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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