Porous {alpha}-Fe{sub 2}O{sub 3} hollow microspheres and their application for acetone sensor

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.09.033· OSTI ID:21504029

Wang, Shurong ^[1]; Wang, Liwei; Yang, Taili; Liu, Xianghong; Zhang, Jun; Zhu, Baolin; Zhang, Shoumin; Huang, Weiping; Wu, Shihua ^[1]

---

1. Key Laboratory of Advanced Energy Materials Chemistry (MOE), Department of Chemistry, Nankai University, Tianjin 300071 (China)

Porous {alpha}-Fe{sub 2}O{sub 3} hollow microspheres were synthesized through a simple and efficient carbon sphere template method. The samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy and N{sub 2} adsorption-desorption. Structural characterization indicated that as-prepared {alpha}-Fe{sub 2}O{sub 3} hollow microspheres had porous structure with around 200 nm in diameter and thin shell about 10 nm thick. The average pore size and Brunauer-Emmett-Teller specific surface area of {alpha}-Fe{sub 2}O{sub 3} hollow microspheres were 6.5 nm and 111.6 m{sup 2}/g, respectively. The gas sensing behavior investigation showed that as-synthesized {alpha}-Fe{sub 2}O{sub 3} hollow microspheres exhibited very good gas sensing property to acetone vapor. -- Graphical Abstract: HRTEM images of the {alpha}-Fe{sub 2}O{sub 3} hollow microspheres. Display Omitted

• OSTI ID: 21504029
• Journal Information: Journal of Solid State Chemistry, Vol. 183, Issue 12; Other Information: DOI: 10.1016/j.jssc.2010.09.033; PII: S0022-4596(10)00432-9; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETONE
ADSORPTION
CARBON
DESORPTION
IRON OXIDES
MICROSPHERES
NITROGEN
POROUS MATERIALS
SCANNING ELECTRON MICROSCOPY
SENSORS
SPECIFIC SURFACE AREA
SPHERES
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY
CHALCOGENIDES
COHERENT SCATTERING
DIFFRACTION
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELEMENTS
IRON COMPOUNDS
KETONES
MATERIALS
MICROSCOPY
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
SCATTERING
SORPTION
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS