SnO2 nanorods and hollow spheres: Controlled synthesis and gas sensing properties

被引：118

作者：

Xu Jiaqiang ^{[1
,2
]}

Wang Ding ^{[1
]}

Qin Lipeng ^{[1
]}

Yu Weijun ^{[3
]}

Pan Qingyi ^{[1
]}

机构：

[1] Shanghai Univ, Dept Chem, Coll Sci, Shanghai 200444, Peoples R China

[2] Chinese Acad Sci, State Key Lab Transducer Technol, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China

[3] Shanghai Univ, Instrumental Anal & Res Ctr, Shanghai 200444, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2009年 / 137卷 / 02期

关键词：

SnO2; Solvothermal; Controlled synthesis; Gas sensing properties; LARGE-SCALE; TIN OXIDE; SOLUTION-PHASE; NANOWIRES; GROWTH; NANOCRYSTALS; SENSORS; METAL; NANOSTRUCTURES; NANOPARTICLES;

D O I：

10.1016/j.snb.2009.01.011

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, a controlled synthesis of rod and hollow sphere SnO2 nanostructures has been realized via a solvothermal reaction, without employing any other toxic organic solvents. The well-defined morphologies are obtained by simply adding sodium hydroxide to aqueous ethanol solution. The products are characterized by XRD, TEM and SEM. Growth mechanisms for these two nanostructures were proposed. Gas sensors were fabricated and an investigation into the structure-based gas-sensing properties has been conducted. Compared with SnO2 hollow spheres, the nanorods display much better gas sensing properties, which is mainly due to their facile electrons transportation and excellent thermal stability. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：490 / 495

页数：6

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