CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12771 > Article
Poster + Paper
27 November 2023 Hydrogen sensor based on PPBG coated with porous Pt/WO3
Jingjing Wang, Wenbin Hu, Minghong Yang, Stefan Kefer, Ralf Hellmann
Author Affiliations +
Proceedings Volume 12771, Advanced Sensor Systems and Applications XIII; 1277116 (2023) https://doi.org/10.1117/12.2683838
Event: SPIE/COS Photonics Asia, 2023, Beijing, China
Conference Poster
Abstract
Hydrogen energy is widely used as one of the cleanest energy sources. However, due to its explosive nature, monitoring the early stages of hydrogen leakage has become a current research focus. This study presents a novel hydrogen sensor suitable for low concentration hydrogen sensing, which combines a planar polymer Bragg grating (PPBG) with a porous Pt/WO3 hydrogen sensitive material modified by MIL-100 (Fe) as a template. PPBG are based on planar cyclo-olefin copolymer substrates with integrated waveguides and Bragg gratings. Due to the polymer's inherently increased coefficient of thermal expansion, the concept provides superior thermal sensitivity. Porous Pt/WO3 has a larger specific surface area and better response characteristics than the original Pt/WO3. By utilizing the thermal effect of the reaction between tungsten trioxide and hydrogen gas, the wavelength shift of PPBG is caused by temperature transformation. A series of experimental results tested at different hydrogen concentrations indicates the sensitivity of the sensor is 575 pm/%. The combination of materials and devices with superior performance enhances the sensitivity of the sensor to hydrogen at low concentrations compared with fiber Bragg grating (FBG) hydrogen sensors. The hydrogen sensor has the advantages of high sensitivity at low concentrations and compact structure, which will have great potential in industrial applications.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Jingjing Wang, Wenbin Hu, Minghong Yang, Stefan Kefer, and Ralf Hellmann "Hydrogen sensor based on PPBG coated with porous Pt/WO3", Proc. SPIE 12771, Advanced Sensor Systems and Applications XIII, 1277116 (27 November 2023); https://doi.org/10.1117/12.2683838
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 4 PAGES + POSTER
DOWNLOAD PAPER SAVE TO MY LIBRARY
DOWNLOAD
POSTER
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Hydrogen
Sensors
Porosity
Bragg gratings
Polymers
Fiber optics sensors
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top