Type
Text
Type
Thesis
Advisor
Gouma, Pelagia Irene | stanacevic, Milutin | Simon, Sanford.
Date
2014-12-01
Keywords
flame spray pyrolysis, metal oxide semiconductor, nitric oxide, sensor, tungsten trioxide | Materials Science
Department
Department of Materials Science and Engineering.
Language
en_US
Source
This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree.
Identifier
http://hdl.handle.net/11401/76310
Publisher
The Graduate School, Stony Brook University: Stony Brook, NY.
Format
application/pdf
Abstract
Nano-scale tungsten trioxide particles have been synthesized by the flame spray pyrolysis method and a 3×3 mm2 sensor was made by the drop-coating method using the nanoparticles as the active element. After heat-treatment at 500 °C, the materials structure and morphology were characterized by X-ray diffraction, transmission electron microscopy and Raman spectroscopy. Sensing tests were carried out at 200 and 350 °C respectively, down to a trace nitric oxide concentration of 100 parts per billion. The sensor sensitivity was remarkable at these two working conditions employed in this work, providing evidence for the importance of flame spray pyrolysis method as a scalable sensor materials processing technique. | Nano-scale tungsten trioxide particles have been synthesized by the flame spray pyrolysis method and a 3×3 mm2 sensor was made by the drop-coating method using the nanoparticles as the active element. After heat-treatment at 500 °C, the materials structure and morphology were characterized by X-ray diffraction, transmission electron microscopy and Raman spectroscopy. Sensing tests were carried out at 200 and 350 °C respectively, down to a trace nitric oxide concentration of 100 parts per billion. The sensor sensitivity was remarkable at these two working conditions employed in this work, providing evidence for the importance of flame spray pyrolysis method as a scalable sensor materials processing technique. | 52 pages
Recommended Citation
Huang, Jiahao, "Preparation and sensing properties of FSP processed WO3 nano sensor" (2014). Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions). 2234.
https://commons.library.stonybrook.edu/stony-brook-theses-and-dissertations-collection/2234