High-efficient microwave synthesis and characterisation of SrSnO3

Author(s)

Bohnemann, Joerg ^{[1, 2]} ; Libanori, Rafael ^[1] ; Moreira, Mario L. ^[1] ; Longo, Elson ^[3]

Affiliation

^[1] Univ Fed Sao Carlos, LIEC, BR-13565905 Sao Carlos, SP - Brazil

^[2] Univ Munster, Dept Chem, D-48149 Munster - Germany

^[3] Univ Estadual Paulista, Inst Quim, LIEC, BR-14800900 Araraquara, SP - Brazil

• Document type: Journal article
• Source: CHEMICAL ENGINEERING JOURNAL; v. 155, n. 3, p. 905-909, DEC 15 2009.
• Web of Science Citations: 26

Abstract

Strontium stannate (SrSnO(3)) nanostructures were obtained by microwave- assisted calcination of a SrSn(OH)(6) precursor powder. Compared to other conventional calcination methods mentioned in the literature, this procedure led to a remarkable decrease of the reaction time and the synthesis temperature owing to direct interaction of radiation with the material. X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and photoluminescence measurements were performed. A comparison of the characterisation results obtained by microwave and conventional methods was conducted, and differences concerning the properties of conventionally high-temperature calcined SrSnO(3) from that obtained by microwave-assisted calcination were observed. Furthermore, two different morphologies (nanosticks and nanobrushes) were obtained by a variation of the concentration of the reactants. (C) 2009 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 98/14324-0 - Multidisciplinary Center for Development of Ceramic Materials
• Grantee: Elson Longo da Silva
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC