Journal : Asian Journal of Research in Chemistry
Volume No. : 4
Issue No. : 6
Year : 2011
Pages : 1005-1008
ISSN Print : 0974-4169
ISSN Online : 0974-4150
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O.P. Yadav1*, V.K. Garg1, Y.K. Yadav2 and Eleni Daoutsali3
1 Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar-125001, India
2Department of Agricultural Processing and Energy, Haryana Agricultural University, Hisar-125001, India
3Institut für Didaktik der Chemie
Fliednerstr. 21
48149 Münster, Germany
*Corresponding Author
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DOI No:
ABSTRACT:
Nano-size platinum particles were synthesized by chemical reduction of Pt+4 ions in water-in-oil microemulsion. As synthesized platinum nanoparticles have been characterized using TEM and XRD techniques. Platinum (2%)+Alumina composite was used as a catalyst for carrying out the oxidation of CO to CO2, over 50-5000C, in a suitably designed converter comprising a vertical quartz tube connected to a quadrupole mass spectrometer. Effects of [Water]/[Surfactant] ratio and the presence of polyethylene glycol (PEG) in the microemulsion on the size and catalytic efficiency of as-synthesized platinum nanoparticles have been investigated. The size of platinum nanoparticles grows further on increasing [Water]/[Surfactant] ratio in the microemulsion composition. Whereas, using pure alumina as catalyst, conversion of CO to CO2 occurs at 3000C, such conversion occurs at much lower temperature (2250C) using alumina+Pt (2%) as catalyst. CO to CO2 conversion temperature is further lowered to 2000C when the platinum nanoparticles synthesized in microemulsion, stabilized by polyethylene glycol (PEG), are used in the above composite catalyst.
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KEYWORDS:
Platinum, microemulsion, polymer, nanoparticles, catalyst, mass spectrometer, alumina, poly(ethylene glycol).
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Cite:
O.P. Yadav, V.K. Garg, Y.K. Yadav, Eleni Daoutsali. Study on Catalytic Oxidation of Carbonmonoxide over Nano-Size Platinum + Alumina Composite. Asian J. Research Chem. 4(6): June, 2011; Page 1005-1008.
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