Výsledky vyhledávání - "M. D. Riktor"

Half-Heusler phase formation and Ni atom distribution in M-Ni-Sn (M = Hf, Ti, Zr) systems

Autor: C. Echevarria-Bonet, M. D. Riktor, Bjørn C. Hauback, Patricia Almeida Carvalho, Magnus H. Sørby, Matylda N. Guzik, Anette Eleonora Gunnæs

Publikováno v: RUO. Repositorio Institucional de la Universidad de Oviedo
instname

High resolution synchrotron radiation powder X-ray diffraction (SR-PXD) and scanning transmission electron microscopy (STEM) have been employed for structural characterization of MNiSn, M0.5M′0.5NiSn and M0.5M′0.25M″0.25NiSn (M, M′, M″ = Hf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28d13ec7fc241751866f107acb89337b
https://doi.org/10.1016/j.actamat.2018.01.019

Zobrazit plný text záznamu

Solubility of transition metal interstitials in proton conducting BaZrO3 and similar perovskite oxides

Autor: Rune Bredesen, Jonathan M. Polfus, Marie-Laure Fontaine, M. D. Riktor, Truls Norby, Annett Thøgersen

Publikováno v: Journal of Materials Chemistry A. 4:8105-8112

The defect chemistry of foreign transition metals in perovskite oxides was investigated by first-principles calculations with focus on Ni and Zn in Y-doped BaZrO3. Additional transition metals (Cu, Fe, Pd, Pt, and Ag) and perovskites (SrZrO3 and SrTi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::02b0d0a669f30334eae3637ce92badcf
https://doi.org/10.1039/c6ta02377k

Zobrazit plný text záznamu

On the rehydrogenation of decomposed Ca(BH4)2

Autor: Magnus H. Sørby, M. D. Riktor, Jiri Muller, Bjørn C. Hauback, Maximilian Fichtner, Elisa Gil Bardají

Publikováno v: Journal of Alloys and Compounds. 632:800-804

Ca(BH 4 ) 2 with 11.6 mass% hydrogen is considered a promising material for hydrogen storage applications due to its high gravimetric and volumetric capacity as well as predicted thermodynamic properties suitable for hydrogen storage purposes. Howeve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::deb7d56fb4a80b525e8a58ede4e2b5f7
https://doi.org/10.1016/j.jallcom.2015.01.243

Zobrazit plný text záznamu

Structure and thermal properties of composites with RE-borohydrides (RE = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Er, Yb or Lu) and LiBH4

Autor: M. D. Riktor, Magnus H. Sørby, Christoph Frommen, Jørn Eirik Olsen, Bjørn C. Hauback, Torben R. Jensen

Publikováno v: Olsen, J E, Frommen, C, Jensen, T R, Riktor, M D, Sørby, M H & Hauback, B C 2014, ' Structure and thermal properties of composites with RE-borohydrides (RE = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Er, Yb or Lu) and LiBH 4 ', R S C Advances, vol. 4, no. 4, pp. 1570-1582 . https://doi.org/10.1039/c3ra44012e

RECl3 (RE = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Er, Yb, Lu) and LiBH4 ball-milled in the molar ratio of 1 : 6 resulted in formation of numerous rare-earth metal (RE) borohydrides and LiCl in mixtures with excess LiBH4. The reaction products were characte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17bf8a62b56b454ac87cef018cf3f3de
https://doi.org/10.1039/c3ra44012e

Zobrazit plný text záznamu

Hindered Rotational Energy Barriers of BH4– Tetrahedra in β-Mg(BH4)2 from Quasielastic Neutron Scattering and DFT Calculations

Autor: J. Kheres, B.C. Hauback, Aline Léon, M. D. Riktor, J. Wuttke, Kim Lefmann, Jon Bergmann Maronsson, Fanni Juranyi, Dadi Þorsteinn Sveinbjörnsson, E. Gil Bardaji, Maximilian Fichtner, Didier Blanchard, Tejs Vegge

