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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.50A [2011] >
IJC-A Vol.50A(01) [January 2011] >
| Title: | A novel route to size and shape controlled synthesis of DMSO capped ruthenium dioxide nanoparticles |
| Authors: | Borah, Geetika
Sharma, Ponchami |
| Keywords: | Catalysts
Nanomaterials
Oxides
Ruthenium dioxide
X-ray diffraction |
| Issue Date: | Jan-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Ruthenium dioxide nanoparticles (RuO2) with an
average
particle size of 54-95 nm are readily synthesized from RuCl3.xH2O
via the formation of ruthenium acetylacetone. The particle size of RuO2
nanoparticle increases with increase in calcination time at
800 °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, 1H
NMR, magnetic measurements and XRD techniques. The XRD pattern demonstrates the
crystalline nature of these nanoparticles. The downfield shift of νS=O
frequency (∆ν=74 cm-1) in FTIR, as well as SEM-EDX
and
1H NMR spectra of the capped RuO2 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. |
| Page(s): | 41-45 |
| CC License: |  CC Attribution- Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.50A(01) [January 2011]
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