5 years ago

3D porous Cu@Cu2O films supported Pd nanoparticles for glucose electrocatalytic oxidation

3D porous Cu@Cu2O films supported Pd nanoparticles for glucose electrocatalytic oxidation
3D hierarchically porous Cu@Cu2O films supported Pd nanoparticles with excellent electrocatalytic activity are synthesized through electrochemical deposition, anodic oxidation and redox growth. Enzyme-free glucose biosensors based on the porous Cu@Cu2O-Pd electrodes exhibit higher sensitivity (1.157mAcm−2 mM−1) than those of the porous Cu@Cu2O films (0.607mAcm−2 mM−1), porous Cu films (0.507mAcm−2 mM−1) and Pd nanoparticles (0.107mAcm−2 mM−1). The enhanced activity of the porous Cu@Cu2O-Pd nanostructures might be attributed to the unique hierarchical porous structures with highly exposed active sites and synergetic effect from metal oxide semiconductor Cu2O and noble metal Pd.

Publisher URL: www.sciencedirect.com/science

DOI: S0013468617315189

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