Characterization of chromium (III) oxide powders prepared by laser-induced pyrolysis of chromyl chloride

Gamma-radiation induced formation of chromium oxide nanoparticles from dissolved dichromate

“…In addition to improving pigment opacity and catalytic activity, reducing the chromium oxide particle size could improve its sintering ability by decreasing the required sintering temperature and by increasing the density of the sintered powder. 6,7 Chromium oxide nanoparticles have been synthesized by various techniques such as hydrothermal reduction, 8 solution combustion synthesis, 9 sonochemical reaction, 10 laser-induced pyrolysis, 11 hydrazine reduction and thermal treatments, 12 supercritical alcohol synthesis, 13 condensation-polymerization, 14 precipitation-gelation, 15 gas condensation, 16 microwave plasma chemistry, 17 and sol-gel methods. 18 The major drawbacks of most of these methods are a large particle size distribution, low yield, and agglomeration of the particles.…”

Synthesis, characterization, and growth mechanism of α-Cr2O3 monodispersed particles

“…The nano-particles of a-Cr 2 O 3 can be deposited with various technologies including thermal decomposition of Cr(III) nitrate solution [12], sol-gel process [13], urea assisted homogeneous precipitation [14], laser induced pyrolysis [15], microwave plasma [16], hydrothermal reduction [17], and gas condensation [18]. However, these methods still have certain limitations when considered in an industrial context, which demands synthesis of a-Cr 2 O 3 nano-particles at low cost, high production yield and high performance.…”

Scanning transmission X-ray microscopy studies of chromium hydroxide hollow spheres and nanoparticles formed by gamma radiation

“…6 Different applications require different crystalline particle size and morphology. Cr 2 O 3 nanoparticles have been synthesized by various techniques including hydrothermal reduction, 7 solution combustion synthesis, 8 sonochemical reaction, 9 laser-induced pyrolysis, 10 hydrazine reduction and thermal treatments, 11 supercritical alcohol D r a f t synthesis, 12 condensation-polymerization, 13 precipitation-gelation, 14 gas condensation, 15 microwave plasma chemistry, 16 and sol-gel methods. 17 The major drawbacks of most of these fabrication methods are a wide particle-size distribution, a low yield, and agglomeration of the particles.…”