Abstract
A hexagonal boron carbon nitride hybrid (h-BCN) is developed by in situ high-temperature solid-state reaction and subsequent chemical reduction with hydrazine. The XRD and TEM results show that the h-BCN features interlayered structures with two characteristic d-spacing of 0.33 and 0.21 nm. The obtained h-BCN exhibits significant electrochemical sensor for dopamine and uric acid. The cyclic voltammetric and amperometric experiments revealed a good linear relationship between current densities and concentrations of dopamine (DA) of 10-300 μM and uric acid (UA) of 10-500 μM, with high sensitivities of 0.14 μA/μM and 0.32 μA/μM and detection limits of 5 μM and 2 μM, respectively.
Highlights
Graphene, a two-dimensional monolayer of carbon atom arranged in honeycomb network, has attracted tremendous attention due to its unique properties such as novel electronic properties, excellent mechanical flexibility, large surface area, and high thermal conductivity and chemical stability [1,2,3,4]
The constructed h-boron carbon nitride (BCN) electrode exhibits excellent sensor properties for electrochemical detection of dopamine and uric acid suggesting a good prospect for practical applications
The prepared h-BNC sample has the same mode of the B-N-B group with the by graphene (BN) sample
Summary
A two-dimensional monolayer of carbon atom arranged in honeycomb network, has attracted tremendous attention due to its unique properties such as novel electronic properties, excellent mechanical flexibility, large surface area, and high thermal conductivity and chemical stability [1,2,3,4]. The 2D structure of h-BN is very similar to the graphene layer bonding with two different chemical species of boron and nitrogen atoms. It displays excellent thermal conductivity, good mechanical properties, and excellent chemical stability [7,8,9,10]. Ci et al used the thermal catalytic CVD growth method with NH3–BH3 as precursors to obtain large area of 2D h-BCN films on Cu substrate [23] They found that a wide range of compositions may be engineered to build new Journal of Nanomaterials semiconducting 2D architectures, which enables the development of bandgap-engineered applications in electronics and optics and properties that are distinct from those of graphene and h-BN. The constructed h-BCN electrode exhibits excellent sensor properties for electrochemical detection of dopamine and uric acid suggesting a good prospect for practical applications
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