Hydrogen Sensors from Composites of Ultra-small Bimetallic Nanoparticles and Porous Ion-Exchange Polymers
Name
doi-10.1016 j.chempr.2020.07.015.pdf
Description
Accepted version
Size
4.63 MB
Format
Adobe PDF
Checksum (MD5)
ebf7d850d1f0f9871fc0bb5b14a1013b
Author(s)
Koo, Won-Tae
Kim, Yoonseob
Kim, Sunwoo
Suh, Bong Lim
Savagatrup, Suchol
Kim, Jihan
Lee, Sung-Ju
Swager, Timothy M
Kim, Il-Doo
Date Issued
October 2020
Journal
Chem
Publisher
Elsevier BV
Citation
Koo, Won-Tae et al. "Hydrogen Sensors from Composites of Ultra-small Bimetallic Nanoparticles and Porous Ion-Exchange Polymers." Chem 6, 10 (October 2020): P2746-2758 © 2020 Elsevier Inc
Version
Author's final manuscript
Abstract
Hydrogen (H2) is a flammable gas, and even tiny leaks of H2 must be detected for safety. However, the detection of low levels (below ppm) of H2 in air still remains an unmet challenge. Herein, we present a facile synthesis of bimetallic nanoparticles (BM-NPs) by using porous ion-exchange polymers in order to develop superior H2 sensors. The porous ion-exchange polymers enable the versatile fabrication of ultra-small BM-NPs on various supports. In particular, PdPt NPs derived from our method show excellent H2-sensing performances at room temperature in air, with an ultra-low detection limit (0.4 ppm), as a result of the synergistic effect of PdPt NPs on H2 sensing. We further developed a wireless H2-sensing system by combining PdPt NPs with radio-frequency communication. Our method can not only pave a new way in the field of H2 sensors but also be easily extended to the fabrication of various ultra-small BM-NPs for diverse applications needed the superior activity of BM-NPs.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
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DOI of Published Version
https://doi.org/10.1016/j.chempr.2020.07.015
