Thermochemical hydrogen sensor based on Pt-coated nanofiber catalyst deposited on pyramidally textured thermoelectric film
作者： Seil Kim , Yoseb Song , Young-In Lee , Yong-Ho Choa
DOI: 10.1016/J.APSUSC.2016.10.022
关键词:
摘要: Abstract The hydrogen gas-sensing performance has been systemically investigated of a new type thermochemical (TCH) sensor, composed pyramidally textured thermoelectric (TE) film and catalytic Pt-coated nanofibers (NFs) deposited over the TE film. was stoichiometric Bi 2 Te 3 , synthesized by means cost-effective electrochemical deposition onto silicon wafer. resulting played critical role in maximizing gas flow around overlying Pt NFs, which were electrospinning followed sputtering acted as heating catalyst. optimal temperature increase NFs determined optimizations durations. output voltage signal optimized TCH sensor based on 17.5 times higher than that thin coated directly pyramidal material using same duration, under fixed conditions vol% H air at room temperature. This observation can be explained increased surface area (111) planes accessible NFs. best response time recovery observed for respectively 17 2 s conditions. We believe this widely used supersensitive detection employing small-size various chalcogenide films with high performance.
harvard.edu
sci-hub.se 参考文章(26)
Yanhong Yin, Chun′an Ma, Ziping Wu, Man Zhao, Litao Chen, Youqun Chu, Synthesis and Characterization of Sphere-like Pt Nanoparticles Supported on DWCNT/WO3 Nanorods with Electrocatalytic Activity Journal of Materials Science & Technology. ,vol. 31, pp. 888- 894 ,(2015) , 10.1016/J.JMST.2014.09.023
Maiko NISHIBORI, Woosuck SHIN, Noriya IZU, Toshio ITOH, Ichiro MATSUBARA, Nobuyuki WATANABE, Toshihiro KASUGA, Thermoelectric hydrogen sensors using Si and SiGe thin films with a catalytic combustor Journal of the Ceramic Society of Japan. ,vol. 118, pp. 188- 192 ,(2010) , 10.2109/JCERSJ2.118.188
Bhaskar R. Sathe, Rhodium nanoparticle–carbon nanosphere hybrid material as an electrochemical hydrogen sensor RSC Advances. ,vol. 3, pp. 5361- 5365 ,(2013) , 10.1039/C3RA00105A
M. Nishibori, W. Shin, K. Tajima, L.F. Houlet, N. Izu, T. Itoh, I. Matsubara, Long-term stability of Pt/alumina catalyst combustors for micro-gas sensor application Journal of The European Ceramic Society. ,vol. 28, pp. 2183- 2190 ,(2008) , 10.1016/J.JEURCERAMSOC.2008.02.018
Hu Huang, Weiling Luan, Jian-Song Zhang, Yun-Shi Qi, Shan-Tung Tu, Thermoelectric hydrogen sensor working at room temperature prepared by bismuth-telluride P-N couples and Pt/γ-Al2O3 Sensors and Actuators B-chemical. ,vol. 128, pp. 581- 585 ,(2008) , 10.1016/J.SNB.2007.07.060
L MARTIN, Electrochemical hydrogen sensor for safety monitoring Solid State Ionics. ,vol. 175, pp. 527- 530 ,(2004) , 10.1016/J.SSI.2004.04.042
Marisol S. Martı́n-González, Amy L. Prieto, Ronald Gronsky, Timothy Sands, Angelica M. Stacy, Insights into the Electrodeposition of Bi2Te3 Journal of The Electrochemical Society. ,vol. 149, ,(2002) , 10.1149/1.1509459
Masahiko Matsumiya, Woosuck Shin, Noriya Izu, Norimitsu Murayama, Nano-structured thin-film Pt catalyst for thermoelectric hydrogen gas sensor Sensors and Actuators B-chemical. ,vol. 93, pp. 309- 315 ,(2003) , 10.1016/S0925-4005(03)00223-5
Jixiang Dai, Minghong Yang, Xun Yu, Hong Lu, Optical hydrogen sensor based on etched fiber Bragg grating sputtered with Pd/Ag composite film Optical Fiber Technology. ,vol. 19, pp. 26- 30 ,(2013) , 10.1016/J.YOFTE.2012.09.006
T. Hübert, L. Boon-Brett, G. Black, U. Banach, Hydrogen Sensors - A review Sensors and Actuators B-chemical. ,vol. 157, pp. 329- 352 ,(2011) , 10.1016/J.SNB.2011.04.070