Hydrothermal Fabrication of WO₃ Hierarchical Architectures: Structure, Growth and Response

Recently hierarchical architectures, consisting of two-dimensional (2D) nanostructures, are of great interest for potential applications in energy and environmental. Here, novel rose-like WO₃ hierarchical architectures were successfully synthesized via a facile hydrothermal method. The as-prepared W...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2015-07, Vol.5 (3), p.1250-1255
Main Author: Wu, Chuan-Sheng
Format: Article
Language:English
Subjects:
Acids
Architecture
Comparative studies
crystal growth
Fabrication
functional
Gas sensors
Nanomaterials
Nanostructure
Oxalic acid
Sensors
Three dimensional
Tungsten oxides
Two dimensional
WO3
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Summary:Recently hierarchical architectures, consisting of two-dimensional (2D) nanostructures, are of great interest for potential applications in energy and environmental. Here, novel rose-like WO₃ hierarchical architectures were successfully synthesized via a facile hydrothermal method. The as-prepared WO₃ hierarchical architectures were in fact assembled by numerous nanosheets with an average thickness of ~30 nm. We found that the oxalic acid played a significant role in governing morphologies of WO₃ during hydrothermal process. Based on comparative studies, a possible formation mechanism was also proposed in detail. Furthermore, gas-sensing measurement showed that the well-defined 3D WO₃ hierarchical architectures exhibited the excellent gas sensing properties towards CO.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano5031250