Nanostructured manganese oxide on frozen smoke: A new water-oxidizing composite

M. M. Najafpour, S. Salimi, S. Esmael Balaghi, M. Hołyńska, T. Tomo, Moayad Hossaini Sadr, Behzad Soltani, Jian-Ren Shen, T. N. Veziroglu, Suleyman Allakhverdiev

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The water-oxidizing complex or oxygen-evolving complex in plants, algae and cyanobacteria is an Mn4CaO5 cluster catalysing light-induced water oxidation. Herein we report that nano-sized Mn oxide/carbon aerogel is an active and low-density catalyst toward water oxidation. The composite was synthesized by a simple, low-cost procedure with different ratio of carbon aerogel to Mn oxide and characterized by scanning electron microscopy, energy-dispersive spectroscopy, high resolution transmission electron microscopy, X-ray diffraction, electronic spectroscopy, Fourier transform infrared spectroscopy, and atomic absorption spectroscopy. Then, the water-oxidizing activity of this composite was considered in the presence of cerium(IV) ammonium nitrate. The composites with a high ratio of Mn oxide to carbon aerogel are good Mn-based catalysts with turnover frequencies of ∼0.33 (mmol O2/(mol Mn·s)). In addition to the water-oxidizing activities of these composites under different conditions, their self-healing reaction in the presence of cerium(IV) ammonium nitrate was studied. We also compare the composite with graphene quantum dots/Mn oxide, which is not stable under these conditions. Using hydrogen to store sustainable energies is a promising strategy in the near future and our results show that nano-sized Mn oxide/carbon aerogel is a promising catalyst for water-splitting systems toward hydrogen evolution.

Original languageEnglish
Pages (from-to)2466-2476
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume41
Issue number4
DOIs
Publication statusPublished - Jan 30 2016

Fingerprint

Manganese oxide
manganese oxides
smoke
Smoke
aerogels
Aerogels
composite materials
oxides
Composite materials
ammonium nitrates
Oxides
water
carbon
Water
cerium
Carbon
catalysts
Cerium
Catalysts
Nitrates

Keywords

  • Artificial photosynthesis
  • Carbon aerogel
  • Manganese oxide
  • Nanotechnology
  • Oxygen
  • Self-healing
  • Water oxidation

ASJC Scopus subject areas

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

Cite this

Najafpour, M. M., Salimi, S., Balaghi, S. E., Hołyńska, M., Tomo, T., Sadr, M. H., ... Allakhverdiev, S. (2016). Nanostructured manganese oxide on frozen smoke: A new water-oxidizing composite. International Journal of Hydrogen Energy, 41(4), 2466-2476. https://doi.org/10.1016/j.ijhydene.2015.11.003

Nanostructured manganese oxide on frozen smoke : A new water-oxidizing composite. / Najafpour, M. M.; Salimi, S.; Balaghi, S. Esmael; Hołyńska, M.; Tomo, T.; Sadr, Moayad Hossaini; Soltani, Behzad; Shen, Jian-Ren; Veziroglu, T. N.; Allakhverdiev, Suleyman.

In: International Journal of Hydrogen Energy, Vol. 41, No. 4, 30.01.2016, p. 2466-2476.

Research output: Contribution to journalArticle

Najafpour, MM, Salimi, S, Balaghi, SE, Hołyńska, M, Tomo, T, Sadr, MH, Soltani, B, Shen, J-R, Veziroglu, TN & Allakhverdiev, S 2016, 'Nanostructured manganese oxide on frozen smoke: A new water-oxidizing composite', International Journal of Hydrogen Energy, vol. 41, no. 4, pp. 2466-2476. https://doi.org/10.1016/j.ijhydene.2015.11.003
Najafpour, M. M. ; Salimi, S. ; Balaghi, S. Esmael ; Hołyńska, M. ; Tomo, T. ; Sadr, Moayad Hossaini ; Soltani, Behzad ; Shen, Jian-Ren ; Veziroglu, T. N. ; Allakhverdiev, Suleyman. / Nanostructured manganese oxide on frozen smoke : A new water-oxidizing composite. In: International Journal of Hydrogen Energy. 2016 ; Vol. 41, No. 4. pp. 2466-2476.
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