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Dispersed Nickel Nanoparticles on Flower‐like Layered Nickel‐Cobalt Double Hydroxides for Non‐enzymic Amperometric Sensing of Glucose
Author(s) -
Chen Jiao,
Sheng Qinglin,
Wang Yan,
Zheng Jianbin
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500599
Subject(s) - amperometry , cyclic voltammetry , nickel , cobalt , nanocomposite , detection limit , hydroxide , transmission electron microscopy , materials science , nanoparticle , electrochemistry , scanning electron microscope , electrocatalyst , layered double hydroxides , nuclear chemistry , inorganic chemistry , cobalt hydroxide , chemistry , nanotechnology , electrode , chromatography , metallurgy , composite material
The article describes the preparation of supported nickel nanoparticles (NiNPs) by partial reduction of Ni,Co‐layered double hydroxide (NiCo‐LDH). The nanocomposites were characterized by X‐ray diffraction and their morphology and composition were characterized by scanning electron microscopy and transmission electron microscopy. The electrochemical properties of the nanocomposite were explored by cyclic voltammetry and amperometry, which revealed significant electrocatalytic behavior towards the oxidation of glucose. The resulted non‐enzymatic glucose sensor has a linear response to glucose in the 5.0 μM to 14.8 mM concentration range, a low detection limit of 1.6 μM, high sensitivity, and excellent selectivity.