Near-Curie magnetic anomaly at the Ni/C interface observed by electron holography

Honeycomb-like Ni@C composite nanostructures: synthesis, properties and applications in the detection of glucose and the removal of heavy-metal ions

“…For example, carbon-encapsulated magnetic metal nanoparticles have been prepared by various techniques, including arc techniques, 12,13 magnetron and ionbeam co-sputtering, 14 high-temperature annealing of the mixtures of carbon-based materials and metal precursors, [15][16][17] catalytic chemical vapor deposition, 18,19 pyrolysis of organometallic compounds, 20,21 catalytic decomposition of methane, 22 explosion, 23 spraying methods, 24 submerged pulsed arc in breakdown mode 25 and UHV electron-beam evaporation. 26 However, it is still a huge challenge to fabricate magnetic metal particles coated by carbon via a simple solution route.…”