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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Study on Catalytic Oxidation of Carbonmonoxide over Nano-Size Platinum + Alumina Composite

Address:   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

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.
Platinum, microemulsion, polymer, nanoparticles, catalyst, mass spectrometer, alumina, poly(ethylene glycol).
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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