Fe3 N-Co2 N Nanowires Array: A Non-Noble-Metal Bifunctional Catalyst Electrode for High-Performance Glucose Oxidation and H2 O2 Reduction toward Non-Enzymatic Sensing Applications.
Chemistry
; 23(22): 5214-5218, 2017 Apr 19.
Article
em En
| MEDLINE
| ID: mdl-28266077
ABSTRACT
Among reported electrode materials, a nanoarray is an attractive architecture for molecular detection because of its large specific surface area and easy accessibility for target molecules. Here, a new Fe3 N-Co2 N nanowires array grown on carbon cloth (Fe3 N-Co2 N/CC) is reported as a non-noble-metal bifunctional catalyst electrode for high-performance glucose oxidation and H2 O2 reduction. As an electrochemical non-enzymatic sensor for glucose detection, Fe3 N-Co2 N/CC shows a fast response time of 8â
s, a low detection limit (LOD) of 77â
nm (signal/noise=3), and a high sensitivity of 4333.7â
µA mm-1 cm-2 . As an H2 O2 sensor, it shows a LOD of 59â
nm (signal/noise=3) and a sensitivity of 2273.8â
µA mm-1 cm-2 with a response time of 2â
s. In addition, the proposed sensor is stable with high selectivity, specificity, and reproducibility, and its application for real sample analysis has been successfully demonstrated.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Chemistry
Assunto da revista:
QUIMICA
Ano de publicação:
2017
Tipo de documento:
Article