RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detection
This paper reports the first effective fabrication of a high-performance non-enzymatic glucose sensor based on activated carbon cloth (ACC) coated with reduced graphene oxide (RGO) decorated N-doped urchin-like nickel cobaltite (NiCo2O4) hollow microspheres. Hierarchically mesoporous N-doped NiCo2O4...
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Elsevier
2023-06-01
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Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023044080 |
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author | Prashant Shivaji Shewale Kwang-Seok Yun |
author_facet | Prashant Shivaji Shewale Kwang-Seok Yun |
author_sort | Prashant Shivaji Shewale |
collection | DOAJ |
description | This paper reports the first effective fabrication of a high-performance non-enzymatic glucose sensor based on activated carbon cloth (ACC) coated with reduced graphene oxide (RGO) decorated N-doped urchin-like nickel cobaltite (NiCo2O4) hollow microspheres. Hierarchically mesoporous N-doped NiCo2O4 hollow microspheres were synthesized using a facile solvothermal method, followed by thermal treatment in a nitrogen (N2) atmosphere. Subsequently, they were hydrothermally decorated with RGO nanoflakes. The resulting composite was dip-coated onto ACC, and its electrochemical and glucose sensing performances were investigated using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and chronoamperometric measurements in a three-electrode system. The composite electrode sensor demonstrates admirable sensitivity (6122 μM mM−1 cm−2) with an ultralow detection limit (5 nM, S/N = 3), and it performs well within a substantial linear range (0.5–1.450 mM). Additionally, it exhibits good long-term response stability and outstanding anti-interference performance. These outstanding results can be attributed to the synergistic effects of the highly electrically conductive ACC with multiple channels, the enhanced catalytic activity of highly porous N-doped NiCo2O4 hollow microspheres, and the large electroactive sites provided by its well-developed hierarchical nanostructure and RGO nanoflakes. The findings highlight the enormous potential of the ACC/N-doped NiCo2O4@RGO electrode for non-enzymatic glucose sensing. |
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issn | 2405-8440 |
language | English |
last_indexed | 2024-03-13T05:11:17Z |
publishDate | 2023-06-01 |
publisher | Elsevier |
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spelling | doaj.art-bbe76291807e46538a8040f44ddb97592023-06-16T05:10:23ZengElsevierHeliyon2405-84402023-06-0196e17200RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detectionPrashant Shivaji Shewale0Kwang-Seok Yun1Department of Electronic Engineering, Sogang University, Seoul, Republic of KoreaCorresponding author.; Department of Electronic Engineering, Sogang University, Seoul, Republic of KoreaThis paper reports the first effective fabrication of a high-performance non-enzymatic glucose sensor based on activated carbon cloth (ACC) coated with reduced graphene oxide (RGO) decorated N-doped urchin-like nickel cobaltite (NiCo2O4) hollow microspheres. Hierarchically mesoporous N-doped NiCo2O4 hollow microspheres were synthesized using a facile solvothermal method, followed by thermal treatment in a nitrogen (N2) atmosphere. Subsequently, they were hydrothermally decorated with RGO nanoflakes. The resulting composite was dip-coated onto ACC, and its electrochemical and glucose sensing performances were investigated using electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and chronoamperometric measurements in a three-electrode system. The composite electrode sensor demonstrates admirable sensitivity (6122 μM mM−1 cm−2) with an ultralow detection limit (5 nM, S/N = 3), and it performs well within a substantial linear range (0.5–1.450 mM). Additionally, it exhibits good long-term response stability and outstanding anti-interference performance. These outstanding results can be attributed to the synergistic effects of the highly electrically conductive ACC with multiple channels, the enhanced catalytic activity of highly porous N-doped NiCo2O4 hollow microspheres, and the large electroactive sites provided by its well-developed hierarchical nanostructure and RGO nanoflakes. The findings highlight the enormous potential of the ACC/N-doped NiCo2O4@RGO electrode for non-enzymatic glucose sensing.http://www.sciencedirect.com/science/article/pii/S2405844023044080NiCo2O4RGOCompositeN-dopingNon-enzymaticGlucose detection |
spellingShingle | Prashant Shivaji Shewale Kwang-Seok Yun RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detection Heliyon NiCo2O4 RGO Composite N-doping Non-enzymatic Glucose detection |
title | RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detection |
title_full | RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detection |
title_fullStr | RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detection |
title_full_unstemmed | RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detection |
title_short | RGO decorated N-doped NiCo2O4 hollow microspheres onto activated carbon cloth for high-performance non-enzymatic electrochemical glucose detection |
title_sort | rgo decorated n doped nico2o4 hollow microspheres onto activated carbon cloth for high performance non enzymatic electrochemical glucose detection |
topic | NiCo2O4 RGO Composite N-doping Non-enzymatic Glucose detection |
url | http://www.sciencedirect.com/science/article/pii/S2405844023044080 |
work_keys_str_mv | AT prashantshivajishewale rgodecoratedndopednico2o4hollowmicrospheresontoactivatedcarbonclothforhighperformancenonenzymaticelectrochemicalglucosedetection AT kwangseokyun rgodecoratedndopednico2o4hollowmicrospheresontoactivatedcarbonclothforhighperformancenonenzymaticelectrochemicalglucosedetection |