A novel route to size and shape controlled synthesis of DMSO capped ruthenium dioxide nanoparticles

作者：Borah Geetika^*; Sharma Ponchami

来源：Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry , 2011, 50(1): 41-45.

• Catalysts
• Nanomaterials
• Oxides
• Ruthenium dioxide
• X-ray diffraction

Ruthenium dioxide nanoparticles (RuO(2)) with an average particle size of 54-95 nM are readily synthesized from RuCl(3).xH(2)O via the formation of ruthenium acetylacetone. The particle size of RuO(2) nanoparticle increases with increase in calcination time at 800 degrees C. The ruthenium dioxide nanoparticles have also been capped with DMSO to make them soluble in common organic solvents. These synthesized nanocrystallites have been characterized by FTIR, UV-vis, SEM-EDX, (1)H NMR, magnetic measurements and XRD techniques. The XRD pattern demonstrates the crystalline nature of these nanoparticles. The downfield shift of v(S)=o frequency (Delta v=74 cm(-1)) in FTIR, as well as SEM-EDX and (1)H NMR spectra of the capped RuO(2) nanoparticle confirm the capping with DMSO. UV-vis analysis shows that the absorption peak is blue-shifted with decrease of particle size. Magnetic measurements show that these nano oxides have nearly zero magnetic remanence, a linear response of magnetization and finally reach saturation magnetization at low external field in the range 2625-2650 Oe.

• 出版日期2011-1