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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 1
BKCSDE 31(1)
January 20, 2010

Title	Effect of Bimetallic Pt-Rh and Trimetallic Pt-Pd-Rh Catalysts for Low Temperature Catalytic Combustion of Methane
Author	Margandan Bhagiyalakshmi, Ramani Anuradha, Sang Do Park, Tae Sung Park, Wang Seog Cha, Hyun Tae Jang*
Keywords	Methane conversion, Bimetallic, Trimetallic, Pt-Rh/Al₂O₃, Pt-Rh/ZrO₂
Abstract	Monometallic, bimetallic and trimetallic particles consisting of different weight compositions of Pt-Pd-Rh over pure alumina wash coats have been synthesized and their catalytic performance on methane conversion was studied from 150 to 600 oC. Different catalyst formulations with variable Pt, Pd and Rh contents for bimetallic and trimetallic systems were tried and Pt_(1.5)Rh_(0.3)/Al₂O₃ and Pt_(1.0)Pd_(1.0)Rh_(0.3)/Al₂O₃ shows low T₅₀ and T₉₀ temperatures. Bimetallic and trimetallic particle synergism acts as three way catalysts and therefore, all the catalysts show 100% methane conversion. The effect of supports such as ZrO₂ and TiO₂ on methane combustion was investigated; from T₅₀ and T₉₀ results both Al₂O₃ and ZrO₂ are suitable supports for low temperature methane combustion.
Page	120 - 124
Full Text	PDF

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