Highly active and stable lanthanum-doped core-shell-structured Ni@SiO 2 catalysts for the partial oxidation of methane to syngas

Lei Li, Yao Yao, Bo Sun, Zhaoyang Fei, Hao Xia, Jing Zhao, Weijie Ji*, Chak Tong AU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

The nanostructures of silica-encapsulated NiO nanoparticles (NPs) doped with La, Ce, Ba, Co, Cu, and Fe were prepared and tested as catalysts for the partial oxidation of methane to syngas. Techniques that include TEM, XRD, Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), H 2 temperature-programmed reduction (TPR), and O2 temperature-programmed oxidation (TPO) were employed to characterize the fresh and used catalysts to understand the structure-performance relationship. The La-doped Ni@SiO2 catalyst is superior to those doped with other elements. The effect of the reaction conditions on the catalyst performance over the best catalyst were also studied. The La2O3 species that were distributed uniformly throug

Original languageEnglish
Pages (from-to)3781-3787
Number of pages7
JournalChemCatChem
Volume5
Issue number12
DOIs
Publication statusPublished - Dec 2013

Scopus Subject Areas

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

User-Defined Keywords

  • core-shell structure
  • doping
  • methane
  • nanoparticles
  • nickel
  • partial oxidation
  • syngas

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