Journal
MATERIALS LETTERS
Volume 285, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2020.129001
Keywords
H2O2; Sensors; N, S co-doped graphene; Nanocomposites
Funding
- Deanship of Scientific Research, King Saud University
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In this study, N, S co-doped graphene/CNT-Fe3C composite materials were prepared using a high-temperature pyrolytic synthesis process, and the optimization of heteroatom doping for electrocatalytic performance towards H2O2 detection was characterized. The NS-G/CNTFe-1 electrode showed excellent catalytic activity for non-enzymatic hydrogen peroxide sensing with rapid response time, high cathodic current, wide linear range, high selectivity, and good operational stability.
A high temperature pyrolytic synthesis process was used to prepare N, S co-doped graphene/CNT-Fe3C composite materials. The optimization of heteroatom doping and its electrocatalytic performance towards H2O2 detection is significantly characterized and evaluated. The non-enzymatic hydrogen peroxide sensing is well catalyzed at NS-G/CNTFe-1 (10:1 weight ratio of melamine and thiourea) electrode with rapid response time and high cathodic current at-0.15 V (vs. Ag/AgCl), as compared to other modified electrodes. Chronoamperometry study reveals that the NS-G/CNTFe-1 electrode has a wide linear range with high selectivity and good operational stability. (c) 2020 Elsevier B.V. All rights reserved.
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