Oxidative steam reforming of methane over Ni/α-Al2O3 modified with trace Pd

Kaori Yoshida, Kazu Okumura, Toshihiro Miyao, Shuichi Naito, Shin ichi Ito, Kimio Kunimori, Keiichi Tomishige

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Ni catalysts supported on α-Al2O3 modified with small amounts of Pd were prepared by different impregnation methods to investigate catalytic performance and catalyst bed temperature profile in oxidative steam reforming of methane. The Pd + Ni bimetallic catalysts prepared by the co-impregnation method showed higher resistance to hot-spot formation than monometallic Ni and bimetallic Pd/Ni catalysts prepared by two sequential impregnations, in particular, Pt + Ni catalysts prepared by the co-impregnation method. The additive effect of Pd on the Pd/Ni catalysts was discussed on the bases of metal particle size and structural analysis by Pd K-edge extended X-ray absorption fine structure (EXAFS).

Original languageEnglish
Pages (from-to)217-225
Number of pages9
JournalApplied Catalysis A: General
Volume351
Issue number2
DOIs
Publication statusPublished - 2008 Dec 30
Externally publishedYes

Keywords

  • Co-impregnaiton
  • Hot spot
  • Methane
  • Ni
  • Oxidative reforming
  • Pd
  • Pt
  • Steam reforming
  • Thermography

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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