Electrochemical Glucose Sensor based on Microporous Carbon/CuO@Carbon/AuNPs Integrated Electrode. Issue 19 (21st May 2019)

• Record Type: Journal Article
• Authors: Qian, Chenchen; Han, Kuangyi; Weng, Weiming; Zhang, Yuanjie; Ma, Wei; Song, Yonghai; Wang, Li
• Is Part Of: ChemistrySelect. Volume 4:Issue 19(2019)
• Page Start: 5633
• Page End: 5640
• Publication Date: 2019-05-21
• Subjects: CuO -- Electrochemical nonenzymatic sensor -- Glucose -- Gold nanoparticles -- Three-dimensional porous carbon derived from kenaf stem; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201900245
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: A novel nonenzymatic glucose sensor based on CuO@Carbon nanostructures capped with gold nanoparticles (AuNPs) arrayed on three‐dimensional porous carbon derived from kenaf stem (3D‐KSC) was proposed. Here, the massive 3D‐KSC with honeycomb‐like structure was used as supporting matrix to load CuO@Carbon nanostructures. A small amount of AuNPs were coated on CuO@Carbon nanostructures, which were arrayed on 3D‐KSC uniformly. The AuNPs improved the electrical conductivity and catalytic activity of CuO@Carbon nanostructures greatly. Thus, the 3D‐KSC/CuO@Carbon/AuNPs integrated electrode based nonenzymatic glucose sensor showed good performance with the linear range of 3.71 μM–8.5 mM, the detection limit of 1.22 μM and the sensitivity of 935 μA cm −2 mM −1 . The satisfied performance made sure it can be used to detect glucose in real blood samples. Abstract : The 3D‐KSC/CuNPs@Carbon/AuNPs integrated electrode for nonenzymatic glucose sensor was prepared with simple preparation and low cost. The nanocomposites formed by CuO embedded in a porous carbon framework arrayed on 3D‐KSC have a larger specific surface area and better dispersion, showing a good catalytic activity for glucose, the sensor had a wide linear range from 3.71 μM to 8.5 mM, a lower detection limit of 1.22 μM, a high sensitivity for 935 μA cm −2 mM −1 .