Premium
Highly Oriented Nitrogen‐doped Carbon Nanotube Integrated Bimetallic Cobalt Copper Organic Framework for Non‐enzymatic Electrochemical Glucose and Hydrogen Peroxide Sensor
Author(s) -
Kim So eun,
Muthurasu Alagan
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060566
Subject(s) - materials science , bimetallic strip , carbon nanotube , chronoamperometry , cobalt , hydrogen peroxide , chemical engineering , electrochemical gas sensor , cyclic voltammetry , copper , metal organic framework , electrochemistry , inorganic chemistry , nanotechnology , electrode , organic chemistry , chemistry , metal , metallurgy , engineering , adsorption
The hierarchical three‐dimensional nitrogen‐doped carbon nanotube anchored bimetallic cobalt copper organic framework (NCNT MOF CoCu) is successfully synthesized by the direct growth approach using the high‐temperature carbonization of bimetallic cobalt copper organic framework (MOF CoCu‐500). The as‐prepared NCNT MOF CoCu nanostructure possesses high‐level activity for both glucose and hydrogen peroxide (H 2 O 2 ) sensing molecules. The cyclic voltammetry (CV) and chronoamperometry (CA) studies demonstrate excellent electrocatalytic performance for the oxidation of glucose with a linear range of 0.05 to 2.5 mM, high sensitivity of 1027 μA mM −1 cm −2 , and the lowest detection limit of 0.15 μM. Similarly, the NCNT MOF CoCu nanostructure showed significantly higher H 2 O 2 activity with a linear range of 0.05 to 3.5 mM, high sensitivity of 639.5 μA mM −1 cm −2 , and the lowest detection limit of 0.206 μM. Thanks to its special hierarchical nanoarchitecture, homogeneous nitrogen‐doped carbon nanotubes, and highly graphitized carbon, which may be increased the synergistic effect between bimetallic CoCu and NCNT in the organic framework. The potentially effective fabricated sensor was also used as a suitable probe for the detection of glucose and H 2 O 2 in the analysis of the real samples.