Method for the production of pure and C-doped nanoboron powders tailored for superconductive applications.

The present paper describes the improvement of the performances of boron powder obtained applying the freeze-drying process (FDP) for the nanostructuration and doping of BO, which is here used as boron precursor. After the nanostructuration process, BO is reduced to elemental nanoboron (nB) through magnesiothermic reaction with Mg. For this work, the usefulness of the process was tested focusing on the carbon-doping (C-doping), using C, inulin and haemoglobin as C sources.