Optimizing hydrogen production: influence of promoters in methane decomposition on titania-modified-zirconia supported fe catalyst

Ahmed S. Al-Fatesh*, Dharmesh M. Vadodariya, Mohammed O. Bayazed, Ahmed I. Osman*, Ahmed Aidid Ibrahim, Anis Hamza Fakeeha, Yousef M. Alanazi, Ahmed E. Abasaeed, Rawesh Kumar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

This study addresses the pivotal challenge of hydrogen production through methane decomposition, offering a pathway to achieving clean energy goals. Investigating the utilization of titania-modified zirconia dual redox supports (10TiZr) in iron or doped iron-based catalysts for the CH4 decomposition reaction, our research involves a thorough characterization process. This includes analyses of the surface area porosity, X-ray diffraction, Raman-infrared spectroscopy, and temperature-programmed reduction/oxidation. The observed sustained enhancement in catalytic activity over extended durations suggests the in situ formation of catalytically active sites. The introduction of Co or Ni into the 30Fe/10TiZr catalyst leads to the generation of a higher density of reducible species. Furthermore, the Ni-promoted 30Fe/10TiZr catalyst exhibits a lower crystallinity, indicating superior dispersion. Notably, the cobalt-promoted 30Fe/10TiZr catalyst achieves over 80% CH4 conversion and H2 yield within 3 h. Additionally, the Ni-promoted 30Fe/10TiZr catalyst attains a remarkable 87% CH4 conversion and 82% H2 yield after 3 h of the continuous process.

Original languageEnglish
Pages (from-to)20322–20330
Number of pages9
JournalACS Omega
Volume9
Issue number18
Early online date25 Apr 2024
DOIs
Publication statusPublished - 07 May 2024

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering

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