1. In situ synthesis of copper–ruthenium bimetallic nanoparticles on laser-induced graphene as a peroxidase mimic.
- Author
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Thirumalai, Dinakaran, Lee, Jun-Uk, Choi, Hyojeong, Kim, Minjeong, Lee, Jaewon, Kim, Suhkmann, Shin, Bo-Sung, and Chang, Seung-Cheol
- Subjects
PLATINUM nanoparticles ,CHEMICAL vapor deposition ,PEROXIDASE ,GRAPHENE ,NANOPARTICLES ,HYDROGEN detectors ,COPPER surfaces ,GRAPHENE synthesis - Abstract
A new type of disposable flexible sensor for hydrogen peroxide (H
2 O2 ) detection was developed by in situ synthesis of copper–ruthenium bimetallic nanoparticles on a laser-induced graphene surface (Cu–Ru/LIG). The approach produced Cu–Ru/LIG via a solid phase transfer mechanism which loaded the metal precursor onto LIG, followed by laser scribing without demanding chemical vapor deposition or solution-based reactions. Cu–Ru/LIG showed a high electrocatalytic response toward H2 O2 reduction at −0.4 V vs. Ag/AgCl. The sensor also showed good selectivity and reproducibility. This method provides an alternative route to easily synthesize various catalysts on conductive substrates for sensor applications. [ABSTRACT FROM AUTHOR]- Published
- 2021
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