Ti(IV)-doped γ-Fe2O3 nanoparticles possessing unique textural and chemical properties: Enhanced suppression of phase transformation and promising catalytic activity

Abbas Khaleel, Maliha Parvin, Moahmmed AlTabaji, Ahmed Al-zamly

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Nanostructured Ti(IV)-doped γ-Fe2O3 was prepared via a sol-gel method, and the effect of doping on the phase stability, textural properties, and catalytic activity was investigated. Well-dispersed 10% Ti in γ-Fe2O3 structure was found to significantly suppress its conversion to α-Fe2O3. While undoped product contained both phases, γ- and α-Fe2O3, at 400 °C, its doped counterpart contained γ-Fe2O3 as the sole phase at temperatures as high as 500 °C and partial conversion started only at 550 °C. Doping also resulted in modified textural properties, including smaller particles, larger surface areas, and higher mesoporosity, as well as enhanced reducibility and catalytic activity.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalJournal of Solid State Chemistry
Volume259
DOIs
Publication statusPublished - Mar 2018

Keywords

  • Metal oxides
  • Nanoparticles
  • Oxidation catalysis
  • Sol-gel preparation
  • γ-FeO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Ti(IV)-doped γ-Fe2O3 nanoparticles possessing unique textural and chemical properties: Enhanced suppression of phase transformation and promising catalytic activity'. Together they form a unique fingerprint.

Cite this