Cu@Ni core-shell nanoparticles/reduced graphene oxide nanocomposites for nonenzymatic glucose sensor

被引：0

作者：

Wu K.-L. ^{[1
]}

Cai Y.-M. ^{[1
]}

Jiang B.-B. ^{[2
]}

Cheong W.-C. ^{[3
]}

Wei X.-W. ^{[1
]}

Wang W. ^{[1
]}

Yu N. ^{[1
]}

机构：

[1] College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-based Materials (State Key Laboratory Cultivation Base), Anhui Key Laboratory of Functional Molecular Solids, Anh

[2] School of Chemical and Engineering, Anhui University of Technology, Maanshan

[3] Department of Chemistry, Tsinghua University, Beijing

来源：

Wu, K.-L. (konglin@mail.ahnu.edu.cn) | 1600年 / Royal Society of Chemistry卷 / 07期

基金：

中国国家自然科学基金;

关键词：

408.2 Structural Members and Shapes - 462.1 Biomedical Equipment; General - 761 Nanotechnology - 804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 933 Solid State Physics - 951 Materials Science;

D O I：

10.1039/C7RA00910K

中图分类号：

学科分类号：

摘要：

In this work, the Cux@Ni100−x core-shell nanoparticles (CSNPs) are deposited on reduced graphene oxide (rGO) sheets, and this nanocomposites (in a Nafion matrix) are shown to be a viable materials for nonenzymatic sensing of glucose. A novel nonenzymatic glucose sensor based on a glass carbon electrode modified with Cu53@Ni47 CSNPs/rGO (referred to as Cu53@Ni47 CSNPs/rGO/GCE) displays an enhanced electrocatalytic activity to glucose oxidation in 0.1 M NaOH solution than that of Cu/GCE, Ni/GCE, Cu/rGO/GCE, Ni/rGO/GCE, and Cu52@Ni48 CSNPs/GCE, respectively. This is attributed to the three-in-one synergetic effects from their bimetallic compositions, specific core-shell structures, and interactions from the bimetallic CSNPs and support materials of rGO sheets. At an applied potential of +0.575 V (vs. SCE), the electrode has a low detection limit (0.5 μM; S/N = 3), a very wide linear range (0.001 mM to 4.1 mM), high sensitivity (780 μA mM−1 cm−2), and a fast response time (3 s). Thus, it has great potential for the development of nonenzymatic glucose sensors. © The Royal Society of Chemistry.

引用

页码：21128 / 21135

页数：7