High-efficient microwave synthesis and characterisation of SrSnO3

作者：Bohnemann Joerg; Libanori Rafael; Moreira Mario L^*; Longo Elson

来源：Chemical Engineering Journal, 2009, 155(3): 905-909.

DOI：10.1016/j.cej.2009.09.004

• SrSnO3
• Microwave
• Nanostructures
• Photoluminescence

Strontium stannate (SrSnO3) 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 SrSnO3 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.

• 出版日期2009-12-15