Carbon dioxide reforming of methane to synthesis gas over LaNi 1-xCr xO 3 perovskite catalysts

Joonho Kim, Taeyoon Kim, Jung Whan Yoo, Ki Bong Lee, Suk In Hong

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6 Citations (Scopus)

Abstract

Carbon dioxide reforming of methane was investigated over LaNi 1-xCr xO 3 perovskite catalysts which were prepared by the malic acid method. The respective perovskite catalysts were a single phase of perovskite oxide without impurity phases. Their reduction behavior was characterized by temperature programmed reduction. In the LaNi 1-xCr xO 3 perovskite catalysts, the catalytic activities were closely related to the reduction behavior of the catalysts, and the partial substitution of Cr to the B-site of perovskite catalysts promoted stability against reduction. When the x values were lower than 0.4, the LaNi 1-xCr xO 3 perovskite catalysts were decomposed to La 2O 3 and Ni and the decomposition of perovskite structure led to large coke deposition. When the x values were higher than 0.4, the LaNi 1-xCr xO 3 perovskite catalysts showed reduced catalytic activity but became stable to reduction and coke formation in the reforming reaction.

Original languageEnglish
Pages (from-to)1329-1335
Number of pages7
JournalKorean Journal of Chemical Engineering
Volume29
Issue number10
DOIs
Publication statusPublished - 2012 Oct 1

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Keywords

  • CO Reforming
  • Methane
  • Perovskite
  • Synthesis Gas

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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