Highly Selective Wearable Alcohol Homologue Sensors Derived from Pt-Coated Truncated Octahedron Au

Unhealthy alcohol inhalation is among the top 10 causes of preventable death. However, the present alcohol sensors show poor selectivity among alcohol homologues. Herein, Pt-coated truncated octahedron Au (Pt m @Auto) as the electrocatalyst for a highly selective electrochemical sensor toward alcoho...

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Veröffentlicht in:ACS sensors 2022-10, Vol.7 (10), p.3067-3076
Hauptverfasser: Ma, Hongting, Cheng, Peihao, Chen, Chuanrui, Geng, Xiaodong, Yang, Kaizhou, Lv, Fengjuan, Ma, Junlin, Jiang, Yue, Liu, Quanli, Su, Yan, Li, Jian, Zhu, Nan
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Sprache:eng
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Zusammenfassung:Unhealthy alcohol inhalation is among the top 10 causes of preventable death. However, the present alcohol sensors show poor selectivity among alcohol homologues. Herein, Pt-coated truncated octahedron Au (Pt m @Auto) as the electrocatalyst for a highly selective electrochemical sensor toward alcohol homologues has been designed. The alcohol sensor is realized by distinguishing the electro-oxidation behavior of methanol (MeOH), ethanol (EtOH), or isopropanol (2-propanol). Intermediates from alcohols are further oxidized to CO2 by Pt m @Auto, resulting in different oxidation peaks in cyclic voltammograms and successful distinction of alcohols. Pt m @Auto is then modified on wearable glove-based sensors for monitoring actual alcohol samples (MeOH fuel, vodka, and 2-propanol hand sanitizer), with good mechanical performance and repeatability. The exploration of the Pt m @Auto-based wearable alcohol sensor is expected to be suitable for environmental measurement with high selectivity for alcohol homologues or volatile organic compounds.
ISSN:2379-3694
2379-3694
DOI:10.1021/acssensors.2c01392