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

Nanomaterials

Chuan-Sheng Wu¹  Jordi Sort² 

[1] State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;id="af1-nanomaterials-05-01250">1State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, Chi

关键词: WO₃;    crystal growth;    functional;    CO;    sensors;   

DOI  :  10.3390/nano5031250

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.