell nanoparticles by the laser ablation of metallic cobalt in acetone

• Published in: Carbon (New York) Vol. 55; pp. 108 - 115
• Main Authors: Zhang, Hemin, Liang, Changhao, Liu, Jun, Tian, Zhenfei, Shao, Guosheng
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.04.2013; Elsevier
• Subjects: Acetone; Carbides; Carbon; catalytic cracking; Cobalt; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Fluorescence; Laser ablation; Magnetic properties and materials; Magnetic properties of nanostructures; Materials science; Nanocrystalline materials; nanoparticles; Nanoscale materials and structures: fabrication and characterization; Physics; Raman spectroscopy; Shells; Transmission electron microscopy; X-ray diffraction; Encapsulation; Raman spectra; Ketones; Cobalt carbide; Core shell structure; Pulsed laser deposition; Laser ablation technique; Superparamagnetism; XRD; Carbon; Acetone

We developed a new approach to obtain onion-like carbon-encapsulated cobalt carbide (Co3C) core/shell nanoparticles (NPs) by the laser ablation of cobalt in acetone. The as-synthesized core/shell NPs were then characterized by transmission electron microscopy (TEM), X-ray diffraction, Raman spectros...