Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Assefa Sergawie"'
Publikováno v:
International Journal of Biomaterials, Vol 2023 (2023)
Heavy metals that are present in surface water and wastewater are becoming a severe environmental problem. Because of its toxicity, heavy metal removal has become the main priority for environmental concerns. Banana peels are low-cost agricultural wa
Externí odkaz:
https://doaj.org/article/8eca9b207963469082053a81dbdab71c
Autor:
Yosef Bayeh, Nithin Suryadevara, Sören Schlittenhardt, Róbert Gyepes, Assefa Sergawie, Peter Hrobárik, Wolfgang Linert, Mario Ruben, Madhu Thomas
Publikováno v:
Inorganics, Vol 10, Iss 7, p 98 (2022)
Iron(II)-Schiff base complexes are a well-studied class of spin-crossover (SCO) active species due to their ability to interconvert between a paramagnetic high spin-state (HS, S = 2, 5T2) and a diamagnetic low spin-state (LS, S = 0, 1A1) by external
Externí odkaz:
https://doaj.org/article/94098eeaea3f460a9678f583e63d14d9
Autor:
Mamo Gebrezgiabher, Sören Schlittenhardt, Cyril Rajnák, Assefa Sergawie, Mario Ruben, Madhu Thomas, Roman Boča
Publikováno v:
Inorganics, Vol 10, Iss 5, p 66 (2022)
A tetranuclear dysprosium Schiff base complex was isolated by reacting dysprosium chloride with 2-hydroxy-3-methoxybenzaldehyde and 2-(aminomethyl)pyridine in-situ under basic conditions. The isolated Dy(III) complex was characterized by elemental an
Externí odkaz:
https://doaj.org/article/4acdcf9c7b9d4bb4b55cd932bb8efa93
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 21, Iss 2, Pp 281-290 (2007)
A solid-state photoelectrochemical cell based on polymer-sensitized nanocrystalline titanium dioxide (nc-TiO2) was constructed and studied for its photoresponse behavior. Poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and Poly[o
Externí odkaz:
https://doaj.org/article/ad0a1eb750874e9faac8b4447aafd9de
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 21, Iss 3, Pp 405-417 (2007)
Poly[3-(2',5'-diheptyloxyphenyl)thiophene], PDHOPT, has been prepared electrochemically from its monomer for solar cell application. PDHOPT exhibits a band gap of 2.1 eV. The redox properties of PDHOPT were characterized using cyclic voltammetry. The
Externí odkaz:
https://doaj.org/article/0844fa9cdf3a441a97661d686bfb1330
Publikováno v:
Chemistry Africa. 6:667-682
Autor:
Mamo Gebrezgiabher, Sören Schlittenhardt, Cyril Rajnák, Juraj Kuchár, Assefa Sergawie, Juraj Černák, Mario Ruben, Madhu Thomas, Roman Boča
Publikováno v:
New Journal of Chemistry. 46:16702-16707
A dinuclear dysprosium(iii) complex [Dy2(NO3)3(L)3]·nCH3OH (n = 1.20; HL = (2-[(2-hydroxy-propylimino)methyl]phenol)) (1) was isolated when dysprosium nitrate reacted with a solution of salicylaldehyde and 1-amino-2-propanol in a basic medium under
Autor:
Mamo Gebrezgiabher, Sören Schlittenhardt, Cyril Rajnák, Juraj Kuchár, Assefa Sergawie, Juraj Černák, Mario Ruben, Madhu Thomas, Roman Boča
Publikováno v:
RSC Advances. 12:21674-21680
The triangulo-{Er3} complex [Er3Cl(o-van)3(OH)2(H2O)5]Cl3·nH2O (n = 9.4; H(o-van) = o-vanillin) (1) was generated by an in situ method.
Autor:
Madhu Thomas, Yosef Bayeh, Patrik Osuský, Robert Gyepes, Nathan J. Yutronkie, Assefa Sergawie, Peter Hrobárik, Rodolphe Clérac
Publikováno v:
SSRN Electronic Journal.
Autor:
Yosef Bayeh, Patrik Osuský, Nathan J. Yutronkie, Róbert Gyepes, Assefa Sergawie, Peter Hrobárik, Rodolphe Clérac, Madhu Thomas
Publikováno v:
Polyhedron. 227:116136