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  • Title: Nanostructured manganese oxide on silica aerogel: a new catalyst toward water oxidation.
    Author: Najafpour MM, Salimi S, Madadkhani S, Hołyńska M, Tomo T, Allakhverdiev SI.
    Journal: Photosynth Res; 2016 Dec; 130(1-3):225-235. PubMed ID: 27037826.
    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) 33+ 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) 33+ 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.
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