Quasi-aligned Cu₂S/Cu(OH)₂ nanorod arrays anchored on Cu foam as self-supported electrode for non-enzymatic glucose detection

Abstract

Self-supported Cu2S/Cu(OH)2 composite nanorods for highly sensitive non-enzymatic glucose sensing were in-situ grown on Cu foam by simple hydrothermal treatment of aligned Cu(OH)2 nanorods. The physicochemical and electrochemical properties of the as-fabricated Cu2S/Cu(OH)2 composite nanorods were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscope, X-ray photoelectron spectroscope, cyclic voltammetry, electrochemical impedance spectroscopy, amperometric i-t measurements. The mechanism of the composite nanorods produced on conductive substrates was also explored. The electrode exhibits a sensitivity of 9626.88 μA mM-1 cm-2 towards glucose with good anti-interference ability, indicating it a promising electrode material for the enhanced non-enzymatic glucose detection.

Emerging Trends in Non-Enzymatic Cholesterol Biosensors: Challenges and Advancements

“…The functionalized C and Au NPs on TNTs provide fast electron transport and serve as passages for th species. The improved performance of the electrode can be considered due to the i Cu2S, a well-known P-type semiconductor, is widely used in biosensors [60][61][62]. Its versatile morphology makes it very useful for electrochemical applications.…”

“…For example, graphene has been used to immobilize biomolecules, such as DNA, antibodies, and enzymes, to develop efficient and selective biosensors. Cu 2 S, a well-known P-type semiconductor, is widely used in biosensors [60][61][62]. Its versatile morphology makes it very useful for electrochemical applications.…”

“…Cu 2 S, a well-known P-type semiconductor, is widely used in biosensors [ 60 , 61 , 62 ]. Its versatile morphology makes it very useful for electrochemical applications.…”

In:SnO2/Yb2S3:Cu2S:ZnS: A Rare Earth Metal Sulfide‐Conjugated Transition Metal Sulfide Photoactive Electrode

“…[ 34 ] It is possible to create Cu 2 S nanostructures such as nanocrystals, nanowires, nanorods, nanodisks, nanoplatelets, and nanoplatelets utilizing a number of fabrication methods, such as hot injection molding, gas–solid reactions, suspension‐free thermolysis, and copper‐based precursors. [ 35,36 ]…”

“…[34] It is possible to create Cu 2 S nanostructures such as nanocrystals, nanowires, nanorods, nanodisks, nanoplatelets, and nanoplatelets utilizing a number of fabrication methods, such as hot injection molding, gas-solid reactions, suspension-free thermolysis, and copper-based precursors. [35,36] Cu 2 S has been previously utilized in the quantum dotsensitized solar cells. [37] The Mousavi-Kamazani group elaborated that nanocomposites can be used to increase the power conversion efficiency of a single junction solar cell beyond the Shockley-Queisser limit.…”