Monodisperse hematite porous nanospheres: synthesis, characterization, and applications for gas sensors

被引：139

作者：

Gou, Xinglong ^{[1
,2
]}

Wang, Guoxiu ^{[1
]}

Park, Jinsoo ^{[1
]}

Liu, Hao ^{[1
]}

Yang, Juan ^{[1
]}

机构：

[1] Univ Wollongong, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2522, Australia

[2] China W Normal Univ, Sch Chem & Chem Engn, Nanchong 637002, Peoples R China

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 12期

关键词：

D O I：

10.1088/0957-4484/19/12/125606

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Monodisperse alpha-Fe(2)O(3) porous nanospheres with uniform shape and size have been synthesized via a facile template-free route. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), and Raman spectroscopy were employed to characterize the product, showing the high quality of the as-prepared alpha-Fe(2)O(3) porous nanospheres. Furthermore, the alpha-Fe(2)O(3) porous nanospheres can selectively detect ethanol, formaldehyde and acetic acid, with a rapid response and high sensitivity, from a series of flammable and toxic/corrosive gases, indicating their potential applications for high sensitivity gas sensors.

引用

页数：7

共 27 条

[1] Sonochemical synthesis of nanosized hollow hematite [J].

Bang, Jin Ho ;

Suslick, Kenneth S. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (08) :2242-+

[2]

Bersani D, 1999, J RAMAN SPECTROSC, V30, P355, DOI 10.1002/(SICI)1097-4555(199905)30:5<355::AID-JRS398>3.0.CO

[3]

2-C

[4] A comparison of the gas sensing properties of solid state metal oxide semiconductor gas sensors produced by atmospheric pressure chemical vapour deposition and screen printing [J].

Binions, Russell ;

Carmalt, Claire J. ;

Parkin, Ivan P. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2007, 18 (01) :190-200

[5] Single-crystal dendritic micro-pines of magnetic α-Fe2O3:: Large-scale synthesis, formation mechanism, and properties [J].

Cao, MH ;

Liu, TF ;

Gao, S ;

Sun, GB ;

Wu, XL ;

Hu, CW ;

Wang, ZL .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (27) :4197-4201

[6] Translucent thin film Fe2O3 photoanodes for efficient water splitting by sunlight:: Nanostructure-directing effect of Si-doping [J].

Cesar, I ;

Kay, A ;

Martinez, JAG ;

Grätzel, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (14) :4582-4583

[7] α-Fe2O3 nanotubes in gas sensor and lithium-ion battery applications [J].

Chen, J ;

Xu, LN ;

Li, WY ;

Gou, XL .

ADVANCED MATERIALS, 2005, 17 (05) :582-+

[8] In situ and operando spectroscopy for assessing mechanisms of gas sensing [J].

Gurlo, Alexander ;

Riedel, Ralf .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (21) :3826-3848

[9] RETRACTED: Catalytic efficiency of iron(III) oxides in decomposition of hydrogen peroxide: Competition between the surface area and crystallinity of nanoparticles (Retracted article. See vol. 141, pg. 20566, 2019) [J].

Hermanek, Martin ;

Zboril, Radek ;

Medrik, No ;

Pechousek, Jiri ;

Gregor, Cenek .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (35) :10929-10936

[10] α-Fe2O3 nanorings prepared by a microwave-assisted hydrothermal process and their sensing properties [J].

Hu, Xianluo ;

Yu, Jimmy C. ;

Gong, Jingming ;

Li, Quan ;

Li, Guisheng .

ADVANCED MATERIALS, 2007, 19 (17) :2324-+

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