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Catalysis Letters

, Volume 121, Issue 3–4, pp 283–290 | Cite as

Pure H2 Production by Decomposition of Methane Over Ni Supported on Hydroxyapatite Catalysts

  • J. Ashok
  • S. Naveen Kumar
  • M. Subrahmanyam
  • A. Venugopal
Article

Abstract

The catalytic decomposition of CH4 for the production of pure H2 is carried out over Ni supported on hydroxyapatite [Ca5(PO4)3(OH)] catalysts at 650 °C and atmospheric pressure. CH4 decomposition activity is decreased with time on stream and finally deactivated completely. The physicochemical properties of the fresh catalysts are characterized by XRD, DTA/TG, TPR and SEM techniques along with CHNS analyses of the used samples. It is found that the 30 wt% Ni/HAp displayed higher H2 production rates over the other Ni loadings, which is correlated with Ni metal surface area measured by O2 pulse chemisorption.

Keywords

Hydroxyapatite Methane decomposition Hydrogen production Carbon filaments Ni metal area 

Notes

Acknowledgment

The authors thank CSIR, New Delhi for funding this project under NMITLI program.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • J. Ashok
    • 1
  • S. Naveen Kumar
    • 1
  • M. Subrahmanyam
    • 1
  • A. Venugopal
    • 1
  1. 1.Catalysis & Physical Chemistry DivisionIndian Institute of Chemical TechnologyHyderabadIndia

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