Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Roman Flyunt"'
Autor:
Bernd Abel, Wolfgang Knolle, Roman Flyunt, Sergej Naumov, Ralf Hermann, Siegfried Eigler, Axel Kahnt
Publikováno v:
RSC Advances. 6:68835-68845
Reduction of graphene oxide (GO) in aqueous dispersions by strongly reducing free radicals has recently been identified to be a very powerful approach, because functional groups are removed softly but efficiently, and non-volatile impurities as well
Autor:
Siegfried Eigler, Bernd Abel, Wolfgang Knolle, Roman Flyunt, Christian Laube, Axel Kahnt, Ralf Hermann, Sergej Naumov
Publikováno v:
Nanoscale. 7:19432-19437
Understanding the mechanism of the reduction of graphene oxide (GO) is a key-question in graphene related materials science. Here, we investigate the kinetics of the reaction of radiolytically generated hydrated electrons with GO in water. The electr
Autor:
Sergej Naumov, Vasile Lozan, Norman Beyer, Gunther Steinfeld, Berthold Kersting, Roman Flyunt, Bernd Abel
Publikováno v:
Chemistry - A European Journal. 23
Mechanistic aspects of the radiation-chemical reduction of graphene oxide to graphene-like materials
Autor:
Andriy Lotnyk, Dirk M. Guldi, Roman Flyunt, Bernd Abel, Jenny Malig, Wolfgang Knolle, Axel Kahnt, Andrea Prager
Publikováno v:
International Journal of Radiation Biology. 90:486-494
The aim of the work was to investigate mechanistic details of the preparation of graphene-like materials (GLM) via reduction of graphene oxide (GO) in aqueous dispersions by electron beam (EB) generated reducing free radicals.A 10 MeV linear accelera
Autor:
Bernd Abel, Roman Flyunt, Berthold Kersting, Norman Beyer, Gunther Steinfeld, Vasile Lozan, Sergej Naumov
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 23(10)
The dinuclear nickel complexes [Ni2L(mu-O2CR)](ClO4) (R = Me 4, R = OMe 6), where L2- is a 24-membered macrocyclic N6S2 ligand, react readily with excess I2 in MeCN solution at 4° C to form stable mono(I2) and bis(I2) charge transfer (CT) adducts of
Publikováno v:
ChemSusChem. 9(23)
Similar to polymer electrolyte membrane fuel cells, the widespread application of solid acid fuel cells (SAFCs) has been hindered partly by the necessity of the use of the precious-metal catalyst Pt in the electrodes. Here we investigate multi-walled
Autor:
Axel Kahnt, Bernd Abel, Roman Flyunt, Tilmann Häupl, Wolfgang Knolle, Andrea Prager, Andriy Lotnyk, Siegfried Eigler, Christian E. Halbig
Publikováno v:
Nanoscale. 8(14)
This work highlights a surprisingly simple and kinetically controlled highly efficient indirect method for the production of high quality reduced graphene oxide (rGO) flakes via UV irradiation of aqueous dispersions of graphene oxide (GO), in which t
Autor:
Evelin Beyer, Roman Flyunt, Franziska Weichelt, Michael R. Buchmeiser, Rico Emmler, Mario Beyer
Publikováno v:
Macromolecular Symposia. 301:23-30
Summary: Nano-sized zinc oxide (ZnO) was chosen as a suitable candidate for the UV-protection of coatings. ZnO-based acrylate coatings were applied to polycarbonate plates, glass plates and impregnated wood. Coated samples were artificially weathered
Autor:
Rico Emmler, Roman Flyunt, Evelin Beyer, Franziska Weichelt, Michael R. Buchmeiser, Mario Beyer
Publikováno v:
Macromolecular Materials and Engineering. 295:130-136
Nanocomposite UV coatings with adjustable properties for use on wood substrates in outdoor conditions were developed. Nanoscale ZnO was shown to be an efficient light absorber. Coatings were characterized in terms of elongation at brake, residual PI
Publikováno v:
The Journal of Physical Chemistry A. 112:5908-5916
Using pulse radiolysis and steady-state gamma-radiolysis techniques, it has been established that, in air-saturated aqueous solutions, peroxyl radicals CH 2HalOO (*) (Hal = halogen) derived from CH 2Cl 2 and CH 2Br 2 react with dimethyl selenide (Me