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Nanomaterials 2015, 5(3), 1250-1255;

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

State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
Mining Engineering Post-Doctorate Mobility Station of Chongqing University, Chongqing 400044, China
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]   |  


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

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