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Synthesis and Characterization of Ni-Pd-0.1CNT/PU Nanocatalyst, Applicable for Methane Reforming

Chaichi, Ardalan | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48353 (07)
  4. University: Sharif University of Technology
  5. Department: Materials Science and Engineering
  6. Advisor(s): Sadrnezhad, Khatiboleslam
  7. Abstract:
  8. Influence of attachment of Multi Walled Carbon Nanotubes (MWCNT) on various nickel nanocatalysts produced by the electroless plating method was investigated via Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Spectroscopy (EDS), Atomic Absorption Spectroscopy (AAS), X-ray Diffraction (XRD), Brunauer-Emmett-Teller (BET) measurements, Temperature Programmed Reduction (TPR) and Temperature Programmed Oxidation (TPO) tests. Application of TPR/TPO data to Kissinger (Redhead) Equation yielded the activation energies of both nickel reduction and nickel oxidation reactions. Addition of MWCNT improved the catalytic effects by easing of the electron transfer and dispersing the expected metallic nanoclusters. Doping with palladium boomed the specific surface area of the nanocatalyst Ni-Pd/PU from 258.2 m2/gr to 611.3 m2/gr and resulted in decreases of up to 30.17 % (for reduction) and 20.59 % (for oxidation) of the activation energies of MWCNT coated nanocatalyst samples. According to the steam reforming of methane tests, the amount of methane conversion enhanced by approximately 23 % for Ni-Pd-0.1CNT/PU sample, in comparison with the industrial catalyst
  9. Keywords:
  10. Multi-Walled Carbon Nanotube ; Nano Catalyst ; Temperature Programmed Reduction (TPR)Analysis ; Reforming Reactor ; Methane ; Temperature Programmed Oxidation (TPO)Analysis ; Kissinger Equation ; Reactor Test

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