A highly dispersible, magnetically separable and environmentally friendly nano-sized catalyst for water oxidation

Mohammad Mahdi Najafpour, Saeideh Salimi, Małgorzata Hołyńska, Suleyman Allakhverdiev

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The reaction of KMnO4 with cobalt nanoparticles coated with SiO2 layers forms a highly dispersible, magnetically separable and environmentally friendly catalyst toward water oxidation. The compound was characterized by scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, X-ray Photoelectron Spectroscopy, X-ray diffraction, electron spectroscopy, Fourier transform infrared spectroscopy and atomic absorption spectroscopy. The nano-sized catalyst shows self-healing in the presence of cerium(IV) ammonium nitrate and under the water-oxidation conditions. The turnover frequencies for the catalyst toward water oxidation in the presence of cerium(IV) ammonium nitrate and [Ru(bpy)3]3+ are 0.15 and 0.25 (mmol O2/mol Mn·s), respectively.

Original languageEnglish
Pages (from-to)4616-4623
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume41
Issue number8
DOIs
Publication statusPublished - Mar 2 2016
Externally publishedYes

Fingerprint

ammonium nitrates
Cerium
cerium
catalysts
Oxidation
oxidation
Catalysts
Nitrates
water
Water
Atomic spectroscopy
Electron spectroscopy
healing
Absorption spectroscopy
Fourier transform infrared spectroscopy
electron spectroscopy
Energy dispersive spectroscopy
Cobalt
absorption spectroscopy
x rays

Keywords

  • Artificial photosynthesis
  • Heterogeneous catalyst
  • Manganese oxide
  • Water oxidation

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

A highly dispersible, magnetically separable and environmentally friendly nano-sized catalyst for water oxidation. / Najafpour, Mohammad Mahdi; Salimi, Saeideh; Hołyńska, Małgorzata; Allakhverdiev, Suleyman.

In: International Journal of Hydrogen Energy, Vol. 41, No. 8, 02.03.2016, p. 4616-4623.

Research output: Contribution to journalArticle

Najafpour, Mohammad Mahdi ; Salimi, Saeideh ; Hołyńska, Małgorzata ; Allakhverdiev, Suleyman. / A highly dispersible, magnetically separable and environmentally friendly nano-sized catalyst for water oxidation. In: International Journal of Hydrogen Energy. 2016 ; Vol. 41, No. 8. pp. 4616-4623.
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