Fabrication of Ni/Cu ordered bowl-like array film for the highly sensitive nonenzymatic detection of glucose
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Ni/Cu ordered bowl-like array film was successfully synthesised by a two-step electrodeposition method using monodisperse polystyrene spheres as a template. A Cu bowl-like array was first electrochemically deposited into the template. After dissolving the polystyrene spheres, a Ni film was electrodeposited onto the Cu array. Morphology analysis revealed that the final product had an ordered hexagonal close-packed bowl-like pore array composed of nanoparticles. The Ni/Cu bowl-like array film could be directly used as a glucose-sensing material. It exhibited a high sensitivity of 3924 μA mM−1 cm−2, a wide linearity ranging from 0.5 μM to 2.5 mM and detection limit as low as 0.05 μM. These results indicate that the Ni/Cu bowl-like array film is promising for the development of nonenzymatic glucose sensors.
The present research work received the support of the Natural Science Foundation Project of CQ CSTC (Grant No. cstc2019jcyj-msxmX0311) and the Fundamental Research Funds for the Central Universities (Grant No. XDJK2018B033).
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Conflict of interest
All authors declare that they have no conflict of interest.
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