15 Citations (Scopus)

Abstract

Mixed nanocrystalline Ce-Zr-O oxides (Ce/Zr = 1 or 7/3) were prepared by modified Pechini route using ethylene glycol solutions of metal salts. Detailed characterization of their real structure and surface properties by X-ray diffraction on synchrotron radiation with the full-profile Rietveld analysis, high resolution electron microscopy with elemental analysis, Raman spectroscopy, UV-Vis and X-ray photoelectron spectroscopy revealed a high homogeneity of cations distribution in nanodomains resulting in stabilization of disordered cubic phase. This provides a high dispersion of NiO loaded on these mixed oxides by wet impregnation, a high reactivity and mobility of oxygen in these catalysts and strong interaction of Ni with support in the reduced state. This helps to achieve a high activity and coking stability of developed catalysts in CH4 dry reforming in feeds with CH4 concentration up to 15% and CH4/CO2 ratio =1.

Original languageEnglish
Pages (from-to)363-376
Number of pages14
JournalOpen Chemistry
Volume14
Issue number1
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • Ce-Zr-O oxide
  • coking stability
  • methane dry reforming
  • Ni stabilization

Fingerprint Dive into the research topics of 'Ni-loaded nanocrystalline ceria-zirconia solid solutions prepared via modified Pechini route as stable to coking catalysts of CH<sub>4</sub> dry reforming'. Together they form a unique fingerprint.

Cite this