Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 260, Issue -, Pages 346-356Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.12.208
Keywords
Flake BN; Synthesis; Sensor; Electrochemical detection
Funding
- National Science Fund for Excellent Young Scholars of China [51522402]
- National Science Fund of China [51572019, U1460201]
- Special Fund of the National Excellent Doctoral Dissertation [201437]
- [FRF-TP-15-006C1]
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Flake hexagonal boron nitride (h-BN) was synthesized combining low temperature combustion synthesis (LCS) and carbothermal reduction and nitridation methods. The obtained h-BN is characterized as amorphous and layered structure with high density defects and active surface groups. The electrochemical properties of the flake BN modified glassy carbon electrode were investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). These results demonstrate this kind of novel electrodes exhibit excellent electrocatalytic activity and high selectivity for electrochemical detection of ascorbic acid (AA), dopamine (DA) and uric acid (UA). The liner relationships between current intensities and concentrations are found to be 30-1000, 0.5-150 and 1-300 mu M, with detection limits of 3.77, 0.02 and 0.15 mu M for AA, DA and UA, respectively. The sensor also exhibits good anti-interference ability, high stability and reproducibility. (c) 2018 Elsevier B.V. All rights reserved.
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