Health & Environmental Research Online (HERO)


Print Feedback Export to File
999636 
Journal Article 
Studies on alumina supported Pd–Fe bimetallic catalysts prepared by deposition–precipitation method for hydrodechlorination of chlorobenzene 
N. Seshu Babu; N. Lingaiah; J. Vinod Kumar; P.S. Sai Prasad 
2009 
1 
Applied Catalysis A: General
ISSN: 0926-860X
EISSN: 1873-3875 
367 
1-2 
70-76 
7 
English 
WOS:000271345200009 
The gas phase catalytic hydrodechlorination (HDC) of chlorobenzene was investigated over alumina supported Pd-Fe bimetallic catalysts. A series of Pd-Fe/Al(2)O(3) catalysts with various Fe loadings were prepared by deposition-precipitation (DP) method and characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), temperature programmed reduction (TPR), temperature programmed desorption of H(2) (TPD) and pulse CO chemisorption. XPS and TPR analyses suggested the formation of Pd(n+) species when the catalysts were prepared by DP method. The TPR results also revealed that, the addition of small amounts of Fe as second metal to Pd/Al(2)O(3) preferentially stabilized the lower oxidation state of Pd. The addition of Fe to Pd/Al(2)O(3) improves the stability of the catalyst during the hydrodechlorination of chlorobenzene as compared to monometallic Pd catalyst. The high activity and stability of bimetallic Pd-Fe catalysts can be attributed to the formation of active Pd(n+) species at the interfaces of Pd-O-Fe. (C) 2009 Published by Elsevier B.V. 
Chlorobenzene;Pd–Fe bimetallic catalysts;Deposition–precipitation;Palladium;Iron 
01 
• Methanol (Non-Cancer)
     Search 2012
          WOS