Research on Chemical Intermediates

, Volume 41, Issue 2, pp 1023–1034 | Cite as

Effects of functionalization and catalyst treatments on selective behavior of multi-walled carbon nanotube-supported palladium catalysts in hydrogenation of acetylene



Two nanocatalysts of palladium over multi-walled carbon nanotubes (MWCNT) were synthesized and their catalytic properties evaluated in selective hydrogenation of acetylene. Different procedures were applied to synthesize catalysts which resulted in two distinct average particle sizes of palladium (Pd) over the MWCNT. The resulting catalysts displayed dissimilar NH3-TPD behaviors as well as different selectivity performances at lower temperatures. While enhancement of the hydrogen transfer mechanism occurred upon the temperature increase, similar behaviors for the aforementioned materials were obtained. Furthermore, it was revealed that the catalytic performance at higher temperatures did not depend upon the Pd particle size or heterogeneous energetic sites formed during functionalizing of the MWCNT material.


Multi-walled carbon nanotube H2O2 functionalizing Particle size Selective hydrogenation Ethylene yield 



The authors would like to express their gratitude to the RIPI, Tehran, Iran, for their financial support of this project.


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • H. Bazzazzadegan
    • 1
  • M. Kazemeini
    • 1
  • A. M. Rashidi
    • 2
  1. 1.Department of Chemical and Petroleum EngineeringSharif University of TechnologyTehranIslamic Republic of Iran
  2. 2.Nanotechnology Research CentreResearch Institute of Petroleum Industry (RIPI)TehranIslamic Republic of Iran

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