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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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|
|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|
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