Open AccessFacile preparation of three-dimensional NiO nanosheets array on carbon sphere and its high-performance nonenzymatic glucose detection
Author(s) -
Bo Hai,
Hang Wei
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/300/5/052037
Subject(s) - non blocking i/o , materials science , amperometry , coprecipitation , calcination , chemical engineering , nafion , electrochemistry , carbon fibers , electrolyte , biosensor , glassy carbon , glucose oxidase , cyclic voltammetry , electrocatalyst , electrode , inorganic chemistry , nanotechnology , catalysis , organic chemistry , composite material , chemistry , composite number , engineering
An ultrathin NiO nanosheets array loaded on carbon spheres were prepared by coprecipitation method and calcination approach. The as prepared NiO nanosheets contain high surface specific area due to their cross-sectional NiO three-dimensional structure which leads to more susceptible contacting between nanosheets and electrolyte. As the results, the reversible redox reaction should be accelerated. Moreover, NiO nanosheets array@carbon sphere (NiO@C) nanocompounds were mixed with Nafion solution and loaded onto glassy carbon electrodes (GCEs) to form a high performance non-enzymatic electrochemical glucose sensor. Cyclic voltammetric (CV) and Amperometric studies indicated NiO@C nanocompounds demonstrated excellent electrocatalytic activities for glucose detection.