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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Structural characterization of SnO nanoparticles synthesized by the hydrothermal and microwave routes

Full text
Author(s):
Dias, J. S. [1] ; Batista, F. R. M. [1] ; Bacani, R. [1] ; Triboni, E. R. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo EEL USP, Escola Engn Lorena, Lab Nanotechnol & Proc Engn NEP, BR-12602810 Lorena, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 10, n. 1 JUN 10 2020.
Web of Science Citations: 0
Abstract

SnO particles were synthesized by an alkali-assisted hydrothermal and microwave methods. The aqueous-based reactions were carried out at pH similar to 8, under inert atmosphere (Ar). The reactions were taken under different times, and a full XRD structural analysis was made to evaluate the conversion from the Sn6O4(OH)(4) intermediate to SnO particles. Williamson-Hall analysis showed that the size and strain of the SnO particles were time and route treatment dependent. Microwave heating yielded a single tetragonal SnO phase after 1h of thermal treatment, and TEM images revealed spherical-shaped SnO nanoparticles with an average size of 9(1) nm. While by the hydrothermal treatment single SnO phase was obtained only after 4hours, yielding non-uniform and elongated particles with sub-micrometric size. A dissolution-recrystallization process was taken into account as the mechanism for SnO particles formation, in which hydroxylated complexes, Sn-2(OH)(6)(-2), then condense to form the oxide. The time-shorting reaction provided by the microwave-assisted synthesis may be attributed to better heat distribution. (AU)

FAPESP's process: 17/13839-0 - Organic and inorganic systems for obtaining of meso and nanostructures
Grantee:Eduardo Rezende Triboni
Support Opportunities: Regular Research Grants
FAPESP's process: 13/08166-5 - Interfacial chemistry: drugs, peptides and ezymes interactions with membrane models
Grantee:Iolanda Midea Cuccovia
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 16/17708-4 - Microwave tin oxide (II) synthesis
Grantee:Juliana da Silva Dias
Support Opportunities: Scholarships in Brazil - Scientific Initiation