Transition-metal-doped Fe2O3 nanoparticles for oxygen evolution reaction

Yichun Yin, Xiwang Zhang, Chenghua Sun

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10 Citations (Scopus)

Abstract

Hematite (α-Fe2O3) has been extensively studied as a promising photocatalyst, with the capacity to split water under visible light. To tune its electronic structure and improve the performance for oxygen evolution reaction (OER), high-quality single crystals of α-Fe2O3 nanoparticles were synthesized and doped by various transition metals (M=V, Cr, Mn, Zn, Co, Ni, Cu, Nb, Mo, Ti) by a molten-salt flux method. Optical, electronic and catalytic properties of transition-metal-doped α-Fe2O3 (TM-doped α-Fe2O3) have been systematically investigated. Cobalt has been identified as the best dopant for α-Fe2O3, reducing the OER overpotential by 0.16 V with respect to the undoped.

Original languageEnglish
Pages (from-to)430-436
Number of pages7
JournalProgress in Natural Science
Volume28
Issue number4
DOIs
Publication statusPublished - 1 Aug 2018

Keywords

  • Hematite
  • Metal doping
  • Oxygen evolution reaction
  • Water splitting

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