Sodium tetrafluorocuprate (Na2CuF4) has been synthesized by the precipitation method. Then, Na2CuF4was applied to glucose electrocatalysis for the first time, and modified bare Au electrode to obtainNa2CuF4/Au. Na2CuF4/Au has strong anti-interference, extremely broad linear range of glucosedetection, and great stability through stored for a long time at room temperature. A simple method wasused to prepare Na2CuF4 with different morphologies, and the effects of different morphologies for theglucose sensing performance were studied. The optimal experimental parameters of glucose sensingwere obtained through parameter optimization, which leads to enhanced glucose sensing performance.The selected Na2CuF4 was composed of large crystals and smaller crystals. The larger crystals sizes ofselected Na2CuF4 are in the range from 5 μm to 6 μm, and the smaller are in the range from 230 nm to300 nm, the two are mixed together. The Na2CuF4/Au electrode showed high sensitivity and very widelinear range (the first 0.01-0.15 mM, the second 0.15-19.15 mM, the third 19.15-63.15 mM). TheNa2CuF4/Au shows good accuracy, reproducibility and stability, as well as excellent selectivity. Theproperties of Na2CuF4 indicate that it has a wide application prospect in the field of glucoseelectrocatalysis as a new glucose sensitive material.
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