Enhanced catalytic and SERS activities of CTAB stabilized interconnected osmium nanoclusters
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
Enhanced catalytic and SERS activities of CTAB
stabilized interconnected osmium nanoclusters
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| Creator |
Sivasankara Rao , E.
Nithiyanantham, U. Kundu, S. |
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| Subject |
Electrochemical Materials Science
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| Description |
A new route for the formation of osmium nanoparticles (NPs) having different morphologies like
aggregated clusters, chain-like networks, and small spheres are reported. The synthesis was done by
utilizing a simple wet-chemical method at room temperature (RT) by the reaction of OsO4, cetyl
trimethyl ammonium bromide (CTAB), 2,7-dihydroxynaphthalene (2,7-DHN) and NaOH under 30 min of
reaction. The diameter of the individual particles in all the morphologies was B1–3 nm. The synthesized
materials have been tested for catalysis and SERS studies. The catalysis study was examined taking different
organic nitro compounds and the catalysis rate was found superior as compared to other reports. The surface
enhanced Raman scattering (SERS) study was done taking Rose Bengal (R Be) as a probe molecule and the
observed enhancement factor (EF) value was found superior or comparable to most of other noble metal
NPs. The overall synthesis process was simple, less time consuming and cost-effective. The enhanced
catalytic and SERS activities of the Os NCs might open up a new avenue for the application in other organic
catalysis reactions, SERS based detection of environmentally important trace bio-molecules and sensors
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| Publisher |
Royal Society of Chemistry
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| Date |
2014
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3126/1/038-2014.pdf
Sivasankara Rao , E. and Nithiyanantham, U. and Kundu, S. (2014) Enhanced catalytic and SERS activities of CTAB stabilized interconnected osmium nanoclusters. Physical Chemistry Chemical Physics, 16. pp. 22723-22734. ISSN 1463-9076 |
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| Relation |
http://www.rsc.org/pccp
http://cecri.csircentral.net/3126/ |
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