Improvement of the oxidation stability of cobalt nanoparticles

• Celin Dobbrow and
• Annette M. Schmidt

Beilstein J. Nanotechnol. 2012, 3, 75–81, doi:10.3762/bjnano.3.9

• nanoparticles can effectively be protected against oxidation in order to improve their mid- to longterm stability. Keywords: cobalt nanoparticles; core–shell particles; isothermal oxidation; nanoscale passivation; parabolic rate constant; Findings Magnetic nanoparticles are currently given great attention due

• ). The decay is attributed to the progressing oxidation process, which results in consumption of the magnetic cobalt phase. The results show that the relative saturation magnetization, Ms/Ms,0 decreases parabolically with time t, according to where kM(T) is the parabolic rate constant at a given