Flame Spray Synthesis of WO3 for No Breath Monitors
Gouma PI* and Wang L
Center for Nanomaterials and Sensor Development, SUNY Stony Brook, NY11794, USA
- *Corresponding Author:
- Gouma PI
Center for Nanomaterials and Sensor Development
SUNY Stony Brook, NY11794, USA
E-mail: [email protected]
Received Date: March 04, 2015; Accepted Date: April 20, 2015; Published Date: April 28, 2015
Citation: Gouma PI, Wang L (2015) Flame Spray Synthesis of WO3 for No Breath Monitors. J Material Sci Eng 4:165. doi: 10.4172/2169-0022.1000165
Copyright: © 2015 Gouma PI, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The γ-phase polymorph of WO3 has been established in the literature as a selective NO sensor. When processed at the nanoscale, this material shows high sensitivity to trace levels of NO gas. Thus, it is intended for use in breath monitors of NO in exhaled breath to diagnose asthma. Focusing on the economic and scalable synthesis of this material, this paper reports on the flame-spray processing of WO3 nanopowders of the monoclinic γ-phase. Structural and chemical characterization of as-sprayed and heat-treated nanopowders were carried out that revealed the conditions for tailored phase and particle size distribution suitable for the intended application of this material in breath-based diagnostics.