CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties

CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties

WO3 hierarchical porous structures were successfully synthesized via cetyltrimethylammonium bromide- (CTAB-) assisted hydrothermal method. The structure and morphology were investigated using scanning electron microscope, X-ray diffractometer, transmission electron microscopy, X-ray photoelectron sp...

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Main Authors: Dan Meng, Guosheng Wang, Xiaoguang San, Yanbai Shen, Guodong Zhao, Yajing Zhang, Fanli Meng
Format: Article
Language:English
Published: Hindawi Limited 2015-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2015/393205
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spelling doaj-013c5f8cc07b40f0a80db5ea281368c32020-11-24T21:55:30ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292015-01-01201510.1155/2015/393205393205CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing PropertiesDan Meng0Guosheng Wang1Xiaoguang San2Yanbai Shen3Guodong Zhao4Yajing Zhang5Fanli Meng6College of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaCollege of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaCollege of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaCollege of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaCollege of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaCollege of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaResearch Center for Biomimetic Functional Materials and Sensing Devices, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, ChinaWO3 hierarchical porous structures were successfully synthesized via cetyltrimethylammonium bromide- (CTAB-) assisted hydrothermal method. The structure and morphology were investigated using scanning electron microscope, X-ray diffractometer, transmission electron microscopy, X-ray photoelectron spectra, Brunauer-Emmett-Teller nitrogen adsorption-desorption, and thermogravimetry and differential thermal analysis. The result demonstrated that WO3 hierarchical porous structures with an orthorhombic structure were constructed by a number of nanoparticles about 50–100 nm in diameters. The H2 gas sensing measurements showed that well-defined WO3 hierarchical porous structures with a large specific surface area exhibited the higher sensitivity compared with products without CTAB at all operating temperatures. Moreover, the reversible and fast response to H2 gas and good selectivity were obtained. The results indicated that the WO3 hierarchical porous structures are promising materials for gas sensors.http://dx.doi.org/10.1155/2015/393205
collection DOAJ
language English
format Article
sources DOAJ
author Dan Meng
Guosheng Wang
Xiaoguang San
Yanbai Shen
Guodong Zhao
Yajing Zhang
Fanli Meng
spellingShingle Dan Meng
Guosheng Wang
Xiaoguang San
Yanbai Shen
Guodong Zhao
Yajing Zhang
Fanli Meng
CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties
Journal of Nanomaterials
author_facet Dan Meng
Guosheng Wang
Xiaoguang San
Yanbai Shen
Guodong Zhao
Yajing Zhang
Fanli Meng
author_sort Dan Meng
title CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties
title_short CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties
title_full CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties
title_fullStr CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties
title_full_unstemmed CTAB-Assisted Hydrothermal Synthesis of WO3 Hierarchical Porous Structures and Investigation of Their Sensing Properties
title_sort ctab-assisted hydrothermal synthesis of wo3 hierarchical porous structures and investigation of their sensing properties
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2015-01-01
description WO3 hierarchical porous structures were successfully synthesized via cetyltrimethylammonium bromide- (CTAB-) assisted hydrothermal method. The structure and morphology were investigated using scanning electron microscope, X-ray diffractometer, transmission electron microscopy, X-ray photoelectron spectra, Brunauer-Emmett-Teller nitrogen adsorption-desorption, and thermogravimetry and differential thermal analysis. The result demonstrated that WO3 hierarchical porous structures with an orthorhombic structure were constructed by a number of nanoparticles about 50–100 nm in diameters. The H2 gas sensing measurements showed that well-defined WO3 hierarchical porous structures with a large specific surface area exhibited the higher sensitivity compared with products without CTAB at all operating temperatures. Moreover, the reversible and fast response to H2 gas and good selectivity were obtained. The results indicated that the WO3 hierarchical porous structures are promising materials for gas sensors.
url http://dx.doi.org/10.1155/2015/393205
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