JOURNAL ARTICLE

Ce1−xMgxO2−δ solid solution supported Ni-based catalysts for autothermal reforming of acetic acid for hydrogen production: effect of Mg doping.

  • Published In: Bulletin of the Chemical Society of Japan, 2025, v. 98, n. 2. P. 1 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Zhang, Ning; Pang, Fangqiao; Gan, Mao; Huang, Lihong 3 of 3

Abstract

This article focuses on the development and evaluation of Ni/ Ce1−xMgxO2−δ solid solution catalysts for the autothermal reforming (ATR) of biomass-derived acetic acid (HAc) to produce hydrogen. By doping Mg2+ ions into the CeO2 lattice, a defective Ce1−xMgxO2−δ solid solution with enhanced oxygen vacancies and lattice strain was formed, which improved oxygen mobility and strengthened the interaction between the support and active Ni0 species. The optimized Ni0.8Ce1.85Mg0.5O5±δ catalyst demonstrated complete acetic acid conversion, a stable hydrogen yield of 2.61 mol-H2/mol-HAc, suppressed methane and acetone byproducts, high turnover frequency (15.7 s−1), and low activation energy (45.0 kJ/mol). Density functional theory calculations supported these findings by showing reduced energy barriers for oxygen vacancy formation in the Mg-doped structure, facilitating carbon precursor gasification and catalyst stability during ATR.

Additional Information

  • Source:Bulletin of the Chemical Society of Japan. 2025/02, Vol. 98, Issue 2, p1
  • Document Type:Article
  • Subject Area:Chemistry
  • Publication Date:2025
  • ISSN:00092673
  • DOI:10.1093/bulcsj/uoaf003
  • Accession Number:185488905
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