Publikováno v: The Journal of Physical Chemistry C. 116:2013-2023

In this work, hindered rotations of the BH4– tetrahedra in Mg(BH4)2 were studied by quasielastic neutron scattering, using two instruments with different energy resolution, in combination with density functional theory (DFT) calculations. Two therm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ed370758bde887be5462d10f6662715
https://doi.org/10.1021/jp208670v

Zobrazit plný text záznamu

Hydride formation in ball-milled and cryomilled Mg–Fe powder mixtures

Autor: Bjørn C. Hauback, M. Herrich, Stefano Deledda, M. D. Riktor, Helmer Fjellvåg, Oliver Gutfleisch

Publikováno v: Materials Science and Engineering: B. 158:19-25

We report on the formation of the ternary hydride Mg 2 FeH 6 in mechanically activated powders. Powder mixtures with nominal composition Mg 67 Fe 33 were ball-milled in an inert Ar atmosphere either at room temperature or at liquid nitrogen temperatu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc9f1e548cb50842a976bf6c4db513f4
https://doi.org/10.1016/j.mseb.2008.12.031

Zobrazit plný text záznamu

Hydrogen storage properties of rare earth (RE) borohydrides (RE = La, Er) in composite mixtures with LiBH4 and LiH

Autor: Magnus H. Sørby, M. D. Riktor, Bjørn C. Hauback, Michael Heere, Christoph Frommen

Publikováno v: Journal of Alloys and Compounds
S155-S159

Mixtures of 6LiBH 4 –RECl 3 –3LiH (RE = La, Er) have been produced by mechanochemical milling and their structure, thermal decomposition and reversibility have been studied. Hydrogen desorption starts around 300 °C in both composites. Heating to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::403b68b71d5c0876558bb76be35dfffe
https://hdl.handle.net/11250/2358044

Zobrazit plný text záznamu

ChemInform Abstract: Structure and Thermal Properties of Composites with RE-Borohydrides (RE: La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Er, Yb or Lu) and LiBH4

Autor: M. D. Riktor, B. C. Hauback, Torben R. Jensen, Magnus H. Soerby, Christoph Frommen, Jørn Eirik Olsen

Publikováno v: ChemInform. 45

Mechanochemical milling of LnCl3 (Ln: La—Tb, Er, Yb, Lu) with LiBH4 in the molar ratio of 1:6 for 5 h and additional annealing at 100 °C for 50 h leads to the new compounds LiLn(BH4)3Cl (Ln: La, Ce, Pr, Nd, Sm, Gd), Ln(BH4)3 (Ln: Sm, Gd, Tb, Er, Y

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4955102d7d630389f68c03b4112cd9cc
https://doi.org/10.1002/chin.201425003

Zobrazit plný text záznamu

The crystal structure of the first borohydride borate, Ca3(BD4)3(BO3)

Autor: M. D. Riktor, Maximilian Fichtner, Magnus H. Sørby, Bjørn C. Hauback, Yaroslav Filinchuk, Ponniah Vajeeston, Helmer Fjellvåg, Elisa Gil Bardají

Publikováno v: Journal of Materials Chemistry. 21:7188

The previously observed intermediate from thermal decomposition of Ca(BH4)2 has been identified as a calcium borohydride borate with composition Ca3(11BD4)3(11BO3), synthesized from a double-isotope substituted sample Ca(11BD4)2. The crystal structur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4f60f161be017e9d816fbb6258f0dff
https://doi.org/10.1039/c1jm00074h

Zobrazit plný text záznamu

The identification of a hitherto unknown intermediate phase CaB2Hx from decomposition of Ca(BH4)2

Autor: Bjørn C. Hauback, M. D. Riktor, Maximilian Fichtner, K. Chłopek, Magnus H. Sørby

Publikováno v: Journal of Materials Chemistry. 19:2754

Ca(BH4)2 is a promising material for hydrogen storage due to its high gravimetric capacity and expected suitable thermodynamic properties. Experimental reports indicate a more complex reaction pathway than the previously proposed route, including for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fe751dbdb68b05f12b8365cae2ba6070
https://doi.org/10.1039/b818127f

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání