Nano-sized SnO2: Planar defects or particle shape anisotropy?

IF 5.45 Q1 Physics and Astronomy

Nano-Structures & Nano-Objects Pub Date : 2024-11-02 DOI:10.1016/j.nanoso.2024.101398

D.A. Yatsenko , S.V. Cherepanova , N.A. Sinitsa , E.Yu. Gerasimov , A.A. Sidelnikov , A.A. Matvienko

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.

查看原文本刊更多论文

纳米级二氧化锡：平面缺陷还是颗粒形状各向异性？

利用粉末 X 射线衍射和透射电子显微镜研究了通过氧化热解锡（II）草酸盐 SnC2O4 得到的纳米尺寸氧化锡（IV）颗粒的结构和形态。X 射线衍射图样与锡石 SnO2 相符，但观察到 110 峰有强烈的展宽和高度降低。根据透射电子显微镜数据，推测二氧化锡结构中存在平面缺陷。在 nsutite γ-MnO2 中观察到了这种缺陷，其结构是无序的，代表了焦绿泥石 β-MnO2 和苎麻石 R-MnO2 结构的相互生长。通过计算基于一维无序纳米晶体统计模型的 X 射线衍射图样，首次对二氧化锡结构中的此类缺陷进行了定量评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nano-Structures & Nano-Objects Physics and Astronomy-Condensed Matter Physics

CiteScore

9.20

自引率

0.00%

发文量

审稿时长

22 days

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 .