Cascade Reaction-Based Chemiresistive Array for Ethylene Sensing.
Pd catalysts
Wacker reaction
carbon nanotubes
cascade reactions
chemiresistors
ethylene
gas sensors
Journal
ACS sensors
ISSN: 2379-3694
Titre abrégé: ACS Sens
Pays: United States
ID NLM: 101669031
Informations de publication
Date de publication:
22 05 2020
22 05 2020
Historique:
pubmed:
12
5
2020
medline:
15
5
2021
entrez:
12
5
2020
Statut:
ppublish
Résumé
Chemiresistive sensors, which are based on semiconducting materials, offer real-time monitoring of environment. However, detection of nonpolar chemical substances is often challenging because of the weakness of the doping effect. Herein, we report a concept of combining a cascade reaction (CR) and a chemiresistive sensor array for sensitive and selective detection of a target analyte (herein, ethylene in air). Ethylene was converted to acetaldehyde through a Pd-catalyzed heterogeneous Wacker reaction at 40 °C, followed by condensation with hydroxylamine hydrochloride to emit HCl vapor. HCl works as a strong dopant for single-walled carbon nanotubes (SWCNTs), enabling the
Identifiants
pubmed: 32390438
doi: 10.1021/acssensors.0c00194
doi:
Substances chimiques
Ethylenes
0
Gases
0
Nanotubes, Carbon
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM