Photosynthesis Research

, Volume 126, Issue 2–3, pp 477–487 | Cite as

Manganese oxides supported on gold nanoparticles: new findings and current controversies for the role of gold

  • Mohammad Mahdi Najafpour
  • Seyedeh Maedeh Hosseini
  • Małgorzata Hołyńska
  • Tatsuya Tomo
  • Suleyman I. Allakhverdiev
Regular Paper


We synthesized manganese oxides supported on gold nanoparticles (diameter <100 nm) by the reaction of KMnO4 with gold nanoparticles under hydrothermal conditions. In this green method Mn oxide is deposited on the gold nanoparticles. The compounds were characterized by scanning electron microscopy, energy-dispersive spectrometry, high-resolution transmission electron microscopy, X-ray diffraction, UV–Vis spectroscopy, Fourier transform infrared spectroscopy, and atomic absorption spectroscopy. In the next step, the water-oxidizing activities of these compounds in the presence of cerium(IV) ammonium nitrate as a non-oxo transfer oxidant were studied. The results show that these compounds are good catalysts toward water oxidation with a turnover frequency of 1.0 ± 0.1 (mmol O2/(mol Mn·s)). A comparison with other previously reported Mn oxides and important factors influencing the water-oxidizing activities of Mn oxides is also discussed.


Gold nanoparticles Catalyst Heterogeneous Manganese oxide Water oxidation 



MMN and SMH are grateful to the Institute for Advanced Studies in Basic Sciences and the National Elite Foundation for financial support. MH acknowledges Prof. Dr. S. Dehnen for generous support. This work was supported by Grant-in-Aids for Scientific Research from the Ministry of Education of Japan (24370025 and 26220801) to TT. SIA was supported by grants from the Russian Foundation for Basic Research (Nos: 14-04-01549, 14-04-92690) and by Molecular and Cell Biology Programs of the Russian Academy of Sciences.

Supplementary material

11120_2015_164_MOESM1_ESM.doc (10.5 mb)
Supplementary material 1 (DOC 10749 kb)


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Mohammad Mahdi Najafpour
    • 1
    • 2
  • Seyedeh Maedeh Hosseini
    • 1
  • Małgorzata Hołyńska
    • 3
  • Tatsuya Tomo
    • 4
  • Suleyman I. Allakhverdiev
    • 5
    • 6
    • 7
  1. 1.Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS)ZanjanIran
  2. 2.Center of Climate Change and Global WarmingInstitute for Advanced Studies in Basic Sciences (IASBS)ZanjanIran
  3. 3.Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW)Philipps-Universität MarburgMarburgGermany
  4. 4.Department of Biology, Faculty of ScienceTokyo University of ScienceTokyoJapan
  5. 5.Controlled Photobiosynthesis Laboratory, Institute of Plant PhysiologyRussian Academy of SciencesMoscowRussia
  6. 6.Institute of Basic Biological ProblemsRussian Academy of SciencesPushchinoRussia
  7. 7.Department of Plant Physiology, Faculty of BiologyM.V. Lomonosov Moscow State UniversityMoscowRussia

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