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Nanomaterials 2015, 5(3), 1250-1255; doi:10.3390/nano5031250

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

1
State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
2
Mining Engineering Post-Doctorate Mobility Station of Chongqing University, Chongqing 400044, China
3
International College of Chongqing Jiaotong University, Chongqing 400074, China
Academic Editors: Jordi Sort and Eva Pellicer
Received: 24 June 2015 / Revised: 13 July 2015 / Accepted: 16 July 2015 / Published: 22 July 2015
(This article belongs to the Special Issue Frontiers in Mesoporous Nanomaterials)
View Full-Text   |   Download PDF [843 KB, uploaded 22 July 2015]   |  

Abstract

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. View Full-Text
Keywords: WO3; crystal growth; functional; CO; sensors WO3; crystal growth; functional; CO; sensors
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wu, C.-S. Hydrothermal Fabrication of WO3 Hierarchical Architectures: Structure, Growth and Response. Nanomaterials 2015, 5, 1250-1255.

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