Nanopowders (NPds) of pure CeO 2 of a specific surface area up to 210 m 2 /g and those doped with copper, carbon, and iron (≤1 wt % of dopant) of a specific surface area in the range 130-160 m 2 /g have been produced by evaporation with a pulsed electron beam. According to the X ray phase analysis data, no sec ondary phases (aside from the cubic CeO 2 phase) were found in the produced NPds. All the powders con tained fine and coarse crystalline fractions differing in the size of their coherent scattering region (CSR) and in their amorphous component. The degree of crystallinity of the powders was not above 22%. The powders have a fractal structure and consist of agglomerates of sizes from dozens to hundreds of nanometers formed by crystalline nanoparticles (NPts) 3-5 nm in size with a very narrow particle size distribution. NPds have a high structural defectiveness degree, which was reflected in their magnetic properties. The room ferromag netism was established in NPds of pure CeO 2 -x and those doped with nonmagnetic elements (carbon and copper): here the ferromagnetic state in the CeO 2 C system was established for the first time, whereas the magnetic moment on the carbon atom was 35 fold lower than the theoretical estimation. The ferromagnetic contribution to CeO 2 NPd increases with a decrease in the NPt size and reaches 0.1 emu/g in CeO 2 Fe NPd (x Fe = 0.54 wt %). It has been established that there is no direct dependence between magnetization and the content of iron ions in the CeO 2 Fe based NPds.
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