材料科学
纳米复合材料
氧化锡
原电池
X射线光电子能谱
透射电子显微镜
化学工程
电极
扫描电子显微镜
电化学
电化学气体传感器
氧化物
纳米技术
冶金
复合材料
化学
物理化学
工程类
作者
Li Tang,Huan Ke,Dongmei Deng,Han Long,Zhigang Zeng,Liqiang Luo
标识
DOI:10.1016/j.colsurfb.2020.110797
摘要
A novel non-enzymatic glucose sensor was established by galvanic replacement synthesis of Pd nanosheets (PdNS) on Cu/Cu2O nanocomposites using fluorine-doped tin oxide (FTO) substrates. To prepare PdNS-Cu/Cu2O/FTO electrode, Cu/Cu2O nanocomposites were firstly deposited on FTO electrode through potential oscillating, and then Pd nanosheets were synthesized on Cu/Cu2O nanocomposites by galvanic replacement reduction. X-ray diffraction, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy were applied to investigate the morphology and composition of PdNS-Cu/Cu2O nanohybrids. The synthesized PdNS-Cu/Cu2O exhibited great electrochemical activity toward glucose oxidation. Under optimized conditions, the proposed glucose sensor displayed a wide linear range from 0.5 μM to 2600 μM with detection limit of 0.1 μM. In addition, the proposed electrode was used to determine glucose in true blood specimen, indicating potential application for routine glucose analysis.
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