Study of the composition of ternary mixed oxides: Use of these materials on a hydrogen production process

F. Melo*, Natalia Morlanes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Mixed oxides obtained by thermal decomposition of layered double hydroxides have been studied in the reaction of hydrocarbon steam reforming for producing hydrogen. The introduction of several elements on the structure could influence the metal electronic configuration, reducibility, particle size, dispersion and surface area modifying its catalytic performance. The effect of composition on structure and reactivity of these materials has been studied. Nickel, magnesium and aluminium from base catalyst have been substituted by different elements. Ni has been substituted by other active metals for this process like Co, Cu, Pd or Ru; Mg has been substituted by Mn, Zn, Ca or Li; and Al has been substituted by Fe, Cr, La or Ce. Samples have been characterized by N2 adsorption (BET), X-ray diffraction (XRD), temperature-programmed reduction (TPR) and elemental analysis. Composition has an important effect on catalytic performance.

Original languageEnglish (US)
Pages (from-to)374-382
Number of pages9
JournalCatalysis Today
Volume133-135
Issue number1-4
DOIs
StatePublished - Apr 1 2008

Keywords

  • Mixed oxides
  • Nickel catalysts promotion
  • Steam reforming

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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