{"title":"Nano-sized SnO2: Planar defects or particle shape anisotropy?","authors":"D.A. Yatsenko , S.V. Cherepanova , N.A. Sinitsa , E.Yu. Gerasimov , A.A. Sidelnikov , A.A. Matvienko","doi":"10.1016/j.nanoso.2024.101398","DOIUrl":null,"url":null,"abstract":"<div><div>Structure and morphology of nano-sized particles of tin(IV) oxide obtained by oxidative thermolysis of tin(II) oxalate SnC<sub>2</sub>O<sub>4</sub> were studied by powder X-ray diffraction and transmission electron microscopy. The X-ray diffraction pattern corresponds to cassiterite SnO<sub>2</sub>; however, a strong broadening and a decrease in height of 110 peak are observed. Based on transmission electron microscopy data, it was assumed that planar defects are present in the SnO<sub>2</sub> structure. Such defects are observed in nsutite γ-MnO<sub>2</sub>, the structure of which is disordered and represents an intergrowth of pyrolusite β-MnO<sub>2</sub> and ramsdellite R-MnO<sub>2</sub> structures. For the first time, a quantitative assessment of such defects in the SnO<sub>2</sub> structure was carried out by calculating X-ray diffraction patterns based on statistical models of 1D disordered nanocrystals.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101398"},"PeriodicalIF":5.4500,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano-Structures & Nano-Objects","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352507X2400310X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 0
Abstract
Structure and morphology of nano-sized particles of tin(IV) oxide obtained by oxidative thermolysis of tin(II) oxalate SnC2O4 were studied by powder X-ray diffraction and transmission electron microscopy. The X-ray diffraction pattern corresponds to cassiterite SnO2; however, a strong broadening and a decrease in height of 110 peak are observed. Based on transmission electron microscopy data, it was assumed that planar defects are present in the SnO2 structure. Such defects are observed in nsutite γ-MnO2, the structure of which is disordered and represents an intergrowth of pyrolusite β-MnO2 and ramsdellite R-MnO2 structures. For the first time, a quantitative assessment of such defects in the SnO2 structure was carried out by calculating X-ray diffraction patterns based on statistical models of 1D disordered nanocrystals.
期刊介绍：
Nano-Structures & Nano-Objects is a new journal devoted to all aspects of the synthesis and the properties of this new flourishing domain. The journal is devoted to novel architectures at the nano-level with an emphasis on new synthesis and characterization methods. The journal is focused on the objects rather than on their applications. However, the research for new applications of original nano-structures & nano-objects in various fields such as nano-electronics, energy conversion, catalysis, drug delivery and nano-medicine is also welcome. The scope of Nano-Structures & Nano-Objects involves: -Metal and alloy nanoparticles with complex nanostructures such as shape control, core-shell and dumbells -Oxide nanoparticles and nanostructures, with complex oxide/metal, oxide/surface and oxide /organic interfaces -Inorganic semi-conducting nanoparticles (quantum dots) with an emphasis on new phases, structures, shapes and complexity -Nanostructures involving molecular inorganic species such as nanoparticles of coordination compounds, molecular magnets, spin transition nanoparticles etc. or organic nano-objects, in particular for molecular electronics -Nanostructured materials such as nano-MOFs and nano-zeolites -Hetero-junctions between molecules and nano-objects, between different nano-objects & nanostructures or between nano-objects & nanostructures and surfaces -Methods of characterization specific of the nano size or adapted for the nano size such as X-ray and neutron scattering, light scattering, NMR, Raman, Plasmonics, near field microscopies, various TEM and SEM techniques, magnetic studies, etc .
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