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Multi-stoichiometric quasi-two-dimensional WnO3n-1 tungsten oxides.
Nanoscale ( IF 5.8 ) Pub Date : 2020-06-22 , DOI: 10.1039/d0nr02014a
Luka Pirker 1 , Bojana Višić 2 , Srečo D Škapin 3 , Goran DraŽić 4 , Janez Kovač 1 , Maja Remškar 1
Affiliation  

Quasi-two-dimensional tungsten oxide structures, which nucleate by epitaxial growth on W19O55 nanowires (NW) and grow as thin platelets, were identified. Both the nanowires and the platelets accommodate oxygen deficiency by the formation of crystallographic shear planes. Stoichiometric phases, W18O53 (WO2.944), W17O50 (WO2.941), W16O47 (WO2.938), W15O44 (WO2.933), W14O41 (WO2.929), W10O29 (WO2.9), and W9O26 (WO2.889), syntactically grow inside a single platelet. These layered crystals show a new kind of polycrystallinity, where crystallographic shear planes accommodate oxygen deficiency and at the same time stabilize this multi-stoichiometric structure.

中文翻译:

多化学计量准二维WnO3n-1氧化钨。

确定了准二维氧化钨结构,该结构通过在W 19 O 55纳米线(NW)上外延生长而成核并以薄血小板的形式生长。纳米线和血小板都通过形成晶体学剪切平面来适应缺氧。化学计量相,W 18 O 53(WO 2.944),W 17 O 50(WO 2.941),W 16 O 47(WO 2.938),W 15 O 44(WO 2.933),W 14 O 41(WO 2.929),W 10O 29(WO 2.9)和W 9 O 26(WO 2.889)在单个血小板内句法生长。这些层状晶体显示出一种新的多晶性,其中晶体学的剪切平面可以弥补氧的缺乏,同时稳定了这种多化学计量的结构。
更新日期:2020-07-23
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