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

Research output: Contribution to journalArticle

5 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 languageEnglish
Pages (from-to)720-726
Number of pages7
JournalApplied Surface Science
Volume479
DOIs
Publication statusPublished - 2019 Jun 15

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Nanorods
Glucose
Copper
Metals
Glucose sensors
Chronoamperometry
Electrochemical oxidation
Benzene
Powders
Cyclic voltammetry
Fourier transforms
X ray photoelectron spectroscopy
Enzymes
X ray diffraction
Oxidation
Scanning electron microscopy
Catalysts

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

Kim, Kijun ; Kim, Sungjin ; Lee, Ho Nyun ; Park, Young Min ; Bae, Youn-Sang ; Kim, Hyun Jong. / Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose. In: Applied Surface Science. 2019 ; Vol. 479. pp. 720-726.
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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.",
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Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose. / Kim, Kijun; Kim, Sungjin; Lee, Ho Nyun; Park, Young Min; Bae, Youn-Sang; Kim, Hyun Jong.

In: Applied Surface Science, Vol. 479, 15.06.2019, p. 720-726.

Research output: Contribution to journalArticle

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AU - Kim, Hyun Jong

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