Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 602, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2020.125076
Keywords
CuxOHM/RGO hybrid; One-step; Hydrothermal method; Non-enzymatic sensor; Glucose
Categories
Funding
- Natural Science Foundation of Jiangsu Province [BK20170451, BK2018485, BK20181073, 17KJA430003]
- Six talent peaks project in Jiangsu Province [JNHB-143]
- Lianyungang 521 talent project [LYG52105-2018044, LYG52105-2018038]
- Scientific and Technological Program of Lianyungang [JC1603]
- Exceptional Talent Project in Jiangsu Province [2015-XCL-035]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Sea Swallow Project of Lianyungang City
- Innovation Fund of University Student [Z2018008]
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In this work, Cu2O/CuO hollow microspheres (CuxOHM) are scattered on the reduced graphene oxide (RGO) nanosheet to form CuxOHM/RGO hybrid by a simple one-step hydrothermal method. Characterizations of the prepared CuxOHM/RGO hybrid were performed by X-ray diffraction, X-ray photoelectron spectroscopy and scanning electron microscopy. Cyclic voltammetry and chronoamperometry were employed to investigate the electrocatalytic properties of the CuxOHM/RGO hybrid. We found that the constructed glucose sensor has a broad linear range of 0.01 -14.0 mM (R-2 = 0.997), a low detection limit of 1.15 mu M and a high sensitivity of 635.315 mu A/mM cm(2) . In comparison with pristine CuxOHM and RGO, the prepared hybrid glucose sensor showed significantly enhanced electrocatalytic activity. Additionally, the sensor also shows fabulous anti-interference ability, good stability. The excellent electrocatalytic performance together with the simple and low-cost preparation method make CuxOHM/RGO hybrid be an appealing electrocatalyst in glucose sensor application.
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