Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Eberhard Burkel"'
Autor:
Valentin G. Bessergenev, José F. Mariano, Maria Conceição Mateus, João P. Lourenço, Adwaa Ahmed, Martin Hantusch, Eberhard Burkel, Ana Maria Botelho do Rego
Publikováno v:
Nanomaterials, Vol 11, Iss 10, p 2519 (2021)
Dielectric properties and spectral dependence of the photocatalytic constant of Co doped P25 Degussa powder were studied. Doping of TiO2 matrix with cobalt was achieved by precipitation method using of Tris(diethylditiocarbamate)Co(III) precursor (Co
Externí odkaz:
https://doaj.org/article/bf0d9e8d14d4448f816ac2d8eaf89b23
Autor:
Abdullah Riaz, Kerstin Witte, Wiktor Bodnar, Hermann Seitz, Norbert Schell, Armin Springer, Eberhard Burkel
Publikováno v:
Materials, Vol 14, Iss 6, p 1495 (2021)
CaTiO3 is a promising candidate as a pseudo-piezoelectric scaffold material for bone implantation. In this study, pure and magnesium/iron doped CaTiO3 are synthesized by sol-gel method and spark plasma sintering. Energy dispersive X-ray mapping confi
Externí odkaz:
https://doaj.org/article/098c33b6a1554b2cb8d138002f4d0bff
Publikováno v:
Scripta Materialia. 188:274-278
Calcium titanate has an orthorhombic crystal structure and should not exhibit piezoelectric behavior. However, in the present study such behavior is observed in nanostructured calcium titanate prepared by sol–gel synthesis and field assisted sinter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81c9065d6de66ab36be101a7db15b001
https://doi.org/10.1016/j.scriptamat.2020.07.043
https://doi.org/10.1016/j.scriptamat.2020.07.043
Autor:
V G Bessergenev, M.C. Mateus, João P. Lourenço, Ana M. Botelho do Rego, Eberhard Burkel, Adwaa Ahmed, Martin Hantusch, José F.M.L. Mariano
Publikováno v:
Nanomaterials, Vol 11, Iss 2519, p 2519 (2021)
Nanomaterials
Volume 11
Issue 10
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Nanomaterials
Volume 11
Issue 10
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Dielectric properties and spectral dependence of the photocatalytic constant of Co doped P25 Degussa powder were studied. Doping of TiO2 matrix with cobalt was achieved by precipitation method using of Tris(diethylditiocarbamate)Co(III) precursor (Co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::314fec699878612baa15e1f35c9f9ad8
https://www.mdpi.com/2079-4991/11/10/2519
https://www.mdpi.com/2079-4991/11/10/2519
Publikováno v:
In New Carbon Materials 2010 25(4):241-247
Autor:
Eberhard Burkel, Marcel Wetegrove, Kerstin Witte, Fritz Westphal, Armin Springer, Dan-Eric Pfahl, Wiktor Bodnar, Norbert Schell
Publikováno v:
CrystEngComm. 21:1956-1966
This study investigates a thermal synthesis in which iron(II) and iron(III) chlorides are used to form maghemite nanoflowers in the presence of sodium hydroxide and a solvent mixture of N-methyldiethanolamine and diethylene glycol. The agglomeration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4dfd50f6eb2c64bac9f8c7f996c55d3
https://doi.org/10.1039/c8ce02115e
https://doi.org/10.1039/c8ce02115e
Autor:
José F.M.L. Mariano, Martin Hantusch, Ana M. Botelho do Rego, Milan Timko, Peter Kopčanský, Valentim G. Bessergenev, Eberhard Burkel, João P. Lourenço, M. Rajňák
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Journal of Magnetism and Magnetic Materials
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Journal of Magnetism and Magnetic Materials
The present work reports on the structural and magnetic properties of TiO2 P25 Degussa powder doped with cobalt. Dissolution of cobalt in TiO2 matrix was achieved by precipitation of tris(diethyldithiocarbamato) cobalt (III) (CoDtc - Co[S2CN(C2H5)(2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04e353b862b4ae8fe96e1b84fac95188
Publikováno v:
Catalysis Today. 307:111-118
The defect structures of photocatalytic improved Degussa P25 powder were evaluated by X-ray photoelectron spectroscopy (XPS), paramagnetic resonance spectroscopy (EPR) and in situ studies of the electrical resistivity in order to understand the charg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfdf305eafc827ae3f9c5595f666aee3
https://doi.org/10.1016/j.cattod.2017.11.005
https://doi.org/10.1016/j.cattod.2017.11.005
Publikováno v:
Witte, K.; Bodnar, W.; Schell, N.; Fulda, G.; Burkel, E.: Phase transformations of stoichiometric mixtures of hematite and iron under FAST conditions. In: Journal of Alloys and Compounds. Vol. 724 (2017) 728-734. (DOI: 10.1016/j.jallcom.2017.07.089)
Since the mechanism of the synthesis of magnetite from a stoichiometric mixture of hematite and iron is still under debate, systematic studies of the phase transformations in such powder mixture processed under field assisted sintering conditions, ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca32a314325a435ceae408ef4fc414c0
https://doi.org/10.1016/j.jallcom.2017.07.089
https://doi.org/10.1016/j.jallcom.2017.07.089
Publikováno v:
Experimental and Theoretical NANOTECHNOLOGY. :145-159
We report the processing of single walled carbon nanotubes (SWCNTs) reinforced TiNi intermetallic matrix nanocomposites from Ti/Ni and SWCNTs powders using spark plasma sintering (SPS) at temperatures from 1000 °C to 1200 °C. The SWCNTs are doped i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db2f0adb40b972beb79631b7438a073a
https://doi.org/10.56053/1.3.145
https://doi.org/10.56053/1.3.145