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Lithium containing layered high entropy oxide structures

Wang, Junbo ; Cui, Yanyan ; Wang, Qingsong ; Wang, Kai ; Huang, Xiaohui ; Stenzel, David ; Sarkar, Abhishek ; Azmi, Raheleh ; Bergfeldt, Thomas ; Bhattacharya, Subramshu S. ; Kruk, Robert ; Hahn, Horst ; Schweidler, Simon ; Brezesinski, Torsten ; Breitung, Ben (2020)
Lithium containing layered high entropy oxide structures.
In: Scientific Reports, 10 (1)
doi: 10.1038/s41598-020-75134-1
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Layered Delafossite-type Liₓ(M₁M₂M₃M₄M₅…Mₙ)O₂ materials, a new class of high-entropy oxides, were synthesized by nebulized spray pyrolysis and subsequent high-temperature annealing. Various metal species (M = Ni, Co, Mn, Al, Fe, Zn, Cr, Ti, Zr, Cu) could be incorporated into this structure type, and in most cases, single-phase oxides were obtained. Delafossite structures are well known and the related materials are used in different fields of application, especially in electrochemical energy storage (e.g., LiNiₓCoyMnzO₂ [NCM]). The transfer of the high-entropy concept to this type of materials and the successful structural replication enabled the preparation of novel compounds with unprecedented properties. Here, we report on the characterization of a series of Delafossite-type high-entropy oxides by means of TEM, SEM, XPS, ICP-OES, Mössbauer spectroscopy, XRD including Rietveld refinement analysis, SAED and STEM mapping and discuss about the role of entropy stabilization. Our experimental data indicate the formation of uniform solid-solution structures with some Li/M mixing.

Typ des Eintrags: Artikel
Erschienen: 2020
Autor(en): Wang, Junbo ; Cui, Yanyan ; Wang, Qingsong ; Wang, Kai ; Huang, Xiaohui ; Stenzel, David ; Sarkar, Abhishek ; Azmi, Raheleh ; Bergfeldt, Thomas ; Bhattacharya, Subramshu S. ; Kruk, Robert ; Hahn, Horst ; Schweidler, Simon ; Brezesinski, Torsten ; Breitung, Ben
Art des Eintrags: Bibliographie
Titel: Lithium containing layered high entropy oxide structures
Sprache: Englisch
Publikationsjahr: 28 Oktober 2020
Ort: London
Verlag: Springer Nature
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Scientific Reports
Jahrgang/Volume einer Zeitschrift: 10
(Heft-)Nummer: 1
Kollation: 13 Seiten
DOI: 10.1038/s41598-020-75134-1
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Kurzbeschreibung (Abstract):

Layered Delafossite-type Liₓ(M₁M₂M₃M₄M₅…Mₙ)O₂ materials, a new class of high-entropy oxides, were synthesized by nebulized spray pyrolysis and subsequent high-temperature annealing. Various metal species (M = Ni, Co, Mn, Al, Fe, Zn, Cr, Ti, Zr, Cu) could be incorporated into this structure type, and in most cases, single-phase oxides were obtained. Delafossite structures are well known and the related materials are used in different fields of application, especially in electrochemical energy storage (e.g., LiNiₓCoyMnzO₂ [NCM]). The transfer of the high-entropy concept to this type of materials and the successful structural replication enabled the preparation of novel compounds with unprecedented properties. Here, we report on the characterization of a series of Delafossite-type high-entropy oxides by means of TEM, SEM, XPS, ICP-OES, Mössbauer spectroscopy, XRD including Rietveld refinement analysis, SAED and STEM mapping and discuss about the role of entropy stabilization. Our experimental data indicate the formation of uniform solid-solution structures with some Li/M mixing.

Freie Schlagworte: Chemistry, Energy science and technology, Materials science, Nanoscience and technology, Physics
ID-Nummer: Artikel-ID: 18430
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 540 Chemie
600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Elektronenmikroskopie
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Mechanik Funktionaler Materialien
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien
Hinterlegungsdatum: 26 Sep 2024 07:34
Letzte Änderung: 26 Sep 2024 07:34
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