Perovskite NaCeTi 2O 6-Supported Ni Catalysts for CH 4 Steam Reforming

Shenghong Zhang, Satoshi Muratsugu, Nozomu Ishiguro, Shin ichi Ohkoshi, Mizuki Tada

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Perovskite NaCeTi 2O 6 (NCT)-supported Ni catalysts were prepared and examined for the steam reforming of methane (SRM) with a low H 2O/CH 4 ratio (1:1), and their structures were characterized by means of powder XRD, energy dispersive X-ray spectroscopy high resolution TEM, temperature-programmed desorption of CO 2, temperature-programmed reduction with H 2, Ni K-edge/Ce L III-edge X-ray absorption near edge structure spectroscopy and extended X-ray absorption fine structure A 4wt% Ni/NCT catalyst exhibited higher activity than 4wt% Ni/TiO 2, Ni/(CeO 2+TiO 2), and Ni/Ce 2O 3 catalysts for SRM reactions at 973K, and better resistance to carbon deposition was observed on 4wt% Ni/NCT compared to 4wt% Ni/CeO 2. It is suggested that the characteristic performance of the Ni/NCT catalysts for the SRM reactions are related to the basic character and oxygen conducting behavior of NCT to control the balance of CH 4 decomposition and carbon gasification with steam on the surfaces of the Ni/NCT catalysts.

Original languageEnglish
Pages (from-to)1783-1790
Number of pages8
JournalChemCatChem
Volume4
Issue number11
DOIs
Publication statusPublished - 2012 Nov 1
Externally publishedYes

Keywords

  • Carbon
  • Cerium
  • Nickel
  • Oxidation
  • Supported catalysts

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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