Mixed Oxides Without Added Noble Metals Derived from Layered Double Hydroxides of the Hydrotalcite Type in the Hydrodechlorination Reaction of Trichloroethylene

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Abstract

Abstract: NiMgAl-, CuNiAl- and CuMgAl-layered double hydroxides were prepared and after calcination, they were used to promote the hydrodechlorination of trichloroethylene. The calcined materials were active in the reaction and remained so in the repeated reaction after applying the rehydration-recalcination regeneration protocol. The freshly prepared, the calcined, the used, as well as the regenerated materials were studied by a range of methods (X-ray diffractometry, scanning electron microscopy, energy-dispersive X-ray analysis, BET surface area measurements). These results together with reaction data proved that the calcined layered double hydroxides, even without noble metal additives, acted as occasionally highly active and always highly hydrocarbon-selective catalysts in the hydrodechlorination reaction. Graphical Abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)2910-2919
Number of pages10
JournalCatalysis Letters
Volume147
Issue number12
DOIs
Publication statusPublished - Dec 1 2017

Keywords

  • Calcined layered double hydroxides
  • Catalytic hydrodechlorination of trichlorethylene
  • Instrumental characterisation
  • Recycling study

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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