Design and fabrication of an automated temperature programmed reaction system to evaluate 3-way catalysts Ce1-x-y(La/Y)(x)PtyO2-delta

Gayen, A and Baidya, Tinku and Ramesh, GS and Srihari, R and Hegde, MS (2006) Design and fabrication of an automated temperature programmed reaction system to evaluate 3-way catalysts Ce1-x-y(La/Y)(x)PtyO2-delta. In: International Conference on Recent Developments in Metal Oxides and Related Materials, , Jan 09-11, 2006, Bangalore, India, pp. 47-55.

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Abstract

A completely automated temperature-programmed reaction (TPR) system for carrying out gas-solid catalytic reactions under atmospheric flow conditions is fabricated to study CO and hydrocarbon oxidation, and NO reduction. The system consists of an all-stainless steel UHV system, quadrupole mass spectrometer SX200 (VG Scientific), a tubular furnace and micro-reactor, a temperature controller, a versatile gas handling system, and a data acquisition and analysis system. The performance of the system has been tested under standard experimental conditions for CO oxidation over well-characterized Ce1-x-y(La/Y)(y)O2-delta catalysts. Testing of 3-way catalysis with CO, NO and C2H2 to convert to CO2, N-2 and H2O is done with this catalyst which shows complete removal of pollutants below 325 degrees C. Fixed oxide-ion defects in Pt substituted Ce1-y(La/Y)(y)O2-y/2 show higher catalytic activity than Pt ion-substituted CeO2.

Item Type:	Conference Paper
Publication:	JOURNAL OF CHEMICAL SCIENCES
Publisher:	Indian Academy of Sciences.
Additional Information:	Copyright of this article belongs to Indian Academy of Sciences.
Keywords:	Automatic TPR; ceria; three way catalysis.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	29 Oct 2010 07:21
Last Modified:	29 Oct 2010 07:21
URI:	http://eprints.iisc.ac.in/id/eprint/32809

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