Urea Oxidation on Ni(OH)2-X(SO4)0.5x·yH2o / C-PVC Composite Electrodes
The objective of this work was the preparation of nanostructured Ni(OH)2-x(SO4)0.5x·yH2O by hydrothermal method and their characterization by XRD, IR, AFM and SEM. These nanopowders of nickel hydroxide were supported on C-PVC composite electrodes for their electrochemical characterization by cyclic and differential pulse voltammetry.
The Ni(OH)2-x(SO4)0.5x·yH2O/C-PVC electrode showed good eletrocatalytic activity in the oxidation of urea and high anodic current was observed during the reverse scan (Figure 1).
Figure 1.Electrocatalytic response of Ni(OH)2-x(SO4)0.5x·yH2O/C-PVC electrode in absence (a) and presence of urea (b) in alkaline medium.
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