High-efficient microwave synthesis and characterisation of SrSnO3

被引：47

作者：

Bohnemann, Joerg ^{[1
,2
]}

Libanori, Rafael ^{[1
]}

Moreira, Mario L. ^{[1
]}

Longo, Elson ^{[3
]}

机构：

[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

来源：

CHEMICAL ENGINEERING JOURNAL | 2009年 / 155卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

SrSnO3; Microwave; Nanostructures; Photoluminescence; PHOTOCATALYTIC PROPERTIES; CERAMIC POWDERS; PHOTOLUMINESCENCE; TEMPERATURE; BASNO3; PEROVSKITE; BEHAVIOR; ENERGY; TIN;

D O I：

10.1016/j.cej.2009.09.004

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：905 / 909

页数：5