Promotional effect of magnesia addition to active carbon supported Pd catalyst on the characteristics and hydrodechlorination activity of CCl2F2

J, Krishna murthy and S, Chandra shekar and A H, Padmasri and A, Venugopal and S, Sivakumar and B M , Nagaraja and V, Shashikala and B, David Raju and P, Kanta Rao and K S , Rama Rao (2004) Promotional effect of magnesia addition to active carbon supported Pd catalyst on the characteristics and hydrodechlorination activity of CCl2F2. Catalysis Communications , 5 (3). pp. 161-167.

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Official URL: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6W7K-4BK2B09-1&_user=518931&_coverDate=03%2F31%2F2004&_alid=604586974&_rdoc=6&_fmt=full&_orig=search&_cdi=6629&_sort=d&_docanchor=&view=c&_ct=55&_acct=C000025838&_version=1&_urlVersion=0&_userid=51

Abstract

Magnesia modified active carbon supported palladium (Pd–MgO/C) catalyst prepared by co-impregnation, has shown superior activity in the hydrodechlorination of CCl2F2 to produce CH2F2 in greater yields compared to Pd/C and Pd/MgO catalysts. The high activity of Pd–MgO/C catalyst is due to the synergistic effect of Pd/C and Pd/MgO components. CO chemisorption results indicate the formation of bigger particles of Pd in Pd–MgO/C catalyst and the formation of MgF2 from MgO (on reaction with HF released during the reaction), induce electron deficient surface so that the rate of the desorption of intermediate CF2* adsorbed species is more facile yielding CH2F2.

Item Type:	Article
Uncontrolled Keywords:	Pd–MgO/C catalyst; Hydrodechlorination; Synergistic effect
Subjects:	Science > Chemistry
ID Code:	982
Deposited By:	Prof Balasubramanian Viswanathan
Deposited On:	31 Jul 2007 14:33
Last Modified:	31 Jul 2007 14:33

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