Nanostructured manganese oxide on silica aerogel: a new catalyst toward water oxidation

Mohammad Mahdi Najafpour, Saeideh Salimi, Sepideh Madadkhani, Małgorzata Hołyńska, Tatsuya Tomo, Suleyman I. Allakhverdiev

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Herein we report on the synthesis and characterization of nano-sized Mn oxide/silica aerogel with low density as a good catalyst toward water oxidation. The composite was synthesized by a simple and low-cost hydrothermal procedure. In the next step, we studied the composite in the presence of cerium(IV) ammonium nitrate and photo-produced Ru(bpy)3 3+ as a water-oxidizing catalyst. The low-density composite is a good Mn-based catalyst with turnover frequencies of ~0.3 and 0.5 (mmol O2/(mol Mn·s)) in the presence of Ru(bpy)3 3+ and cerium(IV) ammonium nitrate, respectively. In addition to the water-oxidizing activities of the composite under different conditions, its self-healing reaction in the presence of cerium(IV) ammonium nitrate was also studied.

Original languageEnglish
Pages (from-to)225-235
Number of pages11
JournalPhotosynthesis research
Volume130
Issue number1-3
DOIs
Publication statusPublished - Dec 1 2016

Keywords

  • Artificial photosynthesis
  • Nano-sized manganese oxide
  • Oxygen
  • Self-healing
  • Silica aerogel
  • Water oxidation

ASJC Scopus subject areas

  • Biochemistry
  • Plant Science
  • Cell Biology

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