# Low-Temperature Water Gas Shift Reaction on Combustion Synthesized Ce1-xPtxO2-\delta Catalyst

Bera, Parthasarathi and Malwadkar, Sachin and Gayen, Arup and Satyanarayana, CVV and Rao, BS and Hegde, MS (2004) Low-Temperature Water Gas Shift Reaction on Combustion Synthesized Ce1-xPtxO2-\delta Catalyst. In: Catalysis Letters, 96 (3-4). pp. 213-219.

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## Abstract

Catalytic activity of $Pt^{2+}$ ion substituted $CeO_2$ synthesized by solution combustion method was tested for low-temperature water gas shift reaction in $H_2$ rich steam reformate. XPS studies show that Pt is dispersed as ions and there is no change in Pt oxidation state after the reaction. CO conversion is found to be maximum at 200 "C over $Ce_{1–x} Pt_ x O_2-\delta$ catalysts without any methanation. The values of rate are 1.86 and 4.66 $\mu$mol/g/s at 125 and 150"C respectively with a dry gas flow rate of 6 $Lh^{–1}$ over 2% $Pt/CeO_2.$ combustion synthesis - $Ce_{1–x} Pt _x O_2-\delta$ - low-temperature (LTS) - $H_2$ - fuel cell

Item Type: Journal Article Copyright of this article belongs to Springer. Division of Chemical Sciences > Solid State & Structural Chemistry Unit 03 May 2006 19 Sep 2010 04:26 http://eprints.iisc.ernet.in/id/eprint/6542