Hydrogen Sensors from Composites of Ultra-small Bimetallic Nanoparticles and Porous Ion-Exchange Polymers

Won Tae Koo, Yoonseob Kim, Sunwoo Kim, Bong Lim Suh, Suchol Savagatrup, Jihan Kim, Sung Ju Lee, Timothy M. Swager, Il Doo Kim

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We have developed the facile and versatile synthesis of ultra-small bimetallic nanoparticles (NPs) using porous ion-exchange polymers. PdPt NPs derived from porous ion-exchange polymers show superior hydrogen (H2)-sensing performances at room temperature in air, with an ultra-low detection limit (0.4 ppm). The synergistic effect of PdPt NPs on H2 sensing is demonstrated through experimental results and simulations. In addition, a wireless H2-sensing system is achieved by combining our synthesis method with radio-frequency communication.

Original languageEnglish (US)
Pages (from-to)2746-2758
Number of pages13
JournalChem
Volume6
Issue number10
DOIs
StatePublished - Oct 8 2020

Keywords

  • bimetallic nanoparticles
  • hydrogen
  • ion exchange
  • PdPt
  • porous ion-exchange polymers
  • SDG3: Good health and well-being
  • SDG9: Industry, innovation, and infrastructure
  • sensors
  • wireless sensing

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Biochemistry, medical
  • Materials Chemistry

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