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Synthesis and characterization of supportless Ni-Pd-CNT nanocatalyst for hydrogen production via steam reforming of methane

Chaichi, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ijhydene.2017.11.089
  3. Publisher: Elsevier Ltd , 2018
  4. Abstract:
  5. Supportless Ni-Pd-0.1CNT foamy nanocatalyst with specific surface area of 611.3 m2/g was produced by electroless deposition of nickel, palladium and multiwall carbon nanotube (MWCNT) on interim polyurethane substrate. Application of temperature programmed reduction (TPR) and temperature programmed oxidation (TPO) data into Kissinger (Redhead) kinetic model showed lessening of their activation energies due to Pd and CNT addition. Presence of foamy Ni/SiC caused 8% higher steam reforming of methane; while Ni-Pd-0.1CNT presence resulted in 22% higher methane conversion. The catalytic behavior of the samples was described by morphological and compositional studies which were carried out by transmission electron microscope (TEM), field emission scanning electron microscope (FESEM) equipped with energy dispersive spectroscopy (EDS) and atomic absorption spectrometer (AAS) pondered with Brunauer–Emmett–Teller (BET), TPR, TPO and X-ray diffraction (XRD). © 2017 Hydrogen Energy Publications LLC
  6. Keywords:
  7. Nickel-palladium-CNT nanocatalyst ; Activation energy ; Carbon ; Carbon nanotubes ; Energy dispersive spectroscopy ; Hydrogen production ; Methane ; Multiwalled carbon nanotubes (MWCN) ; Nickel ; Palladium ; Scanning electron microscopy ; Spectrometers ; Transmission electron microscopy ; X ray diffraction ; Yarn ; Atomic absorption spectrometers ; Energy dispersive spectroscopies (EDS) ; Field emission scanning electron microscopes ; Nano-catalyst ; Steam reforming of methane ; Synthesis and characterizations ; Temperature programmed oxidation ; Temperature-programmed reduction ; Steam reforming
  8. Source: International Journal of Hydrogen Energy ; Volume 43, Issue 3 , 2018 , Pages 1319-1336 ; 03603199 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0360319917344695