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Main Title: Commensurate Nb2Zr5O15: Accessible Within the Field Nb2ZrxO2x+5 After All
Author(s): Wiedemann, Dennis
Orthmann, Steven
Mühlbauer, Martin J.
Lerch, Martin
Type: Article
Language Code: en
Abstract: Doped niobium zirconium oxides are applied in field-effect transistors and as special-purpose coatings. Whereas their material properties are sufficiently known, their crystal structures remain widely uncharacterized. Herein, we report on the comparably mild sol–gel synthesis of Nb2Zr5O15 and the elucidation of its commensurately modulated structure via neutron diffraction. We describe the structure using the most appropriate superspace as well as the convenient supercell approach. It is part of an α-PbO2-homeotypic field with the formula Nb2ZrxO2x+5, which has previously been reported only for x ≥ 5.1, and is closely related to the structure of Hf3Ta2O11. The results, supported by X-ray diffraction and additional synthesis experiments, are contextualized within the existing literature. Via the sol–gel route, metastable Nb–Zr–O compounds and their heavier congeners are accessible that shed light on possible structures of these commercially utilized materials.
Issue Date: 4-Apr-2019
Date Available: 5-Apr-2019
DDC Class: 546 Anorganische Chemie
548 Kristallografie
Subject(s): neutron diffraction
sol-gel processes
X-ray diffraction
Sponsor/Funder: DFG, 198634447, SPP 1613: Regenerativ erzeugte Brennstoffe durch lichtgetriebene Wasserspaltung: Aufklärung der Elementarprozesse und Umsetzungsperspektiven auf technologische Konzepte
Journal Title: ChemistryOpen
Publisher: Wiley-VCH
Publisher Place: Weinheim
Volume: 8
Issue: 4
Publisher DOI: 10.1002/open.201900043
Page Start: 447
Page End: 450
EISSN: 2191-1363
ISSN: 2191-1355
Appears in Collections:FG Anorganische Chemie - Festkörper- und Materialchemie » Publications

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