Lepidocrocite (γ-FeOOH)
microtubes with scroll morphology
prepared by gas–solution interface technique (GSIT) have been
modified by silver nanoparticles (Ag NPs). The successive ionic layer
deposition (SILD) was first used for the synthesis of the Ag NPs on
the lower surface of a solid film freely lying on the surface of a
solution. The sizes of Ag NPs are about 15 nm after one synthesis
cycle, and their diameters reach 35 nm after three SILD cycles. As
a result of vacuum-drying, the modified film is transformed into microtubes
with a diameter of about 10 μm and a length of 150 μm
in such a way that the inner surface of the microtube is modified
by Ag NPs. The catalytic properties of the microtubes have been observed
by the decomposition of H2O2 in aqueous solution.
The Ag/FeOOH microtubes move in hydrogen peroxide solutions with an
average speed of 117 μm/s. This result is based on the synergetic
effect between lepidocrocite nanosheets and Ag NPs, which results
in the modified microtubes having enhanced mobility.
Straightforward access to bidentate phosphorus ligands and bis(phosphineoxide)ethanes is described based on atom-economic addition reaction. A practical approach was developed to incorporate 2H and 13C labels using easily available reagents.
Authors : Evgeny Leonidovich Ignatiev Jawf4aga@gmail.com
Elena Andreevna Stelmakhova estelmahova@gmail.com
Sergey S. Proskurin proskurin.s.s@gmail.com
Vyacheslav Borisovich Kryhtin v.krykhtin@gmail.com
The article contains an overview of contemporary empirical studies which analyze efficiency of mergers and acquisitions through event study methodology for developed and emerging capital markets. We analyze the main approaches to assessment of the impact of mergers and acquisitions on the company value including that of target firms and acquiring firms.
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