Abstract
ABSTRACT A non-enzymatic glucose sensing nanocomposite comprised of CoFe2O4 nanosheets grown on Reduced Graphene Oxide (CoFe2O4@rGO) has been triumphantly prepared by a facile co-precipitation process. The characterisation results reveal that the CoFe2O4 nanosheets are vertically grown on the rGO substrate and form a porous network structure. Next, Electrochemical workstation is applied to study the glucose detection performance of the CoFe2O4@rGO. The sensing tests exhibit that when the volume ratio of anhydrous ethanol and deionised water is 10 ml: 30 ml, the fabricated CoFe2O4@rGO has better glucose detection performance. Its linear detection ranges from 0.5 mM – 10 mM and 10 mM – 35 mM, and the sensitivity reaches 50.5 μAmM−1cm−2 and 143.6 μAmM−1cm−2 respectively, which is significantly better than the previously reported non-enzyme glucose sensing materials. Furthermore, the CoFe2O4@rGO has good anti-interference and stability.
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