One-pot synthesis of copper nanoparticles on glass: applications for non-enzymatic glucose detection and catalytic reduction of 4-nitrophenol

Copper/reduced graphene oxide film modified electrode for non-enzymatic glucose sensing application

“…A comparison of the electrochemical sensor performance between our Cu(II)/rGO and different modified electrodes from literatures is summarized in Table 1 . It is found that the sensitivity of our sensor is better than those of NiO-TiO 2 /GCE 13 , three-dimensional dendritic Pt nanostructures/GCE 16 , Cu/G 21 , nafion/CuNPs-nitrogen doped GP/GCE 52 , CuNPs-GP nanoflowers/GCE 53 , and rGO-Ni(OH) 2 /GCE 54 . Also, it provides a good dynamic range, which is wider than those of some sensing electrodes from previous reports, including Cu/G 21 , CuNPs-MWCNTs/GCE 55 , Ni(OH) 2 /rGO/MWCNT/GCE 56 , Cu 2 O/PtE 57 , rGO-Ni(OH) 2 /GCE 54 , CuNPs-GP/GCE 58 , and DMG-CuNPs/GCE 14 .…”

“…It is found that the sensitivity of our sensor is better than those of NiO-TiO 2 /GCE 13 , three-dimensional dendritic Pt nanostructures/GCE 16 , Cu/G 21 , nafion/CuNPs-nitrogen doped GP/GCE 52 , CuNPs-GP nanoflowers/GCE 53 , and rGO-Ni(OH) 2 /GCE 54 . Also, it provides a good dynamic range, which is wider than those of some sensing electrodes from previous reports, including Cu/G 21 , CuNPs-MWCNTs/GCE 55 , Ni(OH) 2 /rGO/MWCNT/GCE 56 , Cu 2 O/PtE 57 , rGO-Ni(OH) 2 /GCE 54 , CuNPs-GP/GCE 58 , and DMG-CuNPs/GCE 14 . Although Cu(II)-C 3 N 4 /MWCNTs/GCE 11 , Ni(OH) 2 /rGO/MWCNT/ GCE 56 , Cu 2 O/PtE 57 , CuNPs/GP/GCE 58 , and CuNPs-MWCNTs/GCE 55 reveal very high sensitivity, some use higher operating potentials and also complex fabrication processes.…”

“…Among these materials, some of the transition metals have been paid considerable attention because of their low cost, high conductivity, and good catalytic activity 18 . Copper (Cu) is one of the most attractive materials and various kinds of Cu nanostructures, including Cu nanoparticles (CuNPs) 14 , 21 , Cu nanowires (CuNWs) 22 , Cu oxide (CuO) 23 , and Cu(II) form 11 , 24 have been demonstrated with their high electrocatalytic activity toward glucose oxidation. The glucose oxidation at the Cu electrode surface is highly dependent on the redox couple of Cu(II)/Cu(III) in alkaline medium, and the Cu(III) species act as an active oxidizer for the oxidation of glucose 10 .…”

Facile Preparation of Granular Copper Films as Cathode for Enhanced Electrochemical Degradation of Methyl Orange

“…The grain size of each sample was approximately 30 nm. XPS analysis ( Figure 2 b) shows that sample GCF-0.2 was mainly composed of Cu, with Cu 2p3/2 and Cu 2p1/2 located at 932.7 and 952.6 eV, respectively, corresponding to Cu 0 [ 27 ], which is consistent with Figure 2 a. The weak O1s peak at 530.4 eV indicates that the sample contained a small amount of copper oxide, which may be caused by the oxidation of the surface of copper particles in the air.…”

An Electrochemically Reduced Copper/Reduced Graphene Oxide Film Modified Electrode for Sensitive Non-Enzymatic Glucose Detection in Human Serum

“…Among these materials, some of the transition metals have been paid considerable attention because of their low cost, high conductivity, and good catalytic activity 12 . Copper (Cu) is one of the most attractive materials and various kinds of Cu nanostructures, including Cu nanoparticles (CuNPs) 8,15 , Cu nanowires (CuNWs) 16 , Cu oxide (CuO) 17 , and Cu(II) form 5,18 have been demonstrated with their high electrocatalytic activity toward glucose oxidation. The glucose oxidation at the Cu electrode surface is highly dependent on the redox couple of Cu(II)/Cu(III) in alkaline medium, and the Cu(III) species act as an active oxidizer for the oxidation of glucose 4 .…”