Zeitschriftenaufsätze und Buchbeiträge

Monastyrov, Mykola; Prikhna, Tatiana; Halbedel, Bernd; Kochetov, Gennadiy; Marquis, Fernand D.S.; Mamalis, Athanasios G.; Prysiazhna, Olena
Electroerosion dispersion, sorption and coagulation for complex water purification: electroerosion waste recycling and manufacturing of metal, oxide and alloy nanopowders. - In: Nanotechnology perceptions, ISSN 2235-2074, Bd. 15 (2019), 1, S. 48-57

The application of EEDSC - electroerosion dispersion, sorption and coagulation (using in situ dispersion in plasma of aluminium or iron) - allowed efficient water purification from heavy metal ions and radioactive alkali ions (of Fe, Cr, Cu, Mo, Zn, Co, Ni, Cd, Mn, As, Sn, Pb, Al, Ba, Co, Cs and Sr) as well as from organic contamination. Intensive ozonization should be applied because of intensive foam formation as a result of complex electrohydrodynamic effects during removal of the "heavy" organic contaminants (such as from liquid waste from landfills) during EEDSC. The method of electroerosion dispersion is very effective for the production of nano and submicron powders (5 nm-3 [my]m) of metals, oxides, nitrides and carbides as well as for recycling of any conductive materials such as cemented carbides, alloys of heavy metals, metallic waste products etc. The iron oxide polyvalent magnetic nanoparticles produced by electroerosion dispersion attract considerable interest in many fields of research and application. They have high potential for applications in the field of biomedical sciences (diagnostics and therapy), ferrofluids, catalysis, coloured pigments, high-density magnetic recording, printer toners, Li-ion batteries, wastewater treatment and absorption of electromagnetic waves.

Dennstädt, Florian;
Optimierung der galvanischen Abscheidung von funktionellen Nickelschichten. - In: ZVO-Report, (2019), 2, S. 46

Zekri, Mohamed; Herrmann, Andreas; Turki, Rim; Rüssel, Christian; Maâlej, Ramzi; Damak, Kamel
Experimental and theoretical studies of Dy3+ doped alkaline earth aluminosilicate glasses. - In: Journal of luminescence, ISSN 0022-2313, Bd. 212 (2019), S. 354-360

https://doi.org/10.1016/j.jlumin.2019.04.041

Herrmann, Andreas; Friedrich, Daniel; Zscheckel, Tilman; Rüssel, Christian
Luminescence properties of Sm3+ doped alkali/earth alkali orthoborates of the type XZBO3 with X = Li, Na, Cs and Z = Ca, Sr, Ba. - In: Journal of luminescence, ISSN 0022-2313, Bd. 214 (2019), 116550, S. 1-7

Two series of Sm3+ doped alkali/alkaline earth borates of the stoichiometric composition XZBO3 were produced by solid state reaction: one series with constant Z=Ca and varied X=Li, Na, Cs, and one with constant X=Na and varied Z=Ca, Sr, Ba. The compounds have very different crystal structures. Nonetheless the emission spectra show a systematic increase in the ratios of the emission peaks at around 645 and 600 nm for compositions with ligands of larger ionic radii such as e.g. Ba2+ or Cs+ resulting in a red shift of the emitted light. The highest red emission was found for Sm3+:NaBaBO3. Here the Sm3+ emission peak at 645 nm is atypically the most intense. The intensity increase of the red emission peak at around 645 nm is discussed in detail with respect to the specific crystal structures and potential crystallographic positions of the Sm3+ ions. The excitation spectra show that the red emission can be excited at around 400 nm or in a relatively broad range between 460 and 500 nm in the blue spectral region.

https://doi.org/10.1016/j.jlumin.2019.116550

Herrmann, Andreas; Völksch, Günter; Ehrt, Doris
Tb3+ as probe ion-clustering and phase separation in borate and borosilicate glasses. - In: International journal of applied glass science, ISSN 2041-1294, Bd. 10 (2019), 4, S. 532-545
Im Titel ist "3+" hochgestellt

https://doi.org/10.1111/ijag.13209