No abstract

Magnetic nanoparticles have been used as heating agents in CO2 methanation under continuous flow catalyzed by nickel nanoparticles (Ni/SiRAlOx).

There is a theoretical and experimental controversy on the possibility for magnetic nanoparticles (MNPs) heated by high-frequency magnetic fields to reach a temperature much larger than the one of their environments. Here the internal temperature of magnetically heated magnetite MNPs is measured using the temperature dependence of their lattice parameter, and compared to the one of their environments, measured from reference non-magnetic particles. Within the uncertainty of our experimental methods, which is estimated to be below 5°C, the MNP temperature is the same as the one of their environments.