Performance of NiO-MgO solid solution-supported Pt catalysts in oxidative steam reforming of methane

Mohammad Nurunnabi, Baitao Li, Kimio Kunimori, Kimihito Suzuki, Ken Ichiro Fujimoto, Keiichi Tomishige

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

The effect of Pt addition to NiO-MgO solid solution catalysts on the performance in oxidative steam reforming of methane was investigated. In the oxidative reforming of methane, Pt/NiO-MgO gave much higher methane conversion than NiO-MgO and Pt/MgO, especially under short contact time (low W/F: W = catalyst weight, F = total flow rate). Although the effect of Pt was not clear in temperature program reduction profiles, the additive effect of Pt is remarkable in oxidative reforming of methane in term of catalyst activation. In the case of Pt/NiO-MgO catalysts, even when the H2 reduction pretreatment was not done, the catalyst can be activated at a temperature higher than 773 K with a reactant gas including methane, steam, or oxygen. This behavior is related to the methane combustion activity. The order of the activity was as follows: Pt/NiO-MgO ≫ Pt/MgO > NiO-MgO. High combustion activity is related to methane activation ability, and this can make the catalyst activation and reduction easier.

Original languageEnglish
Pages (from-to)272-280
Number of pages9
JournalApplied Catalysis A: General
Volume292
Issue number1-2
DOIs
Publication statusPublished - 2005 Sep 18
Externally publishedYes

Keywords

  • Ni
  • NiO-MgO solid solution
  • Oxidative steam reforming of methane
  • Pt
  • Self-activation

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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