Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Roberto Köferstein"'
Autor:
Zehra Durmus, Roberto Köferstein, Titus Lindenberg, Florian Lehmann, Dariush Hinderberger, A. Wouter Maijenburg
In this study, unique hybrid structures were constructed between a Ce-based metal-organic framework (Ce-MOF) and graphitic carbon nitride (g-C3N4) materials. In addition, the g-C3N4 materials used for these heterostructures were prepared by five diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f75a12a03d43330fc6e1ca326e516855
https://zenodo.org/record/8016783
https://zenodo.org/record/8016783
Autor:
Roberto Köferstein
Nano-crystalline Sr0.5Ba0.5Nb2O6 powders with addition of LiNbO3 or LiF as sintering additives were prepared bya soft-chemistry synthesis using polyethylene glycol. Calcination at 600 ?C results in nanocrystalline powders(dcryst. ? 30 nm) which were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2119c5cc32dea8f704dc831453723432
https://doi.org/10.31219/osf.io/j94y3
https://doi.org/10.31219/osf.io/j94y3
Publikováno v:
Materials Chemistry and Physics
Materials Chemistry and Physics, Elsevier, 2022, 278, pp.125616. ⟨10.1016/j.matchemph10.1016/j.matchemphys.2021.125616ys.2021.125616⟩
Materials Chemistry and Physics, Elsevier, 2022, 278, pp.125616. ⟨10.1016/j.matchemph10.1016/j.matchemphys.2021.125616ys.2021.125616⟩
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f8fdff692f29b1dd091380f8254d901
https://hal.archives-ouvertes.fr/hal-03502572
https://hal.archives-ouvertes.fr/hal-03502572
Autor:
Roberto Köferstein
Magnetoelectric (Sr0.5Ba0.5Nb2O6)1x(CoFe2O4)x (x = 0.2–0.6) composites were prepared by a one-pot softchemistry synthesis using PEG400. Calcining at 700 ◦C resulted in nanocrystalline composite powders (dcryst. = 24–30 nm) which were si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae553e9f7bdbe1b0d962f1008bce3735
https://zenodo.org/record/5804574
https://zenodo.org/record/5804574
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 645:912-918
Autor:
Roberto Köferstein
Publikováno v:
Journal of Solid State Chemistry
Journal of Solid State Chemistry, Elsevier, 2020, Journal of Solid State Chemistry, 287, pp.121380. ⟨10.1016/j.jssc.2020.121380⟩
Journal of Solid State Chemistry, Elsevier, 2020, Journal of Solid State Chemistry, 287, pp.121380. ⟨10.1016/j.jssc.2020.121380⟩
Nanocrystalline Li0.5Fe2.5O4 was prepared by a starch-based soft-chemistry synthesis. Calcining of the (LiFe)-gel between 350 and 1000 °C results in Li0.5Fe2.5O4 powders with crystallite sizes from 13 to 141 nm and specific surface areas between 35
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9370ee11f2c5b0a328734573e3b15911
https://hal.archives-ouvertes.fr/hal-02667636/document
https://hal.archives-ouvertes.fr/hal-02667636/document
Autor:
Roberto Köferstein
Two bis(oxalato)cuprate(II) hybrid salts, (C5H7N2)2[Cu(C2O4)2]·2H2O (1) and (C7H11N2)2[Cu(C2O4)2]·5H2O (2) (C5H7N2 = 3-aminopyridinium; C7H11N2 = 2-amino-4,6- dimethylpyridinium) have been synthesized and characterized by elemental and thermal anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8bd814f1c756be18baac0518aa4d968
https://zenodo.org/record/3693063
https://zenodo.org/record/3693063
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 644:205-214
Blue single crystals of Cu[μ3-O3P(CH2)2COOH]*2H2O (1) and Cu[(RS)-μ3-O3PCH(C2H5)COOH]*3H2O (2) have been prepared in aqueous Cu2+-solutions (pH = 2.5–3.5) containing 3-phosphonopropionic acid (1) and (RS)-2-phosphonobutyric acid (2), respectively
Autor:
Tobias Flath, Hans Uhlig, Dzmitry Kuzmenka, Dirk Enke, Michaela Schulz-Siegmund, Stephan Hendrikx, Roberto Köferstein, F. Peter Schulze, Michael C. Hacker
Publikováno v:
Journal of Sol-Gel Science and Technology. 83:143-154
We employed indirect rapid prototyping templating to fabricate bioactive and macroporous scaffolds for bone regeneration. This templating technique utilizes lost molds made of polycaprolactone by fused deposition modeling, in which the organic/ inorg
Publikováno v:
Journal of the European Ceramic Society. 37:1509-1516
A facile method to prepare nanoscaled BaFe 0.5 Nb 0.5 O 3 via synthesis in boiling NaOH solution is described herein. The nano-crystalline powder has a high specific surface area of 55 m 2 g −1 and a crystallite size of 15 nm. The as-prepared powde