Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose

Kijun Kim; Sungjin Kim; Ho Nyun Lee; Young Min Park; Youn Sang Bae; Hyun Jong Kim

doi:10.1016/j.apsusc.2019.02.130

Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose

Kijun Kim, Sungjin Kim, Ho Nyun Lee, Young Min Park, Youn Sang Bae, Hyun Jong Kim

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article

15 Citations (Scopus)

Abstract

In this work, we fabricated a novel enzyme-free glucose sensor based on CuO nanorod, which was electrochemically derived from the copper-based metal-organic framework, Cu ₃ (BTC) ₂ (BTC: benzene tricarboxylate). Repeated potential cycling successfully oxidized Cu ₃ (BTC) ₂ to CuO, leaving residual carboxylate on the catalyst surface. The oxidation process was carefully investigated by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier-transform IR, and scanning electron microscopy. Cyclic voltammetry and chronoamperometry studies of the electrochemical oxidation of glucose on the CuO nanorod revealed excellent electrocatalytic performance with high sensitivity of 1523.5 μA mM ⁻¹ cm ⁻² , linear response up to 1.25 mM, and detection limit of 1 μM. Compared with commercial CuO powder, the CuO nanorod showed much higher sensitivity because of its large surface area (60.2 m ² g ⁻¹ ). Moreover, it exhibited good selectivity to glucose over potential interfering compounds. These results suggest the potential application of the Cu ₃ (BTC) ₂ -derived CuO nanorod as a non-enzymatic glucose sensor.

Original language	English
Pages (from-to)	720-726
Number of pages	7
Journal	Applied Surface Science
Volume	479
DOIs	https://doi.org/10.1016/j.apsusc.2019.02.130
Publication status	Published - 2019 Jun 15

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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Kim, K., Kim, S., Lee, H. N., Park, Y. M., Bae, Y. S., & Kim, H. J. (2019). Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose. Applied Surface Science, 479, 720-726. https://doi.org/10.1016/j.apsusc.2019.02.130

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title = "Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose",

abstract = " In this work, we fabricated a novel enzyme-free glucose sensor based on CuO nanorod, which was electrochemically derived from the copper-based metal-organic framework, Cu 3 (BTC) 2 (BTC: benzene tricarboxylate). Repeated potential cycling successfully oxidized Cu 3 (BTC) 2 to CuO, leaving residual carboxylate on the catalyst surface. The oxidation process was carefully investigated by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier-transform IR, and scanning electron microscopy. Cyclic voltammetry and chronoamperometry studies of the electrochemical oxidation of glucose on the CuO nanorod revealed excellent electrocatalytic performance with high sensitivity of 1523.5 μA mM −1 cm −2 , linear response up to 1.25 mM, and detection limit of 1 μM. Compared with commercial CuO powder, the CuO nanorod showed much higher sensitivity because of its large surface area (60.2 m 2 g −1 ). Moreover, it exhibited good selectivity to glucose over potential interfering compounds. These results suggest the potential application of the Cu 3 (BTC) 2 -derived CuO nanorod as a non-enzymatic glucose sensor. ",

author = "Kijun Kim and Sungjin Kim and Lee, {Ho Nyun} and Park, {Young Min} and Bae, {Youn Sang} and Kim, {Hyun Jong}",

year = "2019",

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doi = "10.1016/j.apsusc.2019.02.130",

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AU - Kim, Kijun

AU - Kim, Sungjin

AU - Lee, Ho Nyun

AU - Park, Young Min

AU - Bae, Youn Sang

AU - Kim, Hyun Jong

PY - 2019/6/15

Y1 - 2019/6/15

N2 - In this work, we fabricated a novel enzyme-free glucose sensor based on CuO nanorod, which was electrochemically derived from the copper-based metal-organic framework, Cu 3 (BTC) 2 (BTC: benzene tricarboxylate). Repeated potential cycling successfully oxidized Cu 3 (BTC) 2 to CuO, leaving residual carboxylate on the catalyst surface. The oxidation process was carefully investigated by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier-transform IR, and scanning electron microscopy. Cyclic voltammetry and chronoamperometry studies of the electrochemical oxidation of glucose on the CuO nanorod revealed excellent electrocatalytic performance with high sensitivity of 1523.5 μA mM −1 cm −2 , linear response up to 1.25 mM, and detection limit of 1 μM. Compared with commercial CuO powder, the CuO nanorod showed much higher sensitivity because of its large surface area (60.2 m 2 g −1 ). Moreover, it exhibited good selectivity to glucose over potential interfering compounds. These results suggest the potential application of the Cu 3 (BTC) 2 -derived CuO nanorod as a non-enzymatic glucose sensor.

AB - In this work, we fabricated a novel enzyme-free glucose sensor based on CuO nanorod, which was electrochemically derived from the copper-based metal-organic framework, Cu 3 (BTC) 2 (BTC: benzene tricarboxylate). Repeated potential cycling successfully oxidized Cu 3 (BTC) 2 to CuO, leaving residual carboxylate on the catalyst surface. The oxidation process was carefully investigated by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier-transform IR, and scanning electron microscopy. Cyclic voltammetry and chronoamperometry studies of the electrochemical oxidation of glucose on the CuO nanorod revealed excellent electrocatalytic performance with high sensitivity of 1523.5 μA mM −1 cm −2 , linear response up to 1.25 mM, and detection limit of 1 μM. Compared with commercial CuO powder, the CuO nanorod showed much higher sensitivity because of its large surface area (60.2 m 2 g −1 ). Moreover, it exhibited good selectivity to glucose over potential interfering compounds. These results suggest the potential application of the Cu 3 (BTC) 2 -derived CuO nanorod as a non-enzymatic glucose sensor.

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