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

Research output: Contribution to journalArticlepeer-review

8 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

Bibliographical note

Funding Information:
This work was supported by the Human Resources Development program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government’s Ministry of Knowledge Economy (No. 20114010203050) and the Development of Biohydrogen Production Technology Using Hyper-thermophilic Archaea Program of the Korean government’s Ministry of Land, Transport, and Maritime Affairs.

Keywords

  • CO Reforming
  • Methane
  • Perovskite
  • Synthesis Gas

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering

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