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 | |
| Publication status | Published - 2019 Jun 15 |
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All Science Journal Classification (ASJC) codes
- Surfaces, Coatings and Films
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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 journal › Article
TY - JOUR
T1 - Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose
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.
UR - http://www.scopus.com/inward/record.url?scp=85061733807&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061733807&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2019.02.130
DO - 10.1016/j.apsusc.2019.02.130
M3 - Article
VL - 479
SP - 720
EP - 726
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -