New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures

New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures

SnO2@SnS2 multi-core–shell heterostructures were synthesised via chemical conversion of mesoporous raspberry-like SnO2 nanocrystals. In the syntheses, different concentrations of a sulphide precursor (thioacetamide) were applied. The samples were analysed using scanning and high-resolution transmiss...

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Bibliographic Details
Main Authors: Kinga Michalec, Anna Kusior, Andrzej Mikuła, Marta Radecka
Format: Article
Language:English
Published: Taylor & Francis Group 2021-10-01
Series:Materials Research Letters
Subjects:
multi-core–shell
defects
sno2@sns2
Online Access:http://dx.doi.org/10.1080/21663831.2021.1971785
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spelling doaj-d3eb18760fc6420d893af955328044b82021-09-06T14:06:26ZengTaylor & Francis GroupMaterials Research Letters2166-38312021-10-0191044545110.1080/21663831.2021.19717851971785New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructuresKinga Michalec0Anna Kusior1Andrzej Mikuła2Marta Radecka3AGH University of Science and TechnologyAGH University of Science and TechnologyAGH University of Science and TechnologyAGH University of Science and TechnologySnO2@SnS2 multi-core–shell heterostructures were synthesised via chemical conversion of mesoporous raspberry-like SnO2 nanocrystals. In the syntheses, different concentrations of a sulphide precursor (thioacetamide) were applied. The samples were analysed using scanning and high-resolution transmission electron microscopy, X-ray diffraction, Raman spectroscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The results revealed the presence of surface defects (Sn2+, oxygen vacancies) on the raspberry-like surface, which play a crucial role in the chemical conversion reaction. With an increasing amount of thioacetamide, additional redox reactions occurred in the system (Sn4+/Sn2+, S2−/S0). The highest precursor concentration led to the microstructural disintegration and phase composition change.http://dx.doi.org/10.1080/21663831.2021.1971785multi-core–shelldefectssno2@sns2
collection DOAJ
language English
format Article
sources DOAJ
author Kinga Michalec
Anna Kusior
Andrzej Mikuła
Marta Radecka
spellingShingle Kinga Michalec
Anna Kusior
Andrzej Mikuła
Marta Radecka
New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures
Materials Research Letters
multi-core–shell
defects
sno2@sns2
author_facet Kinga Michalec
Anna Kusior
Andrzej Mikuła
Marta Radecka
author_sort Kinga Michalec
title New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures
title_short New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures
title_full New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures
title_fullStr New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures
title_full_unstemmed New insights into the formation of multi-core–shell mesoporous SnO2@SnS2 nanostructures
title_sort new insights into the formation of multi-core–shell mesoporous sno2@sns2 nanostructures
publisher Taylor & Francis Group
series Materials Research Letters
issn 2166-3831
publishDate 2021-10-01
description SnO2@SnS2 multi-core–shell heterostructures were synthesised via chemical conversion of mesoporous raspberry-like SnO2 nanocrystals. In the syntheses, different concentrations of a sulphide precursor (thioacetamide) were applied. The samples were analysed using scanning and high-resolution transmission electron microscopy, X-ray diffraction, Raman spectroscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The results revealed the presence of surface defects (Sn2+, oxygen vacancies) on the raspberry-like surface, which play a crucial role in the chemical conversion reaction. With an increasing amount of thioacetamide, additional redox reactions occurred in the system (Sn4+/Sn2+, S2−/S0). The highest precursor concentration led to the microstructural disintegration and phase composition change.
topic multi-core–shell
defects
sno2@sns2
url http://dx.doi.org/10.1080/21663831.2021.1971785
work_keys_str_mv AT kingamichalec newinsightsintotheformationofmulticoreshellmesoporoussno2sns2nanostructures
AT annakusior newinsightsintotheformationofmulticoreshellmesoporoussno2sns2nanostructures
AT andrzejmikuła newinsightsintotheformationofmulticoreshellmesoporoussno2sns2nanostructures
AT martaradecka newinsightsintotheformationofmulticoreshellmesoporoussno2sns2nanostructures
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