Atom-diffusion enhanced electrocatalytic activity toward glucose oxidation on atacamite nanorods Online publication date: Fri, 23-Sep-2016
by Long Wang; Shu Jia; Ning Wang; Xia Cao
International Journal of Nanomanufacturing (IJNM), Vol. 12, No. 3/4, 2016
Abstract: The ability to design and characterise uniform nanoparticles with multi-anion group, where the less stable ligand enhances the diffusivity and activity of the metal ion, would be of broad interest in catalysis. In this paper, well dispersed Cu2Cl(OH)3 (atacamite) nanorods are synthesised via a facile wet chemical method. Electrochemical measurements demonstrate that the atacamite nanorods (ANRs) possess an enhanced electrocatalytic activity toward the oxidation of glucose. The ANRs-based electrode exhibits desirable catalytic performances with a short response time (<3 s), wide linear range (3 µM to 6 mM), and sound sensitivity (as high as 45.3 µA/mM). A high selectivity towards oxidation of glucose in the presence of oxygen, ascorbic acid, uric acid and dopamine is also observed. The good electrochemical properties are attributed to the intrinsic atomic diffusivities and electron transport efficiency at the liquid-solid interface, which makes such mixed oxides promising for wide applications in non-enzymatic biofuel cells and biosensors.
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