Characterization of a nickel-strontium phosphate catalyst for partial oxidation of methane

Jin Hyuk Jun, Sang Jin Lee, Seung Hwan Lee, Tae Jin Lee, Sang Jun Kong, Tae Hoon Lim, Suk Woo Nam, Seong Ahn Hong, Ki June Yoon

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8 Citations (Scopus)

Abstract

A nickel-strontium phosphate catalyst was recently reported to exhibit high activity and selectivity in partial oxidation of methane (POM). Further characterizations have been performed in the present work in order to better understand the characteristics of this catalyst. TEM showed that very fine nickel particles of a few nanometers of the size were present in the needle shape in the sample after the reaction. TPR showed the presence of three nickel species, confirming that the nickel in the strontium hydroxyapatite and phosphate structures comes out as fine particles and is reduced during the reaction. As the calcination time during the preparation increased, the total re-oxidation temperature became higher. This is considered due to larger crystallite size owing to the longer calcination, which results in a smaller amount of nickel coming out of the matrix to the surface.

Original languageEnglish
Pages (from-to)829-834
Number of pages6
JournalKorean Journal of Chemical Engineering
Volume20
Issue number5
DOIs
Publication statusPublished - 2003 Sep

Keywords

  • Calcination
  • Nickel
  • Partial oxidation of methane
  • Strontium nickel hydroxyapatite
  • Strontium nickel phosphate

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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    Jun, J. H., Lee, S. J., Lee, S. H., Lee, T. J., Kong, S. J., Lim, T. H., Nam, S. W., Hong, S. A., & Yoon, K. J. (2003). Characterization of a nickel-strontium phosphate catalyst for partial oxidation of methane. Korean Journal of Chemical Engineering, 20(5), 829-834. https://doi.org/10.1007/BF02697283